Disorders of childhood - summary of chapter 13 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Clinical psychology
Chapter 13
Disorders of childhood


Most theories of childhood disorder, consider childhood experience and development critically important to adult mental health.

Classification and diagnosis of childhood disorders

Before making a diagnosis of a particular disorder in children, clinicians must first consider what is typical for a particular age.

Some childhood disorders are unique to children.

The more prevalent childhood disorders are often divided into two broad domains,

  • Externalizing disorders
    Characterized by outward-directed behaviors
    • Attention-deficit/hyperactivity disorder
    • Conduct disorder
    • Oppositional defiant disorder
  • Internalizing disorders
    Characterized by more inward-focused experiences and behaviors
    • Childhood anxiety disorder
    • Mood disorders

Children and adolescents may exhibit symptoms form both domains.

Across cultures, externalizing behaviors are consistently found more often among boys and internalizing behaviors more often among girls, at least in adolescence.

Childhood disorders involve an interaction of genetic, neurobiological, and psychological factors.

Attention-deficit/hyperactivity disorder

Clinical descriptions, prevalence, and prognosis of ADHD

DSM-5 criteria for attention-deficit/hyperactivity disorder

  • Either A or B
  • A. Six or more manifestations of inattention present for at least 6 months to a maladaptive degree and greater that what would expected given a person’s developmental level, e.g., careless mistakes, not listening well, not following instructions, easily distracted, forgetful in daily activities
  • B. Six or more manifestations of hyperactivity-impulsivity present for at least 6 months to a maladaptive degree and greater than would be expected given a person’s developmental level e.g., fidgeting, running about inappropriately (in adults, restlessness), acting as is ‘driven by a motor’, interrupting or intruding, incessant talking.
    • Several of the above present before age 12
    • Present in two or more settings, e.g., at home, school, or work
    • Significant impairment in social, academic, or occupational functioning
    • For people age 17 or older, only five signs of inattention and/or five signs of hyperactivity-imupulsivity are needed to meet the diagnoses.

Although children with ADHD are usually friendly and talkative, they often miss subtle social cues.

Children with ADHD can know what the socially correct action is in hypothetical situations but be unable to translate this knowledge into appropriate behavior in real-life social interactions.

DSM-5 includes three specifiers to indicate which symptoms predominate

  • Predominantly inattentive: children whose problems are primarily those of poor attention
  • Predominantly hyperactive-impulsive: children whose difficulties result primarily from hyperactive/impulsive behavior
  • Combined: children who have both sets of problems

The combined specifier comprises the majority of children with ADHD.

A difficult differential diagnosis is between ADHD and conduct disorder, which involves gross violation of social norms.
These two disorders frequently co-occur and share some features in common.
But there are differences.

  • ADHD is associated more with off-task behavior in school, cognitive and achievement deficits, and better long-term prognosis.
  • Children with ADHD act out less in school and elsewhere and are less likely to be aggressive and to have antisocial parents.
  • Children with ADHD home life is also usually marked by less family hostility, and they are at less risk for delinquency and substance abuse in adolescence compared with children with conduct disorder

When both conduct disorder and ADHD occur in the same child, the worst features of each are manifest.

Internalizing disorders, such as anxiety and depression, also frequently co-occur with ADHD.

The hyperactive symptoms of ADHD predicted subsequent substance use.

Prevalence of ADHD is 3 to 7 percent.

ADHD symptoms may decline with age, but they do not entirely go away for many people.

Etiology of ADHD

Genetic factors

Genetic factors play are role in ADHD.
Heritability estimates of 70 to 80 percent.
Genes associated with the neurotransmitter dopamine.
A single gene will not ultimately be fount to account for ADHD.

Neurobiological factors

Brain structure and function differ in children with and without ADHD, particularly in brain areas linked to the neurotransmitter dopamine.
Children with ADHD exhibit less activation in frontal areas of the brain while performing different cognitive tasks.
Children with ADHD perform poorly on neuropsychological tests that rely on the frontal lobes. A basic deficit in this part of the brain may be related to the disorder.

Perinatal and prenatal factors

  • Low birth weight is a predictor of the development of ADHD, but this impact can be mitigated by greater maternal warmth.
  • Other complications associated with childbirth, as well as mothers’ use of substances are predictive of ADHD symptoms.

Environmental toxins
Exposure to tobacco in utero is associated with ADHD symptoms.
Chronic exposure to nicotine increases dopamine release in the brain and causes hyperactivity.
Withdrawal form nicotine is associated with decreases in dopamine release in the brain and causes irritability.
Maternal smoking might affect the dopaminergic system of the developing fetus, increasing the risk of developing behavioral disinhibition and ADHD.

Psychological factors in ADHD

The parent-child relationship interacts with neurobiological factors in a complex way to contribute to ADHD symptom expression.
It is also important to consider a parents own history of ADHD.

Treatment of ADHD

ADHD is typically treated with medication and with behavioral therapies based on operant conditioning.

Stimulant medications

The drugs used to treat ADHD reduce disruptive behavior and improve ability to concentrate.

Psychological treatment

Promising treatments for ADHD involve parent training and changes in classroom management.
In these treatments, children’s behavior is monitored at home and in school, and they are reinforced for behaving appropriately. Point systems and daily report cards (DRCs) are typical components of these programs. Children earn points or stars for behaving in certain ways, the children can spend their earnings for rewards.

School interventions for children with ADHD include training teachers to understand the unique needs for these children and to apply operant techniques in the classroom, providing peer tutoring in academic skills, and having teachers provide daily reports to parents about in-school behavior, which are followed by rewards at home.

Certain classroom structures can help children with ADHD.
Ideally, teachers vary the presentation format and materials used for tasks, keep assignments brief and provide immediate feedback on whether they have been done correctly, have an enthusiastic and task-focused style, provide breaks for physical exercise, and schedule academic work during the morning hours.

Intensive behavior therapies can be very helpful to children with ADHD.

Conduct disorder

Conduct disorder is another externalizing disorder.
The DSM-5 criteria focus on behaviors that violate the basic rights of others and violate major societal norms. Nearly all such behaviors are illegal.
The symptoms of conduct disorder must be frequent and severe enough to go beyond the mischief and pranks common among children and adolescents.

DSM-5 includes a ‘limited prosocial emotions’ diagnostic specifier for children who show characteristics such as lack of remorse, callousness, or shallow emotions.

A related but less well understood externalizing disorder is oppisitional defiant disorder (ODD)
Diagnosed if a child does not meet the criteria for conduct disorder, but exhibits such behaviors as losing his or her temper, arguing with adults, repeatedly refusing to comply with requests from adults, deliberately doing things to annoy others, and being angry, spiteful, touchy, or vindictive.

Commonly comorbid with ODD are ADHD, specific learning disorder, and communication disorders.
ODD is different from ADHD in that the defiant behavior is not thought to arise from attentional deficits or sheer impulsiveness.

More common among boys.

Clinical description, prevalence, and prognosis of conduct disorder

DSM-5 criteria for Conduct disorder

  • Repetitive and persistent behavior pattern that violates the basic rights of others or conventional social norms as manifested by the presence of three or more of the following in the previous 12 months and at least one of the m in the previous 6 months
  • A. Aggression to people and animals e.g., bullying, initiating physical fights, physical cruel to people or animals, forcing someone into sexual activity
  • B. destruction of property, e.g., fire-setting, vandalism
  • C. Deceitfulness or theft, e.g., breaking into another’s house or car, conning, shoplifting
  • D. Serious violation of rules, e.g., staying out at night before age 13 in defiance of parental rules, truancy before age 13
  • Significant impairment in social, academic, or occupational functioning.

Conduct disorder is defined by the impact of the child’s behavior on people and surroundings.

Many children with conduct disorder display other problems, such as substance abuse and internalizing disorders.
Anxiety and depression are common among children with conduct disorder.
Conduct disorder precedes depression and most anxiety disorders.

Conduct disorder is fairly common, with a prevalence of 9.5 percent.

  • 4-6 percent for boys and 1,2 to 9 percent for girls.

The prognosis for children diagnosed as having conduct disorder is mixed.
Men and women with the life-course-persistent type of conduct disorder will likely continue to have all sorts of problems in adulthood, including violent and antisocial behavior.
But, conduct disorder in childhood does not inevitably lead to antisocial behavior in adulthood.

Etiology of conduct disorder

Genetic factors

Heritability likely plays a part.
Both environment and genes matters.
Being maltreated was linked to later antisocial behavior via genetics.

Neuropsychological factors and the autonomic nervous system

Childhood profiles of children with conduct disorder

  • Poor verbal skills
  • Difficulty with executive functioning
  • Problems with memory
    Lower IQ.

Autonomic nervous system abnormalities are associated with antisocial behavior in adolescents.

  • Lower arousal levels
    Less fear of being caught

Psychological factors

Children with conduct disorder seem to be deficient in moral awareness, lacking remorse for their wrongdoings.

Behavioral theories that look both to modeling and operant conditioning provide useful explanations of the development and maintenance of conduct problems
Aggression is often an effective, albeit unpleasant, means of achieving a goal, it is likely to be reinforced.

  • Parenting characteristics such as harsh and inconsistent discipline and lack of monitoring are consistently associated with conduct problems
    Perhaps children who do not experience negative consequences for early misbehavior later develop more serious conduct problems

Social-cognitive perspective
Aggressive children interpreted ambiguous acts as evidence of hostile intend.
This can create a vicious cycle.

Peer influences

Being rejected by peers is causally related to aggressive behavior, particularly in combination with ADHD.
Associating with other deviant peers also increases the likelihood of delinquent behavior.

Children with conduct disorder choose to associate with like-minded peers and being around deviant peers help initiate antisocial behavior.

Environmental influence, particularly neighborhood and family, factors play a role in whether children associate with deviant peers, and this in turn influences and exacerbates conduct disorder.

Sociocultural factors

The combination of early antisocial behavior in the child and socioeconomic disadvantage in the family predicts early criminal arrests.

Treatment of conduct disordered

The treatment of conduct disorder appears to be most effective when it addresses the multiple systems involve in the life of a child.

Family interventions

Some of the most promising approaches to treating conduct disorder involve intervening with the parents and families of the child.
Intervening early, even just briefly, can make an impact.

Parent management training (PMT)
Parents are taught to modify their responses to their children so that prosocial rather than antisocial behavior is consistently rewarded.
Parents are taught to use techniques such as positive reinforcement when the child exhibits positive behavior and time-out and loss of privileges for aggressive or antisocial behaviors.

Multisystemic treatment

Multisystemic treatment (MST)
Involves delivering intensive and comprehensive therapy services in the community, targeting the adolescent, the family, the school, and, in some cases, the peer group.
The treatment is based on the view that conduct problems are influenced by multiple factors within the family as well as between the family and other social systems.

The therapy’s uniqueness lies in emphasizing individual and family strengths, identifying the social context for the conduct problems, using present-focused and attention-oriented interventions, and using interventions that require daily or weekly efforts by family members.
Treatment is provided in ‘ecologically valid’ settings, such as the home or school to maximize the chances that improvement will carry through into the regular lives of children and their families.

Depression and anxiety in children and adolescents

Depression and anxiety commonly co-occur with each other.

Depression

Clinical descriptions and prevalence of depression in childhood and adolescence

Children and adolescents ages 7 to 17 and adults both tend to show the following symptoms:

  • Depressed mood
  • Inability to experience pleasure
  • Fatigue
  • Concentration problems
  • Suicidal ideation

Children differ from adolescents in showing:

  • More guilt
  • Lower rates of early-morning wakefulness
  • Early-morning depression
  • Loss of appetite
  • Weight loss

Depression in children is recurrent.

Depression occurs in less than 1 percent of preschoolers.
2 to 3 percent of school-age children.
In adolescence, rates are around 6 percent for girls and 4 percent for boys.

Etiology of depression in childhood and adolescence

Genetic factors play a role.
Early adversity and negative life events also play a role.
Rejection by parents is modestly associated with depression in childhood.

Other interpersonal factors are associated with depression in children

  • Negative interactions with parents
  • Impaired relationships with siblings, friends, and romantic partners
    Children with depression are often rejected by peers because there are not enjoyable to be around.
    The negative interactions in turn may aggravate the negative self-image and sense of worth that the depressed child has.

Cognitive distortions and negative attributional styles are associated with depression in children and adolescents in ways similar to what has been found in adults.
Negative thoughts and hopelessness also predict a slower time to recovery from depression among adolescents.
Attribution style does not interact with negative life events to predict depression for young children.

Treatment of childhood and adolescent depression

There are safety concerns about the use of antidepressants among children and adolescents.

Most psychosocial interventions are modeled after treatments developed for adults.

  • Interpersonal therapy has been modified for use with depressed adolescents by focusing on issues of concern to adolescents.
  • Cognitive behavioral therapy in school settings

Two types of preventive interventions for depression:

  • Selective
    Target particular youth based on family risk factors, environmental factors, or personal factors.
  • Universal
    Targeted toward large groups and seek to provide education and information about depression.

Anxiety

Fears are reported more often for girls than for boys.

Clinical descriptions and prevalence of anxiety in childhood and adolescence

For fears and worries to be classified as disorders according to DSM criteria, children’s functioning must be impaired.
Unlike adults, children need not regard their fear as excessive or unreasonable, because children sometimes are unable to make such judgments.

Prevalence: 3-5%

Separation anxiety disorder

Separation anxiety disorder is characterized by worry that some harm will befall their parents or themselves when they are away from their parents.
When at home, such children shadow one or both of their parents.

DSM-5 criteria for Separation anxiety disorder

  • Excessive anxiety that is not developmentally appropriate about being away from home and parents or other attachment figures, with at least three symptoms that last for at least 4 weeks (for adults symptoms must last for 6 months or more)
    • Recurrent and excessive distress when separated
    • Excessive worry that something bad will happen to parent or attachment figure
    • Refusal or reluctance to go to school, work, or elsewhere
    • Refusal or reluctance to sleep away from home
    • Nightmares about separation
    • Repeated physical complaints

Another anxiety disorder among children and adolescents is social anxiety disorder.
Selective mutism: refusing to speak at all in unfamiliar social circumstances.
At home, such children ask their parents endless questions about situations that worry them.
Withdrawn children usually have warm and satisfying relationships with family members and family friends, and they show a desire for affection and acceptance.

Prevalence for social anxiety disorder among children and adolescents is around 1%

Children who are exposed to traumas such as chronic abuse, community violence, and natural disasters may experience symptoms of posttraumatic stress disorder (PTSD) similar to those experienced by adults.

Obsessive compulsive disorder is also found among children and adolescents.
Prevalence 1 to 4%
The symptoms in childhood are similar to symptoms in adulthood.
More common in boys than in girls, but this difference does not remain in adolescence and adulthood.

Etiology of anxiety disorders in childhood and adolescence

  • Genetics play a role in anxiety among children.
    Hertiablity ranging from 29 to 50 percent.
  • Parenting practices play a small role in childhood anxiety.
    Parental control and over-protectiveness, more than parental rejection, is associated with childhood anxiety.
  • Emotion-regulation problems
  • Insecure attachment in infancy

Theories of the etiology of social anxiety in children are generally similar to theories of social anxiety in adults.

Children overestimate the danger in many situations and underestimate their ability to cope with them.
The anxiety created by these cognitions then interferes with social interaction, causing the child to avoid social situations and thus not to get much practice at social skills.

Behavioral inhibition is an important risk factor for the development of social anxiety.

Theories about the causes of PTSD in children are similar to the theories for adults.

  • There must be exposure to trauma
  • Children who have a propensity to experience anxiety may be at more risk for developing PTSD after exposure to trauma.
  • Specific risk factors for children may include
    • Level of family stress
    • Coping styles of the family
    • Past experiences with trauma.

Some theories suggest that parental reactions to trauma can help to lessen children’s distress. If parents appear in control and calm in the face of stress, a child’s reaction may be less severe.

Treatment of anxiety in childhood and adolescence

Many fears simply dissipate with time and maturation.

For the most part, treatment of such fears is similar to that employed with adults, with suitable modifications to accommodate the different abilities and circumstances of childhood.
The major focus of these treatments is on exposure to the feared object.

Cognitive behavior therapy can be helpful to many children with anxiety disorders.
This type of treatment typically involves working with both children and parents.

  • Beyond exposure, treatment includes psychoeducation, cognitive restructuring, modeling, skill training, and relapse prevention.

One of the more widely used treatments is called the Coping Cat.
Used with children between the ages 7 and 13.
Focuses on confronting fears, developing new ways to think about fears, exposure to feared situations, practice, and relapse prevention.
Parents are also included in a couple of sessions.

Learning disabilities

A learning disability: a condition in which a person shows a problem in a specific area of academic, language, speech, or motor skills that is not due to intellectual disability or deficient educational opportunities.

Clinical descriptions

DSM-5 criteria for Specific learning disorder

  • Difficulties in learning basic academic skills inconsistent with person’s age, schooling, and intelligence persisting for at least 6 months.
  • Significant interference with academic achievement or activities of daily living.

Learning disabilities groups together three categories of disorders

  • Specific learning disorder
  • Communication disorders
  • Motor disorders

Any of these disorders may apply to a child who fails to develop to the degree appropriate to his or her intellectual level in a specific academic, language, or motor skill area.
Learning disabilities are often identified and treated within the school system.

More common in boys.
Prevalence is 4 -7 percent.

Etiology of learning disabilities

Dyslexia and dyscalculia are coded as specifiers for the DSM-5 category specific learning disorder.

Etiology of dyslexia

There is a heritable component to dyslexia.
The genes that are associated with dyslexia are the same genes associated with typical reading abilities.
Genes play a bigger role in dyslexia among children whose parents have more education.

The core deficits in dyslexia include problems in language processing.
One or more problems in language processing that might underlie dyslexia.

  • Perception of speech and analysis of the sounds of spoken language and their relation to printed words
  • Difficulty recognizing rhyme and alliteration
  • Problems with rapidly naming familiar objects
  • Delays in learning syntactic rules

Many of these fall under phonological awareness, which is believed to be critical to development of reading skills

Areas in the left temporal, parietal, and occipital regions of the brain are involved in dyslexia.

Etiology of dyscalculia

Some genetic influence. Particular, the type of math disability that involves poor semantic memory is most likely to be heritable.
Genes associated with dyscalculia are also associated with mathematics ability.

Areas of the parietal lobe are less active. The intraparietal sulcus is less active.

Treatment of learning disabilities

Phonics instruction is beneficial for children with learning difficulties.

Intellectual disability

Diagnosis and assessment of intellectual disability

DSM-5 criteria for Intellectual disability

  • Intellectual deficits (e.g., in solving problems, reasoning, abstract thinking) determined by intelligence testing and broader clinical assessment
  • Significant deficits in adaptive functioning relative to the person’s age and cultural group in one or more of the following areas: communication, social participation, work or school, independence at home or in the community, requiring the need for support at school, work, or independent life.
  • Onset during childhood development.

The DSM-5 diagnostic criteria for intellectual disability include three criteria.

  • Deficits in intellectual functioning
  • Deficits in adaptive behavior
  • Onset during development.

IQ score most be considered within a person’s cultural context.
Adaptive functioning must be assessed and considered in the light of the person’s age and cultural group.
Severity is assessed in three domains

  • Conceptual
  • Social
  • Practical

Etiology of intellectual disability

Genetic or chromosomal abnormalities

One chromosomal abnormality that has been linked with intellectual disability is trisomy 21.
Having an extra copy.
Down syndrome.

Fragile X syndrome.
Underdeveloped ears and a long, thin face.
Many people with fragile X syndrome have intellectual disability. Others may not have intellectual disability, but nonetheless have learning disabilities, difficulties on neuropsychological tests, and mood swings.

Recessive-gene diseases

Several hundred recessive-gene diseases have been identified, and many of them can cause intellectual disability.

Phenylketonuria (PKU)
The infant, born without obvious signs of difficulty, soon begins to suffer from a deficiency of a liver enzyme, phenylalanine hydroxylase. This enzyme is needed to convert phenylalanine, an amino acid contained in protein, to tyrosine, an amino acid that is essential for the production of certain hormones.
Because of this enzyme deficiency, phenylalanine and its derivative, phenylpyruvic acid, are not broken down and instead build up in the body’s fluid.
This build up eventually damages the brain because the unmetabolized amino acid interferes with the process of myelination. The frontal lobes are particularly affected, and intellectual disabilities can be profound.

Infectious diseases

While in utero the fetus is at increased risk of intellectual disabilities resulting from maternal infectious diseases such as rubella.
The consequences of these diseases are most serious during the first trimester of pregnancy, when the fetus has not detectable immunological response.

Infectious diseases can also affect a child’s developing brain after birth.
In adulthood, these infections are usually far less serious.

Environmental hazards

Several environmental pollutants are implicated in intellectual disability.

Treatment of intellectual disability

Residential treatment

Adults with intellectual developmental disorder live in small to medium-sized residents that are integrated into the community.

Behavioral treatment

Early-intervention programs using behavioral techniques have been developed to improve the level of functioning of people with intellectual disability.
Specific behavioral objectives are defined, and children are taught skills in small, sequential steps.

Children with more severe intellectual disability need intensive instruction.
To teach a child a particular routine, the therapist usually begins by dividing the target behavior into smaller components. Operant conditioning is applied. → applied behavior analysis.

Cognitive treatments

Self-instructional training teaches children to guide their problem-solving efforts trough speech.

Computer-assisted instruction

The visual and auditory components of computers can help to maintain the attention of distractible students.
The level of the material can be geared to the individual.
The computer can meet the need for numerous repetitions of the material.

Autism spectrum disorder

Clinical descriptions, prevalence, and prognosis of autism spectrum disorder

DSM-5 criteria for Autism spectrum disorder

  • A. Deficits in social communication and social interactions as exhibited by the following:
    • Deficits in nonverbal behaviors such as eye contact, facial expression, body language
    • Deficit in development of peer relationships appropriate to developmental level
    • Deficits in social or emotional reciprocity such as not approaching others, not having a back-and-forth conversation, reduced sharing of interests and emotions
  • B. Restricted, repetitive behavior patterns, interests, or activities exhibited by at least two of the following:
    • Stereotyped or repetitive speech, motor movements, or use of objects
    • Excessive adherence to routines, rituals in verbal or nonverbal behavior, or extreme resistance to change
    • Very restricted interests that are abnormal in focus, such as preoccupation with parts of objects
    • Hyper- or hypereactivity to sensory input or unusual interest in sensory environment, such as fascination with lights or spinning objects
  • C. Onset in early childhood
  • D. Symptoms limit and impair functioning.

Social and emotional disturbances

Children with ASD can have profound problems with the social world.
They may rarely approach others and may look through or past people or turn their backs on them.
Few children with ASD initiat play with other children, and they are usually unresponsive to anyone who approaches them.
Children with ASD sometimes make eye contact, but their gaze may have an unusual quality.
Problem with joint attention.

Children with ASD do not pay attention to other people’s faces or capture their gaze.
Children with ASD spend much less time in symbolic play.
Disturbances in Theory of mind.

Communication deficits

Even before they acquire language, some children with ASD show deficits in communication.
Babbling is less frequent in infants with ASD and conveys less information.
Language deficits.

Echolalia: the child echoes, usually with remarkable fidelity, what he or she has heard another person say.
Pronoun reversal: children refer to themselves as ‘he’, ‘she’, or ‘you’.

Repetitive and ritualistic acts

Children with ASD can become extremely upset over changes in their daily routines and surroundings.
An obsessional quality may pervade the behavior of children with ASD.
Children with ASD are likely to perform a limited number of behaviors and are less likely to explore new surroundings.
Children with ASD may display stereotypical behavior.
Some children with ASD can become preoccupied with and form strong attachments to simple inanimate objects and more complex mechanical objects.

Comorbidity and ASD

Many children with ASD score below 70 on standardized intelligence tests, which can make it difficult to distinguish between ASD and intellectual disability.
Differences:

  • Children with intellectual disability usually score poorly on all parts of an intelligence tests, but children with ASD may score poorly on those subtests related to language.
  • Children with ASD usually obtain better scores on items requiring visualspatial skills.

ASD is comorbid with learning disorders.
ASD is also comorbid with anxiety.

Prevalence of autism spectrum disorder

ASD begins in early childhood and can be evident in the first months of life.
More body than girls.
Diagnosis is stable

Prognosis for autism spectrum disorder

Children with higher Iqs who learn to speak before age 6 have the best outcomes, and few of these function fairly well in adulthood.

Etiology of autism spectrum disorder

Genetic factors

A genetic component with heritability estimates of around 0.8.
ASD is linked genetically to a broader spectrum of deficits in communication and social interaction.

Neurobiological factors

The brains of adults and children with ASD are larger.
Neurons might not being pruned correctly.
Overgrown areas are the frontal, temporal, and cerebellar, which have been linked to language, social, and emotional functions.

Treatment of autism spectrum disorder

The most promising efforts at treatment of ASD are psychological.
Treatments are usually aimed at reducing unusual behavior and improving their communication and social skills
In most cases, the earlier the intervention begins, the better the outcome.

Behavioral treatment

Operant conditioning.

Education provided by parents is beneficial.

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Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition) - a summary

Introduction and historical overview - summary of chapter 1 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Introduction and historical overview - summary of chapter 1 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 1
Introduction and historical overview


Introduction

Psychopathology: the field concerned with the nature, development, and treatment of mental disorders.
Continually developing and adding new findings.

  • Tries to remain objective
  • Closeness to the subject matter adds to its intrinsic fascination.

Sigma: the destructive beliefs and attitudes held by a society that are ascribed to groups considered different in some manner, such as people with mental illness.
Stigma has four characteristics:

  • A label is applied to a group of people that distinguishes them from others
  • The label is liked to deviant or undesirable attitudes by society
  • People with the label are seen as essentially different from those without the label, contributing to an ‘us’ versus ‘them’ mentality.
  • People with the label are discriminated against unfairly

The treatment of individuals with mental disorders throughout recorded history has not generally been good, and this has contributed to their stigmatization.
Mental illness remains one of the most stigmatized of conditions in the twenty-first century.

Defining mental disorder

Mental disorder is one disorder that contains several characteristics.

  • The disorder occurs within the individual
  • It involves clinically significant difficulties in thinking, feeling, or behaving
  • It involves a dysfunction in processes that support mental functioning
  • It is not a culturally specific reaction to an event
  • It is not primarily a result of social deviance of conflict with society

Four key characteristics that any comprehensive mental disorder definition ought to have:

  • Disability
  • Personal distress
  • Violation of social norms
  • Dysfunction

No single characteristic can fully define the concept.
Mental disorder is usually determined based on the presence of several characteristics at one time.

Personal distress

A person’s behavior may be classified as disordered if it causes him or her great distress.

But not all mental disorders cause distress.
And not all behavior that causes distress is disordered.

Disability

Impairment in some important area of life.

Disability alone cannot be used to define mental disorder. Not all disorders involve disability.
Other characteristics that might, in some circumstances, be considered disabilities, do not fall within the domain of psychopathology.

Violation of social norms

In the realm of behaviors, social norms are widely held standards that people use consciously or intuitively to make judgments about where behaviors are situated on such scales as good-bad, right-wrong, justified-unjustified, and acceptable-unacceptable.
Behavior that violates social norms might be classified as disordered.

This is not enough for defining mental disorder. It is too broad and too narrow.
And social norms vary across cultures and ethnic groups.

Dysfunction

Harmful dysfunction. Has a value judgment and a objective component (dysfunction).
A judgment

.....read more
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Current paradigms in psychopathology - summary of chapter 2 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Current paradigms in psychopathology - summary of chapter 2 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology 
Chapter 2
Current paradigms in psychopathology


Introduction

Science is a human enterprise that is bound by scientists’ human limitations.

Paradigm: a conceptual framework or approach within a scientist works.
A paradigm as profound implications for how scientist operate at any given time.

  • Paradigms specify what problems scientists will investigate and how they will go about the investigation.

Three paradigms that guide the study and treatment of psychopathology

  • Genetic
  • Neuroscience
  • Cognitive behavioral

Factors that cut across all the paradigms:

  • Emotion
  • Sociocultural factors

The genetic paradigm

Almost all behavior is heritable to some degree.
Despite this, genes do not operate in isolation from the environment. Through the life span, the environment shapes how our genes are expressed, and our genes also shape the environment.
Nature via nurture.
Without the environment, genes could not express themselves and thus contribute to behavior.

Genes: the carriers of genetic information.

The number of genes is not important. The sequencing, or ordering, of these genes as well as their expression is what makes us unique.
What genes do matters more than the number of genes we have. Genes make proteins that in turn make the body and the brain work.

Gene expression: some proteins switch, or turn, on and off other genes.
Polygenic: several genes turning themselves on and off as they interact with a person’s environment is the essence of genetic vulnerability.
We do not inherit mental illness from our genes. We develop mental illness trough the interaction of our genes with our environment.

Heritability: the extent to which variability in a particular behavior in a population can be accounted for by genetic factors.

  • Rages from 0.0 to 1.0. The higher the number, the greater the heritability.
  • Heritability is relevant only for a large population of people, not a particular individual.

Shared environment factors: those things that members of a family have in common, such as parents’ marital status.
Nonshared environment (or unique environment) factors: those things believed to be important in understanding why two siblings from the same family can be so different.
Nonshared environmental experiences have much more to do with the development of mental illness than the shared experiences.

Behavior genetics

Behavior genetics: the study of the degree to which genes and environmental factors influence behavior.

Genotype: the total genetic makeup of an individual, consisting of inherited genes. The genotype cannot be observed outwardly.
Phenotype: the totality of observable behavioral characteristics.

The genotype should not be viewed as a static entity. Genetic programs are quite flexible.
The phenotype changes

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Diagnosis and assessment - summary of chapter 3 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Diagnosis and assessment - summary of chapter 3 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology 
Chapter 3
Diagnosis and assessment


Introduction

Diagnosis can be the first major step in good clinical care.
Having a correct diagnosis will allow the clinician to describe base rates, causes, and treatment.
Hearing a diagnosis can help a person understand why certain symptoms are occurring.

Two concepts that play a key role in diagnosis and assessment:

  • Reliability
  • Validity

Cornerstones of diagnosis and assessment

Reliability

Reliability: consistency of measurement.

  • Inter-rater reliability:
    The degree to which two independent observers agree on what they have observed.
  • Test-retest reliability:
    The extent to which people being observed twice or taking the same test twice, receive similar scores.
  • Alternate-form reliability:
    The extent to which scores on the two forms of the test are consistent
  • Internal consistency reliability:
    Whether the items on a test are related to one another.

Validity

Validity: whether a measure measures what it is supposed to measure.
Unreliable measures will not have good validity.
Reliability does not guarantee validity.

  • Content validity:
    Whether a measure adequately samples the domain of interest.
  • Criterion validity:
    Whether a measure is associated in an expected way with some other measure.
  • Concurrent validity: 
    If both variables are measured at the same point in time.
  • Predictive validity:
    Evaluating the ability to measure to predict some other variable that is measured at the same point in the future.
  • Construct validity:
    Relevant when we want to interpret a test as a measure of some characteristic or construct that is not observed simply or overtly. Evaluated by looking at a wide variety of data from multiple sources.

The diagnostic system of the American psychiatric association: DSM-5

Diagnostic and Statistical Manual of Mental Disorders (DSM).

Multiaxial classification system forces the diagnostician to consider a broad range of information.
Axis:

  • I clinical disorders
  • II Developmental disorders and personality disorders
  • III General medical conditions
  • IV Psychological and environmental problems
  • V global assessment of functioning scale

Removal oaf the multiaxial system

The multiaxinal system developed for DSM-IV-TR is removed in DSM-5.
In place of the first three axes clinicians are simply to note psychiatric and medical diagnoses.

Organizing diagnoses by causes

DSM-5 defines diagnoses entirely on the basis of symptoms.

  • Some have argued that advances in our understanding of etiology (causes) could help us rethink this approach.
    But our knowledge base is not yet strong enough to organize diagnoses around etiology.

In the DSM-5, the chapters are reorganized to reflect patterns of comorbidity and shared etiology.

Enhanced sensitivity to the developmental nature of psychopathology

Childhood diagnoses

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Research methods in psychopathology - summary of chapter 4 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Research methods in psychopathology - summary of chapter 4 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 4
Research methods in psychopathology


Introduction

Theory: a set of propositions meant to explain a class observations.
Hypotheses: expectations about what should occur if a theory is true.

Approaches to research on psychopathology

The case study

Case study: recording detailed information about one person at a time.

  • Lack the control and objectivity of other research methods

The case study can be used:

  • To provide a rich description of a clinical phenomenon
  • To disprove an allegedly universal hypotheses
  • To generate hypotheses that can be tested through controlled research

The correlational method

Variables are measured as they exist in nature.
Psycho-pathologist will rely on correlational methods when there are ethical reasons not to manipulate a variable.
Comparison of people with and without diagnoses can be correlational as well.

Measuring correlation

  • The first step in determining a correlation is to obtain pairs of observations of the two variables in question.
  • Once such pairs of measurement is obtained, the strength of the relationship between the paired observation can be computed to determine the correlation coefficient (r).

Statistical and clinical significance

A statistical correlation is unlikely to have occurred by chance.
A non-significant correlation may have occurred by chance, so it does not provide evidence for an important relationship.

A statistical finding is usually considered significant if the probability that it is a chance finding is 5 less in 100. p<0.05.
In general, as the absolute size of the correlation coefficient increases, the result is more likely to be statistically significant.
The significance is also influenced by the number of participants in the study.

Clinical significance: whether a relationship between variables is large enough to matter.

Problems of causality

Correlational method does not allow determination of cause-effect relationship.

  • Directionality problem
  • Third variable problem.
    One way of overcoming the directionality problem is based on the idea that causes must precede effect.
    • Longitudinal design
      The researchers tests whether causes are present before a disorder has developed.
    • Cross-sectional design
      Measures the causes and effects at the same point in time
    • High-risk method
      Only people with above-average risk of developing a disorder would be studied.

Epidemiology: the study of the distribution of disorders in a population.
Focuses on three features of a disorder

  • Prevalence:
    The proportion of people with the disorder either currently or during their lifetime
  • Incidence:
    The proportion of people who develop new cases of the disorder in some period
  • Risk factors:
    Variables that are related to the likelihood of developing a disorder.

Epidemiological studies are designed to be representative of

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Mood disorders - summary of chapter 5 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Mood disorders - summary of chapter 5 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 5
Mood disorders


Mood disorders involve disabling disturbances in emotion.

Clinical descriptions and epidemiology of mood disorders

The DSM-5 recognizes two broad types of mood disorders:

  • Those that involve only depressive symptoms
  • Those that involve manic symptoms

Depressive disorders

The cardinal symptoms of depression include profound sadness and/or an inability to experience pleasure.

Physical symptoms of depression are also common

  • Fatigue and low energy
  • Physical aches and pains
    These symptoms can be profound enough to convince afflicted persons that they must be suffering from some serious medical condition, even though the symptoms have no apparent physical cause.
  • Although people with depression typically feel exhausted, they may find it hard to fall asleep and may wake up frequently.
    Other people sleep throughout the day.
  • They may find that foot tasted bland or that their appetite is gone, or that may experience an increase in appetite.
  • Sexual interest disappears
  • Some may find their limbs feel heavy
  • Psychomotor retardation: thoughts and movements may slow
  • Psychomotor agitation: not being able to sit still

Social withdrawal is common.

Major depressive disorder

Major depressive disorder (MDD)

  • An episodic disorder: symptoms tend to be present for a period of time and then clear.
    Even though periods tend to dissipate over time, an untreated episode may stretch for 5 months or even longer.
    For a small percentage of people, the depression becomes chronic.
  • Major depressive episodes tend to recur, once a given episode clears, a person is likely to experience another episode.
    The average number of episodes is about four. With every new episode that a person experiences, his or her risk for experiencing another episode goes up by 16 percent.

DSM-5 criteria

  • Sad mood and loss of pleasure in usual activities
  • At least five symptoms (counting sad mood and loss of pleasure)
    • Sleeping too much or too little
    • Psychomotor retardation or agitation
    • Weight loss or change in appetite
    • Loss of energy
    • Feelings of worthlessness or excessive guilt
    • Difficulty concentrating, thinking, or making decisions
    • Recurring thoughts of death or suicide
  • Symptoms are present nearly every day, most of the day, for at least 2 weeks.
  • Symptoms are distinct and more severe than a normative response to significant loss.

Persistent depressive disorder (Dysthymia)

People wit dysthymia are chronically depressed, more then half of the time for at least 2 years. They feel blue or derive little pleasures from usual activities and pastimes.

DSM-5 criteria for persistent depressive disorder (dysthymia)

  • Depressed mood for most of the day more than half of the time for 2 years (or
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Anxiety disorders - summary of chapter 6 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Anxiety disorders - summary of chapter 6 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 6
Anxiety disorders


Introduction

Anxiety: apprehension over an anticipated problem (future)
Fear: a reaction to immediate danger

Both anxiety and fear can involve arousal, or sympathetic nervous system activity.
Anxiety and fear are both adaptive.

  • Fear is fundamental for fight-or-flight reactions.
  • Anxiety helps us notice and plan for future threats

In some anxiety disorders, the fear system seems to misfire. A person experiences fear at a time when there is no danger in the environment.
Anxiety creates a U-shape curve with performance.

Anxiety disorders as a group are the most common type of psychiatric diagnosis.
Phobias are particularly common

Clinical descriptions of the anxiety disorder

For each anxiety disorder, several criteria must be met for a DSM-5 diagnoses to be made:

  • Symptoms must interfere with important areas of functioning or cause marked stress
  • Symptoms are not caused by a drug or a medical condition
  • The fears and anxieties are distinct from the symptoms of another anxiety disorder

Each disorder, though, is defined by a different set of symptoms related to anxiety or fear.

Anxiety disorders:

  • Specific phobia
  • Social anxiety disorder
  • Panic disorder
  • Agoraphobia
  • Generalized anxiety disorder

Specific phobias

A specific phobia: a disproportionate fear caused by a specific object or situation.
The person recognizes that the fear is excessive, but still goes to great lengths to avoid the feared object or situation.

Specific phobias tend to cluster around a small number of feared objects and situations.
The DSM categorizes specific phobias according to these sources of fear.
A person with one type of specific phobia is very likely to have another type of specific phobia as well. There is high comorbidity of specific phobias.

DSM-5 criteria:

  • Marked and disproportionate fear consistently triggered by specific object or situations
  • The object or situation is avoided or else endured with intense anxiety
  • Symptoms persists for at least 6 months

Social anxiety disorder

Social anxiety disorder: a persistent, unrealistically intense fear of social situations that might involve being scrutinized by, or even just exposed to, unfamiliar people.
The problems caused by it tend to be much more pervasive and to interfere much more with normal activities than the problems caused by other phobias.

  • People with social anxiety disorder usually try to avoid situations in which they might be evaluated, show signs of anxiety, or behave en embarrassing ways.

Social anxiety disorder generally begins during adolescence. For some, though, the symptoms first emerge during childhood.
Without

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Obsessive-compulsive-related and trauma-related disorders - summary of chapter 7 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Obsessive-compulsive-related and trauma-related disorders - summary of chapter 7 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 7
Obsessive-compulsive-related and trauma-related disorders


Obsessive-compulsive and related disorders

OCD is defined by repetitive thoughts and urges (obsessions) as well as an irresistible need to engage in repetitive behaviors or mental acts (compulsions)

Body dysmorphic disorder and hoarding disorder have symptoms or repetitive thoughts and behaviors.

  • People with body dysmorphic disorder spend hours a day thinking about their appearance, and almost all engage in compulsive behaviors such as checking their appearance in the mirror.
  • People with hoarding disorder spend a good deal of their time repetitively thinking about their current and potential future possessions. They also engage in intensive efforts to acquire new objects, and these efforts can resemble the compulsions observed in OCD.

For all three conditions, the repetitive thoughts and behaviors are distressing, feel uncontrollable, and require a considerable amount of time.
For the person with these conditions, the thoughts and behaviors feel unstoppable.

These syndromes often co-occur.

Clinical descriptions and epidemiology of the obsessive-compulsive and related disorders

Obsessive-compulsive disorder

Obsessive-compulsive disorder (OCD) is characterized by obsessions or compulsions.

Obsessions: intrusive and recurring thoughts, images, or impulses that are persistent and uncontrollable and often appear irrational to the person experiencing them.
For people with OCD, obsessions have such force and frequency that they interfere with normal activities.
People with obsessions may also be prone to extreme doubts, procrastination, and indecision.

Compulsions: repetitive, clearly excessive behaviors or mental acts that the person feels driven to perform to reduce the anxiety caused by obsessive thoughts or to prevent some calamity from occurring.
Even though rationally understanding that there is no need for this behavior, the person feels as something dire will happen if the act is not performed.
The sheer frequency with which compulsions are repeated may be staggering.
Commonly reported compulsions:

  • Pursuing cleanliness and orderliness, sometimes through elaborate rituals- performing repetitive , magically protective acts, such as counting or touching a body part.
  • Repetitive checking to ensure that certain acts are carried out.

OCD tends to begin either before age 10 or else in late adolescence/early adulthood.
Slightly more common among women than men.
The pattern of symptoms appears to be similar across cultures.
High comorbidity.

DSM-5 criteria for Obsessive-compulsive disorder

  • Obsessions or compulsions
  • Obsession are defined by
    • Recurred, intrusive, persistent, unwanted thoughts, urges or images
    • The person tries to ignore, suppress, or neutralize the thoughts, urges, or images
  • Compulsions are defined by
    • Repetitive behaviors or thoughts that the person feels compelled to perform to prevent distress or a dreaded event.
    • The person feels driven to perform the repetitive behaviors or thoughts in response to obsessions or according to
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Dissociative disorders and somatic symptom- related disorders - summary of chapter 8 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Dissociative disorders and somatic symptom- related disorders - summary of chapter 8 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 8
Dissociative disorders and somatic symptom- related disorders


Introduction

Both types of disorders are hypothesized to be associated with stressful experiences, yet symptoms do not involve direct expressions of anxiety.

  • In the dissociative disorders, the person experiences disruptions of consciousness. He or she loses track of self-awareness, memory, and identity
  • In the somatic related disorders, the person complains of bodily symptoms that suggest a physical defect or dysfunction, sometimes dramatic in nature. For some of these, no physiological basis can be found, and for others, the psychological reaction to the symptoms appear to be excessive.

Dissociative and somatic symptom-related disorders tend to be comorbid.

Dissociative disorders

The DSM-5 includes three major dissociative disorders:

  • Dissociative amnesia
  • Depersonalization/derealization disorder
  • Dissociative identity disorder

The dissociative disorders are all presumed to be caused by a common mechanism, dissociation. Which results in some aspect of cognition or experience being inaccessible consciously.

Dissociation and memory

Psychodynamic theory suggests that in dissociative disorder traumatic events are repressed.
In this model, memories are forgotten because they are so aversive.

Memory for emotional relevant stimuli is enhanced by stress, while memory for neutral stimuli is impaired.

Dissociative disorders involve unusual ways of responding to stress.
Extremely high levels of stress hormones could interfere with memory formation.
In the face of severe trauma, memories may be stored in such a way that they are not accessible to awareness later when the person has returned to a more normal state.
Dissociative disorders are considered an extreme outcome of this process.

Dissociative amnesia

The person with dissociative amnesia is unable to recall important personal information, usually information about some traumatic experience.
The holes in memory are too extensive to be explained by ordinary forgetfulness.
The information is not permanently lost, but it cannot be retrieved during the episode of amnesia, which may last for as short a period as several hours, or as long as several years.
The amnesia usually disappears as suddenly as it began, with complete recovery and only a small change of recurrence.

Most of the memory loss involves information about some part of a traumatic experience.
More rarely the amnesia is for entire events during a circumscribed period of distress.
During the period of amnesia, the person’s behavior is otherwise unremarkable, except that the memory loss may cause some disorientation.

In a more severe sub-type of amnesia, fugue, the memory loss is more extensive.
The person not only becomes totally amnesic but suddenly leaves home and work.
Recovery is usually complete, although it takes various amounts of time.
After recovery, people are fully able to remember the details of their life and experiences,

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Schizophrenia - summary of chapter 9 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Schizophrenia - summary of chapter 9 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 9
Schizophrenia


Schizophrenia: a disorder characterized by disturbances in thought, emotion and behavior.

>1% prevalence
Slightly more men than women.
Sometimes develops in childhood, but usually appears in late adolescence or early adulthood
people with schizophrenia typically have a number of episodes of their symptoms and less severe but still debilitating symptoms between episodes.

Clinical descriptions of schizophrenia

The range of symptoms in the diagnosis of schizophrenia is extensive, although people with schizophrenia typically have only some of these problems at any given time.
No single essential symptom must be present for a diagnosis of schizophrenia.

Researchers divided symptoms in three

  • Positive symptoms
    Delusions, hallucinations
  • Disorganized symptoms
    Disorganized behavior, disorganized speech
  • Negative symptoms
    Avolition, alogia, anhedonia, blunted affect, asociality

DSM-5 criteria of schizophrenia

  • Two or more of the following symptoms for at least 1 month; one symptom should be either 1, 2, or 3:
    1. delusions
    2. hallucinations
    3. disorganized speech
    4. disorganized (or catatonic) behavior
    5. negative symptoms (diminished motivation or emotional expression)
  • Functioning in work, relationships, or self-care has declined since onset
  • Signs of disorder for at least 6 months; or, if during a prodromal or residual phase, negative symptoms or two or more of symptoms 1-4 in less severe form.

Positive symptoms

Positive symptoms comprise excesses and distortions, such as hallucinations and delusions.
For the most part, acute episodes of schizophrenia are characterized by positive symptoms.

Delusions

Delusions: beliefs contrary to reality and firmly held in spite of disconfirming evidence.
Common symptoms in schizophrenia.

Delusions take several forms including:

  • Thought insertion: the belief that thoughts that are not his or hers own have been placed in his or her mind by an external force.
  • Thought broadcasting: the believe that his or her thoughts are broadcast or transmitted, so that other know what the person is thinking
  • The believe that an external force controls his or her feelings or behaviors
  • Grandiose delusions: an exaggerated sense of his or her own importance, power, knowledge, or identity.
  • Ideas of reference: incorporating unimportant events within a delusional framework and reading personal significance into the trivial activities of others.

Delusions are also found in other diagnoses,

  • Bipolar disorder
  • Depression with psychotic features
  • Delusional disorder

Hallucinations and other disturbances of perception

Hallucinations: sensory experiences in the absence of any relevant information for the environment.
More often auditory than visual.

Negative symptoms

The negative symptoms of schizophrenia consists of behavioral deficits.
Include:

  • Avolition
  • Asociality
  • Anhedonia
  • Blunted affect
  • Alogia

Negative symptoms tend to endure beyond an acute episode and have profound

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Substance use disorders - summary of chapter 10 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Substance use disorders - summary of chapter 10 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 10
Substance use disorders


Clinical descriptions, prevalence, and effects of substance use disorders

Prevalence adolescents: 9,3 to 10 percent.

Addiction: a more severe substance use disorder that is characterized by having more symptoms, tolerance, and withdrawal, by using more of the substance than intended, by trying unsuccessfully to stop, by having physical or psychological problems made worse by the drug, and by experiencing problems at work or with friends.

Tolerance: indicated by either:

  • Larger doses of the substance being needed to produce the desired effect
  • The effects of the drug becoming markedly less if the usual amount is taken.

Withdrawal: the negative physical and psychological effects that develop when a person stops taking the substance or reduces the amount.

 

DSM-5 criteria for substance use disorder

  • Problematic pattern of use that impairs functioning. Two or more symptoms within a 1-year period:
    • Failure to meet obligations
    • Repeated use in situations where it is physically dangerous
    • Repeated relationship problems
    • Continued use despite problems caused by the substance
    • Tolerance
    • Withdrawal
    • Substance taken for a longer time or in greater amounts than intended
    • Efforts to reduce or control use do not work
    • Much time spent trying to obtain the substance
    • Social, hobbies, or work activities given up or reduced
    • Craving to use the substance is strong

Alcohol use disorder

Delirium tremens (DTs): when the level of alcohol in the blood drops suddenly.

Liver enzymes that metabolize alcohol can account to a small extent for tolerance. The central nervous system is responsible as well.
Tolerance results from changes in the number or sensitivity of GABA or glutamate receptors. Withdrawal may result because some neural pathways increase their activation to compensate for alcohol’s inhibitory effects in the brain.

Alcohol use disorder is often part of polydurg abuse.
Polydrug abuse: abusing ore than one drug at a time.

Alcohol and nicotine are cross-tolerant; nicotine can induce tolerance for the rewarding effects of alcohol and vice versa.
Consumption of both drugs may be increased to maintain their rewarding effects.

Prevalence and cost of alcohol abuse and dependence

No yet prevalence estimates.
Especially frequent among college-age adults.

Binge drinking: having five drinks in a short period of time
Heavy-use drinking: having five drinks on the same occasion five or mire times in a 30-day period.
Among college students, binge drinking and heavy-use prevalence rates are 43,5 and 16 percent.

Binge drinking can have serious consequences

  • Alcohol related incidents
  • Assaults

More men than women have problems with alcohol, though

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Eating disorders - summary of chapter 11 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Eating disorders - summary of chapter 11 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 11
Eating disorders


Clinical description of eating disorders

Anorexia nervousa

DSM-5 criteria for anorexia nervousa

  • Restriction of food that leads to very low body weight; bodyweight is significant below normal
  • Intense fear of weight gain
  • Body image disturbance

Amenorrhea: loss of menstrual period

Two types of anorexia nervosa:

  • Restricting type
    Weight loss is achieved by severely limiting food intake
  • Binge-eating/ purging type
    The person has also regularly engaged in binge eating and purging.

Typically begins in the early to middle teenage years, often after an episode of dieting and the occurrence of life stress.
Lifetime prevalence: less than one percent
10 time more frequent in women than in men.

  • Women with anorexia are frequently diagnosed with depression, obsessive-compulsive disorder, phobias, panic disorder, substance use disorder, and various personality disorders.
  • Men with anorexia nervosa are also likely to have a diagnoses of a mood disorder, schizophrenia, or substance use disorder.

Suicide rates are quite high for people with anorexia

Physical consequences of anorexia nervosa

Self-starvation and use of laxatives produce numerous undesirable biological consequences in people with anorexia nervosa.

  • Blood pressure falls
  • Heart rate slows
  • Kidney and gastriontestinal problems
  • Bone mass declines
  • Skin dries out
  • Nails become brittle
  • Hormone levels change
  • Mild anemia may occur
  • some people loose hair, and they may develop lanugo, a fine, soft hair on their bodies.
  • Levels of electrolytes are altered. These are essential to neural transmission, and lowered levels can lead to
    • Tiredness
    • Weakness
    • Cardiac arrhythmias
    • Sudden death

Prognosis

Between 50 and 70 percent of people with anorexia eventually recover.
Recovery often takes 6 to 7 years, and relapses are common before a stable pattern of eating and weight maintenance is achieved.

Anorexia nervosa is a life-threatening illness.

Bulimia nervosa

DSM-5 criteria for bulimia nervosa

  • Recurrent episodes of binge eating
  • Recurrent compensatory behaviors to prevent weight gain, for example, vomiting
  • Body shape and weight are extremely important for self-evaluation

Involves episodes of rapid consumption of a large amount of food, followed by compensatory behavior, such as vomiting, fasting, or excessive exercise, to prevent weight gain.

Binge has two characteristics:

  • It involves eating and excessive amount of food within a short period of time
  • It involves a feeling of losing control over eating

Bulimia nervosa is not diagnosed if the bingeing and purging occur only in the context of anorexia nervosa and its extreme weight loss.
The diagnoses in such a case is anorexia nervosa, binge-eating/purgning type.

The key difference between anorexia and bulimia is weight loss.
People with bulimia do not lose a

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Sexual disorders - summary of chapter 12 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Sexual disorders - summary of chapter 12 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 12
Sexual disorders


Sexual dysfunctions are defined by persistent disruptions in the ability to experience sexual arousal, desire, orgasm, or by pain associated with intercourse.
Paraphilias are defined by persistent and troubling attractions to unusual sexual activities or objects.

Sexual norms and behavior

Definitions of what is normal or desirable in human sexual behavior vary with time and place.
Culture influences attitudes and beliefs about sexuality.

Gender and sexuality

Women tend to be more ashamed of any flaws in their appearance than do men, and this shame can interfere with sexual satisfaction.
For women, sexuality appears to be more closely tied to relationship, status, and social norms than for men.
Among women with sexual symptoms, more than half believe their symptoms are caused by relationship problems. Men are more likely to think about their sexuality in terms of power than are women.

There are many parallels in men’s and women’s sexuality.

  • The primary motivation for having sex was sexual attraction and physical gratification.

The sexual response cycle

Four phases in the human sexual response cycle

  1. Desire phase
  2. Excitement phase
  3. Orgasm phase
  4. Resolution phase

Sexual dysfunctions

Sexuality usually occurs in the context of an intimate personal relationship.
Our sexuality shapes at least part of our self-concept.
When sexual problems emerge, they can wreak havoc on our self-esteem and relationships.

Clinical descriptions of sexual dysfunctions

The DSM-5 divides sexual dysfunctions into three categories:

  • Involving sexual desire, arousal, and interest
  • Orgasmic disorders
  • Sexual pain disorders

Separate diagnoses are provided for men and women.

The diagnostic criteria for all sexual dysfunction specify that dysfunction should be persistent and recurrent and should cause clinically significant distress or problems with functioning.
A diagnoses of sexual dysfunction is not made it the problem is believed to be due entirely to a medical illness or another psychological disorder.

Many people with problems in one phase of the sexual cycle will often report problems in another phase. Some of this may just be a vicious circle.
Sexual problems in one person may lead to sexual problems in the partner.

Disorders involving sexual interest, desire, and arousal

DSM-5 criteria for Male hypoactive sexual desire disorder

  • Sexual fantasies and desires, as judged by the clinician, are deficient or absent for at least 6 months.

DSM-5 criteria for Erectile disorder

  • On at least 75 percent of sexual occasions for 6 months:
    • Inability to attain an erection, or
    • Inability to maintain an erection for completion of sexual activity, or
    • Marked decrease in erectile rigidity interferes with penetration or pleasure

DSM-5 criteria for Female sexual interest/arousal disorder

  • Diminished,
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Disorders of childhood - summary of chapter 13 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Disorders of childhood - summary of chapter 13 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 13
Disorders of childhood


Most theories of childhood disorder, consider childhood experience and development critically important to adult mental health.

Classification and diagnosis of childhood disorders

Before making a diagnosis of a particular disorder in children, clinicians must first consider what is typical for a particular age.

Some childhood disorders are unique to children.

The more prevalent childhood disorders are often divided into two broad domains,

  • Externalizing disorders
    Characterized by outward-directed behaviors
    • Attention-deficit/hyperactivity disorder
    • Conduct disorder
    • Oppositional defiant disorder
  • Internalizing disorders
    Characterized by more inward-focused experiences and behaviors
    • Childhood anxiety disorder
    • Mood disorders

Children and adolescents may exhibit symptoms form both domains.

Across cultures, externalizing behaviors are consistently found more often among boys and internalizing behaviors more often among girls, at least in adolescence.

Childhood disorders involve an interaction of genetic, neurobiological, and psychological factors.

Attention-deficit/hyperactivity disorder

Clinical descriptions, prevalence, and prognosis of ADHD

DSM-5 criteria for attention-deficit/hyperactivity disorder

  • Either A or B
  • A. Six or more manifestations of inattention present for at least 6 months to a maladaptive degree and greater that what would expected given a person’s developmental level, e.g., careless mistakes, not listening well, not following instructions, easily distracted, forgetful in daily activities
  • B. Six or more manifestations of hyperactivity-impulsivity present for at least 6 months to a maladaptive degree and greater than would be expected given a person’s developmental level e.g., fidgeting, running about inappropriately (in adults, restlessness), acting as is ‘driven by a motor’, interrupting or intruding, incessant talking.
    • Several of the above present before age 12
    • Present in two or more settings, e.g., at home, school, or work
    • Significant impairment in social, academic, or occupational functioning
    • For people age 17 or older, only five signs of inattention and/or five signs of hyperactivity-imupulsivity are needed to meet the diagnoses.

Although children with ADHD are usually friendly and talkative, they often miss subtle social cues.

Children with ADHD can know what the socially correct action is in hypothetical situations but be unable to translate this knowledge into appropriate behavior in real-life social interactions.

DSM-5 includes three specifiers to indicate which symptoms predominate

  • Predominantly inattentive: children whose problems are primarily those of poor attention
  • Predominantly hyperactive-impulsive: children whose difficulties result primarily from hyperactive/impulsive behavior
  • Combined: children who have both sets of problems

The combined specifier comprises the majority of children with ADHD.

A difficult differential diagnosis is between ADHD and conduct

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Late life and neurocognitive disorders - summary of chapter 14 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Late life and neurocognitive disorders - summary of chapter 14 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 14
Late life and neurocognitive disorders


Aging: issues and methods

As we age, physiological changes are inevitable, and there may be emotional and mental changes as well.
Many of these influence social interactions.

The problems experienced in late life

Mental health is tied to the physical and social problems in a person’s life.
No other have more of these problems than the elderly.

As people age, the quality of depth of sleep declines.
Sleep apnea: a disorder in which a person stops breathing for seconds to minutes during the night. Increase with old age.

Several problems are evident in the medical treatment available during late life.

  • The chronic health problems of older people seldom diminish.
  • Time pressure of the health care system.
    Polyharmacy: the prescribing of multiple drugs to a person. Can result.
  • Most psychoactive drugs are tested on younger people.

Research methods in the study of aging

Three kinds of effects:

  • Age effects:
    The consequences of being a certain chronological age
  • Cohort effects:
    The consequences of growing up during a particular time period with its unique challenges and opportunities.
  • Time-of-measure effects:
    Confounds that arise because events at a particular point in time can have a specific effect on a variable that is being studied.

Two major research designs

  • Cross-sectional
    The investigator compares different age groups at the same moment in time on the variable of interest.
  • Longitudinal studies
    The researcher periodically retests one group of people using the same measure over a number of years or decades.
    Selective mortality: when people are no longer available for follow-up because of death.

Psychological disorders in late life

The DSM criteria are the same for older and younger adults.
The process of diagnoses must be considered with care. DSM criteria specify that a psychological disorder should not be diagnosed if the symptoms can be accounted for by a medical condition or medication side effects.
Clinicians must be extremely careful to consider the interactions between physical and psychological health.

Estimating the prevalence of psychological disorders in late life

Persons over age 65 have the lowest overall prevalence of mental disorders of all age groups.

Mot people with psychological disorders in late life are experiencing a continuation of symptoms that began earlier.

Why so low?

  • Methodological issues
  • Might be some processes related to aging that promote better mental health

Methodological issues in estimating the prevalence of psychopathology

  • Methodologically, older adults may be more uncomfortable
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Personality disorders summary of chapter 15 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

Personality disorders summary of chapter 15 of Abnormal Psychology by Kring, Davison, Neale & Johnson (12th edition)

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Clinical psychology
Chapter 15
Personality disorders


The personality disorders are a heterogeneous group of disorders defined by problems in forming a stably positive sense of self and with sustaining close and constructive relationships.
People with personality disorders experience difficulties with their identity and their relationship in multiple domains of life, and these problems are sustained for years.
Their personality problems are evident in cognition, emotion, relationships, and impulsive control. The symptoms of personality disorders are pervasive and persistent.

Classifying personality disorders

The DSM-5 approach to classification

In the DSM-5, the 10 different personality disorders are classified in three clusters, reflecting the idea that these disorders are characterized by:

  • Odd or eccentric behavior
  • Dramatic, emotional or erratic behavior
  • Anxious or fearful behavior

Many people with psychological disorder will also experience a personality disorder.
Comorbid personality disorder are associated with more severe symptoms, poorer social functioning, and worse treatment outcomes for may conditions.

Diagnostic reliability

  • One issue in assessing personality disorders is whether people can accurately describe their own personalities.
  • Many of the personality disorders may not be as enduring as the DSM asserts.

Using structured interviews and multiple informants can improve reliability.

Comorbidity

Personality disorders tend to be comorbid with each other.

Alternative DSM-5 model for personality disorders

Reducing the number of personality disorders, incorporating personality trait dimensions, and diagnosing personality disorders on the basis of extreme scores on personality trait dimensions.

Two types of dimensional scores

  • 5 personality trait domains
  • 25 more specific personality trait facets.

Key strengths:

  • Richer sense of detail than do the personality disorder diagnoses
  • Personality traits tend to be more stable over time than are personality disorder diagnoses
  • Including personality traits help link the DSM with a broad research literature of personality

Alternative DSM-5 criteria for Personality disorder

  • Significant impairments in self and interpersonal functioning
  • At least one pathological personality trait domain or facet
  • Personality impairments are persistent and pervasive
  • Personality impairments are not explained by developmental stage, sociocultural environment, substance abuse, another psychological condition, or a medical condition.

Odd/eccentric cluster

Odd/eccentric cluster includes:

  • Paranoid personality disorder
  • Schizoid personality disorder
  • Schizotypal personality disorder

Paranoid personality disorder

DSM-5 criteria for Paranoid personality disorder

  • Presence of four or more of the following signs of distrust and suspiciousness, beginning by early adulthood and shown in many contexts
    • Unjustified suspiciousness of being harmed, deceived, or exploited
    • Unwarranted doubts about the loyalty or trustworthiness of friends or associates
    • Reluctance to confide in others because of suspiciousness
    • The tendency to read
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Introduction to clinical psychology
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