Introduction to Psychology – Interim exam 2

Introduction to Psychology - Interim exam 2

This bundle contains everything you need to know for the second interim exam of Introduction to Psychology for the University of Amsterdam. It uses the book "Psychology by P. Gray and D. F., Bjorkland (eight edition)". The bundle contains the following chapters:

- 10, 11, 12, 13, 14, 15, 16.

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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 10

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 10

An analogy refers to a similarity in behaviour, function, or relationship between entities or situations that are in other respects different from each other. The prefrontal cortex is involved in analogical reasoning. Analogical reasoning uses multiple areas in the prefrontal cortex, unlike simple semantic retrieval.

Inductive reasoning or induction is the attempt to infer some new principle or proposition from observations or facts that serve as clues. It is also called hypothesis construction. It is reasoning that is founded on perceived analogies or other similarities. Inductive reasoning is prone to several biases:

  1. Availability bias
    People tend to rely too strongly on information that is readily available to us and ignore information that is less available (e.g: people tend to believe that a lot of people die from shark attacks because it gets a lot of news coverage, but this is not correct).
  2. Confirmation bias
    People tend to look for information that confirms the hypothesis, rather than look for information that disproves the hypothesis.
  3. Predictable-world bias
    People tend to believe that there are patterns in the world that do not exist (e.g: in a game of chance people that have seen a certain card a few times tend to go for another card, even though the probability is just as high, because they feel like the first card can’t come up again).

Deductive reasoning is the attempt to derive logically the consequences that must be true if certain premises are accepted as true. There is a bias in deductive reasoning. This occurs when people tend to use their knowledge rather than formal knowledge in answering deductive reasoning questions.

Insight problems are problems that are specifically designed to be unsolvable until one looks at them in a different way. These problems are generally very difficult, because their solution depends on abandoning a well-established habit of perception or thought, referred to as a mental set, and then viewing the problem in a different way. There is a mental set known as functional fixedness, in which there is a failure to see an object as having a function other than its usual one. There is a design stance in which people assume that some tools are designed for an intended function. This leads to more user-efficiency. People solve insight problems best if they take some time off from the problem, do something else and come back to it. This is known as the incubation period.

The broaden-and-build theory states that negative emotions tend to narrow one’s focus of perception and thought. The understanding of what is expected of a participant in a test is culturally dependent. People from non-western cultures are also more likely to sort things by function instead of taxonomy. In cultures such as China and Japan, the reasoning is more holistic and less individually centred.

In the early ages of intelligence testing, the testing of intelligence was focussed on schoolwork, rather than other intelligence-related concepts, such as abstract thinking or logical reasoning. The first intelligence test commonly used in North America was the Stanford-Binet Scale. This intelligence test, tested verbal comprehension, perceptual processing, working memory and processing speed. This test gives you an IQ score as a result and the average IQ of the population is 100.

The strength of the correlation between performance on the job and IQ depends on the type of job. There is a positive correlation, but the correlation gets stronger with more demanding jobs.

The positive manifold holds that scores always correlate positively with one another if the sample Is large enough when giving different mental tests to people who are part of the same broad cultural group. General intelligence (g) is the underlying ability that contributes to a person’s performance on all mental tests. General intelligence is usually measured by getting the average of several mental tests, which is done in most IQ tests nowadays.

Cattell argued that general intelligence consists of two parts that correlate positively with each other:

  1. Fluid intelligence
    This is the ability to perceive relationships among stimuli independently of all previous specific practise or instruction concerning those relationships (e.g: finishing a pattern of not previous seen symbols). Tests in this category depend on ‘raw reasoning’.
  2. Crystallized intelligence
    This is the mental ability derived directly from previous experiences (e.g: a test of knowledge). Tests in this category depend on previously learned information.

There is a positive correlation between general intelligence and mental speed, the inspect time that is required to detect certain patterns. The working-memory span also positively correlates with general intelligence. People with higher general intelligence perform better on executive function tasks. It is possible that general intelligence has been selected during human evolution because it helps us deal with novel problems.

Heritability is the degree to which variation in a particular trait, within a particular population of individuals, stems from genetic differences as opposed to the environmental differences. This is often quantified by the heritability coefficient. It does not say anything about how much of any trait is due to genetic factors, only what percentage of the difference in a trait within a specific population can be attributed to inheritance. Heritability is relative, varying with the environmental conditions in which people within the population live.

Heritability=r identical twins-r nonidenticaltwins*2

When the heritability is 1.0, it means that the environment for everyone in the population is the same and the differences in the population are fully caused by differences in genes. If the heritability is 0.0, it means that the genes are exactly the same for everyone and all the differences are caused by differences in the environment.

The influences of families on intelligence exists, but this effect disappears in early adulthood because by then the individuals choose their own environment.

If there are two wheat fields, each planted from the same package of genetically diverse wheat seeds, but with different soils, then there will be big differences between the wheat fields, but the differences within a wheat field are determined by genes and not the differences between the wheat fields.

There is a difference in IQ scores in the United States between blacks and whites, because of the social designation of black and white. Besides that, there is a stereotype threat. Stereotypes of a race influence the results on an IQ test.

Involuntary or castelike minorities on average score lower on IQ scores, because they are treated differently by society, than voluntary minorities. The Flynn-effect is the effect that the average IQ rises 9 to 15 points every 30 years. This effect could occur because of the improvements in modern life. More people receive education, more people have intellectual demanding jobs and modern technology is also increasingly intellectually demanding.

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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 11

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 11

The prenatal period is divided into three phases:

  1. Zygotic phase (0-2 weeks)
    In this phase the sperm has just joined the egg, combining the genes.
  2. Embryonic phase (3-8 weeks)
    In this phase, all major organ systems develop.
  3. Foetal phase (9 weeks – birth)
    In this phase, the body grows and the organs are refined.

Teratogens are environmental agents that cause harm during prenatal development. The embryo is most susceptible to teratogens. Nutrition and maternal stress are involved in prenatal development. A child physically develops a lot during the early stages of life, especially during infancy and puberty. The head grows a lot first and then the body follows. This is called cephalocaudal development. The average age of menarche has decreased over the last couple of centuries, mainly because of better nutrition.

Infants show signs of habituation and dishabituation. An infant will look at novel stimuli longer than at familiar ones. If an infant is looking at a familiar object and is presented with a novel object, the viewing time is immediately increased. This is called dishabituation. Infants show an increased interest in objects that they can control.

Infants will first put everything in their mouth as a mean of exploring. From the age of 5 to 6 months, infants will start examining objects. They will use their hands and their eyes to look at objects. Here, the rule of habituation also applies. Infants learn about objects’ properties through examination.

The infants also respond to social cues. This can be seen in the phenomenon known as gaze-following and later in life, they will also see other people as intentional agents, individuals who cause things to happen. This is seen in infants of around 9 months of age when they engage in shared attention with another person. They pay attention to the thing the individual points at. Infants will also engage in social referencing. They will look at their caregiver’s emotional expression for clues about the possible danger of their actions.

If infants are shown events that don’t seem fitting with their ideas on the physical world, then they will look at it longer than events that do, showing that even infants have knowledge of core physical principles, such as that unsupported things should fall down.

Piaget argues that infants don’t have a sense of object permanence, which is shown by his simple-hiding experiment, but it may have something to do with having to act on the object, as the infants do show a sense of object-permanence if they only have to look at certain objects, instead of acting on them.

There are three general theories of children’s mental development, starting with Piaget.

Piaget: Mental development derives from the children’s own actions on the physical environment. Children develop schemes, mental blueprints for actions. A scheme is something that a child can do with an object or a category of objects. The growth of schemes involves two complementary processes:

  1. Assimilation
    This is the process by which new experiences are incorporated into existing schemes.
  2. Accommodation
    This is the process by which existing schemes expand or change somehow to accommodate the new object or event.

Children behave like little scientists and maximise their own mental growth. Operations are actions that can be reversed by other actions. These actions are the most conducive to the mental development of children. They eventually develop operation schemes.             

In Piaget’s theory, there are four stages of development:

  1. Sensorimotor stage
    Thought and actions are the same.
  2. Pre-operation stage
    Children are now able to use symbols and there are no relations between observations (e.g: volume and width).
  3. Concrete-operational stage
    There are relations between observations. Thinking is egocentric, everything the children know must apply to everyone. Children start to think about reversible consequences of actions.
  4. Formal-Operational stage
    Children learn abstract principles that apply to a wide variety of objects, also known as formal-operational schemes. They can think about thinking and think about things that ‘could be’.

The knowledge that an entity can stand for something other than itself is representational insight. Centration is fixing the vision on one property of an object and decentration is viewing everything at the same time (e.g: one tall and one wide glass contain the same amount of water).

Vygotsky states that development first occurs at the social level and then at the individual level. People learn to converse with words before they learn to think with words. The zone of proximal development is the realm of activities that a child can do in collaboration with more competent others, but cannot yet do alone. Scaffolding occurs when experts are sensitive to the abilities of a novice and provide responses that guide the novice to gradually increase the understanding of a problem. In Vygotsky’s view, a child is like an apprentice.

The information-processing perspective explains children’s mental development in terms of operational changes in basic components of their mental machinery. Infants are able to form implicit memories, but not explicit memories, because young children must develop the ability to encode their experiences into words before they a form episodic and thus explicit memories. Deferred imitation refers to reproducing the behaviour of a model some significant time after watching the model. Deferred imitation requires symbolic representation.

Executive functions, working memory, inhibition and switching improve steadily throughout childhood. The working memory improves fast but children find it often very difficult to inhibit their speech or to switch between tasks. This improves over the years. The mental-processing speed also increases over the years and is linked to physical maturation and maturation of the brain.

The theory of mind is attributing emotions, motives, feelings, desires, goals, perceptions and beliefs to people and using these attributes to explain their actions. Children are quick to learn that people may want something different than what they want (e.g: 2-year-olds will give broccoli over crackers to an adult if the adult had previously said that he liked broccoli, even though the 2-year old’s preference was crackers). Children have greater difficulty in understanding that someone’s beliefs may be different from their own belief and understanding that someone can believe something that is not true. Young children think that everyone knows what they know (and thus they are unable to fool people).

Young children do understand pretence (pretend play). The difference between pretence and false beliefs are that in pretence everyone knows that is not in compliance with reality, wherewith false beliefs people actually think that it is in compliance with reality.

People with autism or autism spectrum disorder (ASD) are to some degree oblivious to the minds of others. People would serve the same function to you as inanimate objects or machines.

Human language is symbolic and grammatical. The symbols in a language are called morphemes, defined as the smallest meaningful units of a language. Morphemes are both arbitrary and discrete. They are arbitrary in that no similarity need exists between its physical structure and that of the object or concept for which it stands. A morpheme is discrete in that it cannot be changed in a graded way to express gradations in meaning. Morphemes can be broken down into elementary vowel and consonant sounds called phonemes.

All languages are in a way hierarchical, with the sentence up top, and the phonemes all the way down. The rules of a language are called grammar. Grammar consists of rules of phonology, which specifies how phonemes can be combined to form morphemes, morphology, which specifies how morphemes can be combined to form words and rules of syntax, which specify how words can be arranged to produce phrases and sentences.

Grammar is learned implicitly. We use it every day, but (most of us) can’t state all the rules, so it is implicit rather than explicit. Infants that are 6 months old begin to learn to discriminate between phonemes that are different in their own language (e.g: English), but become worse at discriminating phonemes that are not different in their own language (but could be in a different language). Word comprehension precedes word production in infants.

Mutual exclusivity assumption refers to the tendency of young children to link new words with objects for which they do not already know a name. Syntactic bootstrapping is using tactic knowledge of grammar to help them infer the meaning of new words, including verbs and other parts of speech as well as nouns. Taxonomic assumption happens when children learn a new word and they use the word for things that are perceptually similar.

Humans are biologically prepared for language, because we are born with the proper anatomical structures in the throat, brain areas specialized for language, a preference for listening to speech and an ability to distinguish among the basic speech sounds of any language and mechanisms that cause us to exercise oud vocal capacities through a period of cooing and babbling.

Specific grammatical rules vary from language to language, they are all based on certain fundamental principles referred to as universal grammar, that are innate properties of the human mind. The term language-acquisition device refers to the entire set of innate mental mechanisms that enable a child to acquire language quickly and efficiently.

A pidgin language is a language without grammar. A full language with grammatical rules is called a creole language.

Evidence for the LAD comes from patients with brain damage, the development of pidgin languages into creole languages and the fact that deaf people are able to come up with grammar themselves. The most critical period for learning grammar-based languages are in the first ten years of life.

Normal language development requires not just the LAD but also the LASS, the language acquisition support system, provided by the social world in which the baby is born. When someone is speaking to an infant, it is often different than when speaking to an adult and this is known as infant-directed speech. This helps the infant learn the language more easily. 

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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 12

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 12

 

As infants, we depend physically and emotionally on adult caregivers. As children, we learn to get along with others and to abide by the rules and norms of society. As adolescents, we begin to explore romantic relationships and consider how we will take our place in the adult world. As adults, we assume responsibility for the care and support of others and contribute, through work, to the broader society.

The bond between infant and parent is promoted by innate tendencies: the infant to cry and the parent to help. Infants prefer their caregivers and react to their caregivers and in that way, the infants take an active role in building emotional bonds between themselves and those on whom they most directly depend. Attachment refers to emotional bonds.

The experiments of Harlow with monkeys provided a lot of evidence for the contact comfort theory, in which the bond between mother and infant is promoted by the warmth and comfort of the mother. Bowlby’s evolutionary explanation of the fact that infants between 8 months and 3 years old are distressed when their caregivers are out of sight is that infants who were in their mother's sight were an evolutionary advantage in the past. Evidence for this comes from the fact that similar behaviours occur in all human cultures and in other species of mammals.

There are four types of attachment and this can be assessed by the strange situation test, in which the mother suddenly leaves the room leaving the child either by itself or with a stranger.

  1. Secure attachment (60%)
    These infants actively explore the environment with their mothers present and become distressed when their mother leaves.
  2. Insecure-resistant attachment (10%)
    These infants appear anxious even with their mothers present and don’t explore much. They become very distressed when their mother leaves, but display anger towards the mother upon return.
  3. Insecure-avoidant attachment (15%)
    These infants appear anxious even with their mothers present and don’t explore much. They show little distress when the mother leaves and when the mother returns they avoid contact.
  4. Disorganized/disoriented attachment (15%)
    These infants don’t fit the other categories and have mixed reactions to either the departure or the reunion of the mother.

Sensitive care is the behaviour in which the infant’s signals of distress are responded to promptly and the infants receive regular contact comfort and interact with the infant in an emotionally synchronous manner. Sensitive care correlates with secure attachment and the children that are securely attached were more likeable people later in life, as well as better at problem-solving and emotionally healthier. Children that have a certain homozygous gene are less affected by environmental experiences.

There are three successive stages in a child from age 1 – 12: autonomy, initiative and industry. Prosocial behaviour is voluntary behaviour intended to benefit other people. There are three aspects of young children’s prosocial behaviour:

  1. Helping
    An infant from about 12 months old will randomly start to give out objects in games of give-and-take, will help the adults any way they can and they always want to help.
  2. Comforting
    An infant will start to cry when other infants are crying. Until the age of 15 months, the infant’s distress when others are distressed is referred to as egocentric distress because they look for comforting themselves. At about 15 months the infant will respond to distress by attempting to comfort them.
  3. Sharing
    The extent to which children share increases with age. Sharing in young children is especially common in situations in which they need to collaborate to achieve a goal.

The development of empathy causes prosocial behaviour to be based on the understanding of and concern for other’s needs and feelings. Children of about age 2 and younger frequently engage in emulation, using different means to achieve the same goal. Later in life, they start with imitation, copying actions exactly and start with overimitation, copying all actions exactly, even if some actions are irrelevant. Preschool children do not often deliberately teach a skill to another child. It is more common for a child to happen to see the outcome of another child’s actions.

Parenting styles are described in terms of two dimensions: the degree of warmth a parent shows toward a child, reflected by being loving and attentive to children and their needs and the degree of control a parent attempts to exert over a child’s behaviour. Parenting style can be divided into four general types depending on where a parent falls on these two dimensions:

  1. Authoritarian (low warmth, high control)
    There is extensive use of power
  2. Authoritative (high warmth, high control)
    The reason for the desired behaviour is explained. If the reason is not effective, use force.
  3. Permissive (high warmth, low control)
    Little correction of undesired behaviour
  4. Uninvolved (low warmth, low control)
    Not asking for anything, not giving anything.

Research found that the children of authoritative parents exhibited the most positive qualities. Evidence that parenting style influence children’s development comes from experiments that modify, through training, the styles of one group of parents and then compare their offspring to those of otherwise similar parents.

The evolutionary explanation that a child’s focus on peers is mostly because of future reproduction. Children across all cultures play and this play is mostly gender-segregated. Play serves as a possibility to develop skills. It also serves the function of learning an advanced understanding of rules, social roles and greater self-control. It also helps with the learning and understanding of society’s morals.

There is a difference between play between children that have a similar age and play between children that have a range of ages. Play between children that have a similar age is very competitive and this is not the case with play between children that have a range of ages. Younger children learn from older children through play and older children practice their nurturing skills through play with younger children. It also helps older children consolidate some of their knowledge by helping younger children.

There are gender differences between infants. Newborn boys are more irritable and less responsive to caregiver’s voices and faces than newborn girls. Boys from 6 months old also show anger more often than girls. By 13 to 15 months girls are more obedient than boys and this stays this way. By 17 months, boys show significantly more physical aggression than girls.

These differences could be explained by the way boys and girls are treated. The differences in treatment start at birth. By the age of 4 or 5, most children have learned strong cultural stereotypes for males and females. By this age, they also develop a gender identity, an understanding that they are one gender and will always be this gender. Young children often overgeneralize gender differences, with this being more extreme in boys than in girls. Children prefer to play with children of their own sex, although this preference is stronger in boys than in girls. In the segregated playgroups, boys often practice what they perceive to be masculine activities of their culture and the girls do it the other way around. Children sometimes reinforce gender segregation by ridiculing those who cross gender lines.

Girls and boys tend to play differently as well as separately. The world of boys has been characterized as consisting of relatively large, hierarchically organized groups in which individuals or coalitions attempt to prove their superiority through competitive games, teasing and boasting. The world of girls has been characterized as consisting of smaller, more intimate groups, in which cooperative forms of play predominate and competition is more subtle. Boys and girls play together more often in age-mixed groups.

Adolescence is the transition period from childhood to adulthood. It starts with puberty and ends when society deems the person an adult. In the stage of development emerging adulthood, a person has the independence of an adult but does not see himself like one yet.

The teenage rebellion typically occurs over immediate control that the parent still has over the teenager. Adolescence is often marked by conflicts centring parental authority. Children go to their parents for emotional support and this gradually declines. Adolescents mostly go to their peers for emotional support. Adolescents take more risks in life than any other age group. There are several theories for this:

  1. Moffit’s theory
    The reason that adolescents take more risks is that adolescents are biologically adults and want to enter the adult world in any way available and crimes, sex and drugs is a way for them.
  2. Harris’ theory
    This theory states that this risk-taking is not to join the adult world, but to set themselves apart from it.
  3. Steinberg’s theory
    There is a competition between two developing brain systems, the cognitive-control network and the socioemotional network. The socioemotional network becomes dominant under conditions of emotional or social arousal or when in the presence of peers.

The increased risk-taking in mostly adolescent males is also called the young-male syndrome. There is a possible evolutionary explanation for this. In our species’ history, males who took risks to achieve higher status among their peers may well have produced more offspring, so genes that promoted this tendency have been passed along more.

Adolescence is also a period of rapid growth in the sophistication of moral reasoning and a time in which many people develop moral self-images that guide their actions. Kohlberg states that there are several stages of moral reasoning:

  1. Obedience and punishment orientation
    Reasoners in this stage focus on direct consequences to themselves.
  2. Self-interested exchanges
    Reasoners in this stage understand that different people have different self-interests, which sometimes come into conflict. To get what you want, you have to make a bargain.
  3. Interpersonal accord and conformity
    Reasoners in this stage try to live up with the expectations of others who are important to them.
  4. Law-and-order morality
    Reasoners in this stage argue that to maintain social order, each person should resist personal pressures and feel duty-bound to follow the laws and conventions of the larger society.
  5. Human-rights and social-welfare morality
    Reasoners in this stage balance their respect for laws with ethical principles that transcend specific laws.

Moral reasoning is not the same as moral action. In adolescence there is a development of sexual attraction and a sexual-minority development; people start to identify their sexuality. Also, sexually transmitted diseases and pregnancy are relatively high in adolescence, compared to other age groups. Males are more eager to have sexual intercourse without a long-term commitment and this can be explained in terms of parental-investment.

Natural selection may have predisposed humans to be sensitive to cues in the childhood that predict whether one or the other sexual strategy (restraint vs. promiscuity) will be more successful. One such cue may be the presence or the absence of a caring father at home.

People in love typically experience distress when the other leaves, either temporarily or permanently. When an individual’s partner leaves, an individual typically experiences intense anxiety, depression and feelings of loneliness and emptiness that is not relieved even by highly supportive friends and active social life. The attachment that adults form with romantic partners can be classified as secure, anxious and avoidant. Bowlby's theory states that people form mental models of close relationships based on their early experiences with their primary caregivers and then carry those models into their adult relationships.

There are some relationship patterns that can be changed for the better if the couple is willing to work on them:

  1. Positive style of talking and resolving arguments (e.g: avoid yelling and name-calling).
  2. An effort to communicate when you disagree (e.g: don’t give the silent treatment).
  3. Handle disagreements as a team (e.g: capitalize on each other’s strengths to resolve conflicts).
  4. Honesty with self and partner

Jobs are perceived as the least stressful if they are:

  1. Complex, rather than simple
  2. Varied, rather than routine
  3. Not closely supervised

The paradox of old age is the following. Objectively, life looks worse in old age, subjectively, it feels better. The socioemotional selectivity theory states that older people shift their attention to the present moment, instead of the future, and this causes older people to enjoy life more, despite the losses that old age brings. Older people attend to more positive emotional stimuli than negative emotional stimuli. This is called the positivity bias.

Terminally ill people will generally go through five stages upon hearing the news:

  1. Denial
  2. Anger
  3. Bargaining
  4. Depression
  5. Acceptance
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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 13

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 13

 

Humans are ‘natural psychologists’. This has an evolutionary explanation: people can help us or hurt us and we want to find out their intention. Attribution is a claim about the cause of someone’s behaviour. It is possible to attribute the cause of someone’s behaviour to two things:

  1. Person
    We can view the person and the person’s personality as the cause of the behaviour (e.g: if someone is often late, we can say that that person is always late).
  2. Behaviour
    We can view the situation as the cause of someone’s behaviour (e.g: someone running away in fear can be explained by the tiger running after him).

There are three questions one can ask himself to determine whether the attribute has to be about the situation of about the person:

  1. Does this person regularly behave this way in this situation?
  2. Do many other people regularly behave this way in this situation?
  3. Does this person behave this way in many other situations?

People give to much weight to personality and not enough to the environmental situations when they make attributions about other’s actions. This is also called person bias. Or the fundamental attribution error. People also have the tendency to attribute success to themselves and attribute failure to the situation. Person bias occurs mainly in western countries.

There are several biases that arise from the perception of facial features:

  1. Attractiveness bias
    Attractive people are perceived more positively than ugly people.
  2. Baby-face bias
    People with a so-called ‘baby face’ are perceived as more honest, warm and helpless.

People that meet each other on the internet before meeting each other face-to-face like each other more than people that just meet each other face-to-face, because meeting over the internet reduces social anxiety. It also allows people to be their ‘true-self’ and frees people from biases that arise from physical attractiveness.

Self-concepts refer to the way that a person defines him- or herself. According to Cooley, we create our self-image based on what others think of us. He introduced the term looking glass self. The beliefs and expectation that others have of a person, whether true or false, can to some degree create reality by influencing that person’s self-concept and behaviour. These effects are called self-fulfilling prophecies or Pygmalion effects. Someone’s expectation can affect someone’s behaviour and self-image.

Self-esteem is one’s feeling of approval, acceptance and liking of oneself. The sociometer theory states that we derive our self-esteem from others’ attitudes towards us and that self-esteem reflects your best guess about the degree to which other people respect and accept you. From an evolutionary perspective, other people’s views of us matter a great deal, because our survival depends on it.

The process of comparing ourselves with others in order to identify our unique characteristics and evaluate our abilities is called social comparison (e.g: we ourselves as tall if we are tall compared to others). A direct consequence of social comparison is that the self-concept varies depending on the reference group, the group against whom the comparison is made. People identify themselves largely in terms of the ways in which they perceive themselves to be different from those around them.

Adults often overestimate their own abilities and this is called the positive illusory bias. The self-serving attributional bias is the tendency to attribute our successes to our own inner qualities and our failures to external circumstances.

An attitude is any belief or opinion that has an evaluative component (e.g: an attitude towards Trump is a negative attitude). There are two types of attitudes:

  1. Implicit attitudes
    These attitudes are manifested in automatic mental associations.
  2. Explicit attitudes
    These attitudes are conscious, verbally states evaluations.

Implicit attitudes are measured using implicit association tests, which are based on the fact that people can classify two concepts together more quickly if they are already strongly associated with the mind. An individual’s implicit memory wins it unless an individual consciously thinks about it.

The cognitive dissonance theory states that our mind creates an uncomfortable feeling of dissonance when we sense some inconsistency among the various explicit attitudes, beliefs and items of knowledge that constitute our mental store. Cognitive dissonance can be undone by changing your attitude towards something. Cognitive dissonance is often avoided by people and this is a prime example of the confirmation bias.

Cognitive dissonance also arises when an individual’s action opposes one’s attitude. If there is not enough justification for that action that opposes one’s attitude, the insufficient-justification effect may arise, where people change their attitude in order to justify the behaviour.

Self-descriptions that pertain to the person as a separate individual are referred to as personal identity. Self-descriptions that pertain to the social categories or groups to which the person belongs are referred to as social identity. When we view others in terms of personal identity, we see them as unique individuals and when we view others in terms of social identity, we view them as similar to other members of the group (e.g: all skinheads are similar to each other). This is specifically true for members of out-groups, groups to which we don’t belong. In-groups are groups to which we belong.

The schema or organized set of knowledge or beliefs about any group of people is referred to as a stereotype. There are three levels of stereotypes

  1. Public stereotypes (explicit)
    This is what we say to others about a group.
  2. Private stereotypes (explicit)
    This is what we think of a group but don’t say to others.
  3. Implicit stereotypes
    These stereotypes are sets of mental associations that operate more or less automatically to guide our judgements and actions toward members of a group, even if those associations run counter to our conscious beliefs.

Implicit prejudices are based on primitive emotional processes modifiable by classical conditioning.

Social pressure is a set of psychological forces that are exerted on us by others’ judgements. Being observed affects how well people perform tasks:

  1. Social facilitation
    Observation improves performance in simple tasks
  2. Social interference
    Observation decreases performance in complex tasks

The presence of others facilitates the performance of dominant actions and interferes with performance of nondominant actions. Choking under pressure is the highly aroused mental state in which people perform worse, because of pressure. This is especially likely to occur with tasks that make strong demands on working memory. The pressure interferes with the concentration and this causes the performance to worsen.

Stereotype threat is the threat that test-takers experience when they are reminded of the stereotypical belief that the group to which they belong is not expected to do well on the test. Impression management refers to the entire set of ways by which people consciously and unconsciously modify their behaviour to influence others’ expression of them. People conform because of two reasons:

  1. Informative influence
    People may know something we don’t and we conform because of the information we receive, rather than trying it out ourselves.
  2. Normative influence
    This promotes group cohesion and acceptance by the group; we conform to the norm of the group (e.g: saying a stick is smaller than you think it is, because of the norm of the group).

The passive bystander effect is an effect that occurs when someone needs help in the presence of a lot of people. If there are a lot of people present when someone needs help, the individual that needs help is less likely to receive that help than when he’s alone. This is because of the shared responsibility, the more people, the less responsibility you have and the social norm, no one helps, so you shouldn’t either, because you don’t want to stand out of the crowd.

A group tends to automatically mimic one another’s postures, mannerisms and styles of speech. This causes individuals in a social group to become like one another.

The phenomenon group polarization occurs when the large majority of everyone in a group argues on the same side of the issue, discussion typically pushed that majority towards a more extreme view in the same direction as their initial view, whereas a split group tends to get a more moderate view. Groupthink is a mode of thinking that people engage in when they are deeply involved in a cohesive in-group when the members’ striving for unanimity overrides their motivation to realistically appraise alternative courses of action. The ability of groups to make effective decisions and solve problems is improved if leaders refrain from advocating a view themselves and instead encourage group members to present their own views and challenge one another. Also, if the groups focus on the problem to be solved rather than on developing group cohesion.

People tend to comply automatically to a direct request (if the request is small and asked politely), we tend to honour requests of people who have done thins for us, this is the norm of reciprocity and we are more apt to honour a request from someone who is a member of our in-group. There are several techniques to exploit people’s tendency to comply:

  1. Low-ball technique
    If a low-price is agreed upon and the price rises, people tend to buy it anyway, in order to reduce cognitive dissonance.
  2. Foot-in-the-door technique
    People are more likely to agree to a large request if they already agreed to a small one.

Obedience refers to those cases of compliance in which the requester is perceived as an authority figure or leader and the request is perceived as an order. There are a number of social factors that contribute to the psychological pressure to obey in Mill’s experiments:

  1. The norm of obedience to legitimate authorities
    People tend to honour requests of legitimate authorities
  2. The experimenter’s self-assurance and acceptance of responsibility
    If people have the idea that they are not responsible for the consequences, they are more likely to comply with requests.
  3. The proximity of the experimenter and the distance of the learner
    Physical distance plays a key role in obedience.
  4. The absence of an alternative model of how to behave
    If there are no alternative models of how to behave, people tend to comply quicker.
  5. The incremental nature of the requests
    The requests start off relatively normal and get increased a little by a little.

There are several critiques on Milgram’s experiments:

  1. Ethical critique
  2. The question of generalizability to real-world crimes of obedience
    It might not be possible to draw general conclusions from this experiment.

Social dilemmas are dilemmas where you have to choose between action for the group’s interest or for your own interest. There are several reasons for a person to choose for cooperation:

  1. Reputation
    Reputation is important in making the decision to cooperate, as this influences your future results.
  2. Reciprocity
    If I help a person today, that person and others who hear of my help may be disposed to help me in the future.
  3. In-group favouritism and out-group discrimination
    People are more likely to cooperate with people from their in-group than people from an out-group. People also experience schadenfreude, pleasure if a competitor receives something negative (e.g: a rumour is spread about the competitor).

Competitions between groups promote three changes in the relationships among people within and between groups:

  1. Within-group solidarity
    A common opponent unites.
  2. Negative stereotyping of the other group
    The other group becomes negatively stereotyped.
  3. Hostile between-group interactions
    Hostile interactions between groups increase as rivalry increases.

Rivalries between groups can be reduced by the establishment of superordinate goals, goals that were desired by both groups and could be achieved best through cooperation between groups.

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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 14

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 14

 

Personality is the relatively consistent patterns of thought, feeling and behaviour that characterize each person as a unique individual. A trait is a relatively stable predisposition to behave in a certain way. There are traits that are always present, but there are also traits that need a certain situation before they manifest. Traits are dimensions, which are measurable, continuous characteristics, along which people differ by degree.

Trait theories of personality endeavour to specify a manageable set of distinct personality dimensions that can be used to summarize the fundamental psychological differences among individuals. Factor analysis is used in defining the most useful dimensions. There are three steps in factor analysis:

  1. Collect data from a lot of people
  2. Factor extraction
    Correlate the data with each other. Here you correlate the terms with each other (e.g: friendly and likeable).
  3. Label
    Here the factors that correlate strongly together get a new label, such as conscientiousness.

Factor analysis tells us that the dimensions are relatively independent of each other. The Big Five Theory of Personality states that someone’s personality is best described using five, relatively independent personality dimensions. These dimensions spell out OCEAN.

  1. Neuroticism – Stability
  2. Extraversion – Introversion
  3. Openness to new experience – Non-openness
  4. Agreeableness – Antagonism
  5. Conscientiousness – Undirectedness

There was a proposal for a higher-order personality trait independent of IQ that is predictive of success in a wide range of domains and is called grit. Grit is defined as perseverance and passion for long-term goals. Especially the tendency to persist at difficult tasks seems to be important for predicting success. The validity of the Big Five Theory of Personality is measured by checking the correlation between the test and the actual behaviour.

People with socially aversive personalities score high on the dark triad, which consists of three things:

  1. Narcissism
    Extreme selfishness with a grandiose view of one’s abilities and a need for admiration
  2. Machiavellianism
    Predisposed to manipulate other people, often through deception.
  3. Psychopathy
    Amoral or antisocial behaviour, coupled with a lack of empathy and an inability to form meaningful personal relationships.

Personality is relatively constant throughout adulthood and stays constant after 50 years of age. The older someone is, the less likely it is that their personality is going to change. The heritability of personality traits is about 0.50. The household in which an individual grew up does not correlate with personality at all. A single gene may influence neuroticism, as well as the neurotransmitter serotine. A single gene may influence novelty seeking, as well as the neurotransmitter dopamine.

It could be that personality is a side-effect of evolution. It could also be that personality has an evolutionary advantage. If there are more different types of individuals in one species, the likeliness of survival is bigger. There are differences in behavioural styles across species. The Big Five can be thought of as alternative general strategies for solving problems related to survival and reproduction. There is a trait that is associated with change and is called differential susceptibility to environmental influence. Individuals with this trait are very susceptible to their environment, for better and for worse.

Pre-existing small differences between siblings may become exaggerated in part because siblings tend to define themselves as different from one another and tend to accentuate those differences through their own behavioural choices. The sibling contrast refers to the within-family emphasis on the differences between siblings. The split-parent identification is a tendency for each of two siblings to identify with a different one of their two parents. A possible explanation for why siblings and parents accentuate differences is that is could possibly reduce sibling rivalry, which can be disruptive to family functioning.

There are gender differences in personality. Women score higher on agreeableness than men and women generally score higher on neuroticism. Gender influences the personality one develops. A possible explanation for this lies in cultural expectations for each gender. Gender differences in personality can be explained by the social expectations for each gender.

Freud used the term psychoanalysis to refer both to his method of treatment and to his theory of personality. Today, the type of therapy Freud used is called psychodynamic theories. These theories emphasize the interplay of mental forces. People are often unconscious of their motives and there are processes called defence mechanisms within the mind to keep unacceptable or anxiety/producing motives and thoughts out of the consciousness. Freud proposed a theory in which a child develops through several stages:

  1. Oral stage (birth to 1 year)
    Sexual excitation is centred around the mouth.
  2. Anal stage (1 to 3 years)
    Anal needs become increasingly important.
  3. Phallic stage (3 to 5 years)
    Resolution of the Oedipus and Electra complex.
  4. Latency stage (5 years to the beginning of puberty)
    No body parts arouse sexual pleasure
  5. Genital stage (adolescence and adulthood)

Erikson believes that there are several psychosocial stages of development:

  1. Basic trust versus mistrust (birth to 1 year)
  2. Autonomy versus shame and doubt (1 to 3 years)
  3. Initiative versus guilt (3 to 6 years)
  4. Industry versus inferiority (6 years to puberty)
  5. Identity versus identity confusion (12 to 18 years)
  6. Intimacy versus isolation (young adulthood)
  7. Generativity versus stagnation (middle adulthood)
  8. Integrity versus despair (late adulthood)

Freud believes that the real reason for our actions lies in the unconsciousness. Defence mechanisms are mental processes of self-deception with the goal to reduce one’s consciousness of wishes, memories and other thoughts that would threaten one’s self-esteem or in other ways provoke a strong sense of insecurity or anxiety. There are several defence mechanisms:

  1. Repression
    Anxiety-producing thoughts are pushed out or kept out of one’s consciousness.
  2. Displacement
    The unacceptable wish is redirected toward a more acceptable alternative.
  3. Sublimation
    This is a displacement in which a person’s wish is directed toward activities that are particularly valued by society.
  4. Reaction formation
    Forming a different reaction for the true emotion (e.g: a hatred towards your mother may be changed in intense love towards your mother).
  5. Projection
    Projecting a characteristic or attribute onto someone else.
  6. Rationalization
    The use of conscious reasoning to explain away anxiety-producing thoughts or feelings.

Repressors are people who regularly repress emotions accompanying disturbing events in life. Repressors report less psychological distress but show more physiological distress than non-repressors. Defence mechanisms can be divided into three separate categories:

  1. Immature defence mechanisms
    These are the defence mechanisms that distort reality the most and lead to the most ineffective actions (e.g: projection).
  2. Intermediate defence mechanisms
    These are the defence mechanisms that lead to less distortion of reality and are more effective ways of coping (e.g: repression and reaction forming).
  3. Mature defence mechanisms
    These are the defence mechanisms that lead to the least distortion of reality and lead to the most adaptive behaviours (e.g: suppression and humour).

Humanistic theories of personality emphasize people’s understanding of themselves and their capacity to choose their own paths to fulfilment. Phenomenology is the study of conscious perceptions and understandings. Phenomenological reality refers to each person’s conscious understanding of his own world. Self-actualisation refers to the process of becoming one’s full self. This includes realizing one’s dreams and capabilities. People will always make choices that are best for their own development. According to phenomenologists, humans have five needs that are in hierarchical order:

  1. Self-actualisation needs
  2. Esteem needs
  3. Attachment needs
  4. Safety needs
  5. Physiological needs

People can only focus on a higher need if the one below it is sufficiently satisfied.

Social-cognitive theories of personality emphasize the roles of general beliefs about the nature of the world, which are acquired through one’s experiences in the social environment. The locus of control refers to the tendency of people to behave according to a generalized disposition (a personality trait) acquired from past experience. People who believe that they control their own rewards are said to have an internal locus of control and people that believe that rewards are controlled by factors outside themselves are said to have an external locus of control.

Self-efficacy refers to people’s beliefs about their own abilities to perform specific tasks. Self-efficacy refers to the person’s sense of his own ability, while the locus of control refers to the person’s belief that ability will produce its desired effects. If people expect that they can do something, they are more likely to be able to do it. People who are more malleable, meaning that the belief that they are not fixed entities are more likely to strive for self-improvement.

The personality traits of the big five can differ per situation. Two children can have the same score for aggression, but that trait might manifest itself in completely different situations for both children (e.g: one child shows aggression when warned by an adult while another child shows aggression when teased by a peer).

The eight DIAMONDS dimensions of situations measure the situations. It describes the situation.

  1. Duty
    Does something need to be done?
  2. Intellect
    Is deep information processing needed?
  3. Adversity
    Is someone being threatened?
  4. Mating
    Does the situation involve sexual or romantic content?
  5. Positivity
    Is the situation positive?
  6. Negativity
    Do negative things taint the situation?
  7. Deceptions
    Is someone being deceptive?
  8. Sociability
    Does the situation involve social interaction and possible relationship formation?

There are cultural differences of personality, especially across collectivistic and individualistic cultures.

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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 15

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 15

A potential psychological disorder must be evaluated in four aspects:

  1. Deviance
    The degree in which the behaviour or thoughts are unacceptable in society
  2. Distress
    The negative feelings a person has because of the disorder
  3. Dysfunction
    The maladaptive behaviour that interferes with properly functioning
  4. Danger
    The dangerous or violent behaviour directed towards the self or others.

A person must have clinically significant scores on all these aspects for something to be a psychological disorder. There are three demands to be made to a condition before being labelled a psychological disorder:

  1. Internal source
  2. Involuntary
  3. Clinically significant detriment

The reliability of a diagnostic system refers to the extent to which different diagnosticians, al trained in the use of the system, reach the same conclusion when they independently diagnose the same individuals. The validity of a diagnostic system is an index of the extent to which the categories it identifies are useful and meaningful in clinicians. A label implying a psychological disorder has the potential to interfere with the person’s ability to cope with his or her environment through several means:

  1. Potential to stigmatize the diagnosed person
  2. Reduce self-esteem diagnosed person
  3. Potential to blind clinicians

The medical student’s disease is characterised by a strong tendency to relate personally to and to find in oneself, the symptoms of any disease or disorder described in a textbook. There are several cultural related psychological disorders, such as anorexia nervosa. This used to be a psychological disorder that was only known in western cultures, but because of the globalisation, it happens in other cultures too. Culture does not only affect the types of behaviours and syndromes that people manifest but also affects clinician’s decisions about what to label as disorders, for example, homosexuality used to be labelled as a disorder. There are constantly new disorders being added, one of those is ADHD, which has three varieties:

  1. Predominantly inattentive type
    This type is characterised by the lack of attention to instructions and the failure to concentrate.
  2. Predominantly hyperactive-impulsive type
    This type is characterised by such behaviours as fidgeting, talking excessively, interrupting others.
  3. Combined type
    This type is a combination of the two other types.

One of the most important causes of psychological disorders is brain deficit and the brain itself. Down Syndrome is a disorder that is present at birth and is caused by an error in meiosis, which results in an extra chromosome. Alzheimer’s disease is found primarily in older adults. The disorder is characterised psychologically by a progressive deterioration in all person’s cognitive abilities, followed by deterioration in the brain’s control of bodily functions. The disorder is caused by the presence of amyloid plaques, deposits of a particular protein, called beta-amyloid. There is a difference between chronic disorders and episodic disorders, disorders of which the effects are reversible.

Environmental assaults to the brain, the effects of learning and genes can contribute to the predisposition for episodic disorders. There are three types of causes of psychological disorders:

  1. Predisposing causes of psychological disorders
    These are causes that were in place well before the onset of the disorder and make the person susceptible to the disorder (e.g: genetically inherited characteristics, prolonged environmental assaults on the brain and learned beliefs and maladaptive patterns of reacting to or thinking about stressful situations).
  2. Precipitating causes of psychological disorders
    These are the immediate events in a person’s life that bring on the disorder, also called major life events.
  3. Perpetuating causes of psychological disorders
    These are the consequences of a disorder that help keep it going once it begins (e.g: the negative thought of depression can keep the depression going).

Sex differences in psychological disorders may arise from a number of causes, including the following:

  1. Differences in reporting or suppressing psychological stress
  2. Clinician’s expectations
  3. Differences in stressful experiences
  4. Differences in ways of responding to stressful situations

Anxiety disorders are disorders in which fear or anxiety is the most prominent disturbance. The major anxiety disorders are generalized anxiety disorder, phobias and panic disorders. Genetic differences play a considerable role in the predisposition for all these disorders.

People with generalized anxiety disorder worry continuously, about multiple issues, and they experience muscle tension, irritability, and difficulty in sleeping. In order to be diagnosed with generalized anxiety disorder, the life-disrupting worry must occur on more days than not for at least six months and must occur independently of other diagnosable disorders. People with generalized anxiety disorder also have heightened attention to potential threat, called hypervigilance.

A phobia is an intense, irrational fear, that is very clearly related to a particular object or event. Learning plays a role in the causation of phobias. People are genetically prepared to be afraid of some things and not of others. This is why phobias of spiders or snakes are more common than phobias of pigeons. People with phobias tend to avoid the thing they are afraid of and this can perpetuate the disorder.

Panic is a feeling of helpless terror. Panic attacks arise at random moments and cannot be avoided. It is unrelated to a specific object or event. They usually last several minutes. To be diagnosed with a panic disorder, a person must have experienced recurrent unexpected attack, at least one of which is followed by one month of debilitating worry about having another attack or by life-constraining changes in behaviour. A panic disorder often manifests itself after a major life event. A perpetuating cause of the panic disorder is a learned tendency to interpret physiological arousal as panic. Agoraphobia is a fear of public places.

An obsession is a disturbing thought that intrudes repeatedly on a person’s consciousness even though the person recognizes it as irrational. A compulsion is an action following an obsession. People with OCD are people for whom such thoughts and actions are severe, prolonged and disruptive of normal life. To be diagnosed with OCD, the thoughts must consume more than one hour a day and must seriously interfere with work or social relationships. Brain damage can be a predisposing cause of OCD. It may be related to damage to the basal ganglia, portions of the frontal lobe and parts of the underlying limbic system. People with OCD may also have problems with their executive functions.

There are five types of stress disorders:

  1. Reactive attachment disorder
    Children with this disorder are inhibited or emotionally withdrawn from their caregivers.
  2. Disinhibited social engagement disorder
    Children with this disorder are overly familiar with unfamiliar adults.
  3. Acute stress disorder
    Individuals with this disorder experience distressing memories, negative mood, memory loss and sleep disturbances, among other symptoms, for at least three days.
  4. Adjustment disorder
    Individuals with this disorder experience emotional distress out of proportion to the severity of the stressor in response to an identifiable event.
  5. Posttraumatic stress disorder
    This disorder is necessarily brought on by stressful experiences.

PTSD is characterized by three major symptoms:

  1. Uncontrollable re-experiencing
  2. Heightened arousal (sleeplessness, irritability, exaggerated startle responses)
  3. Avoidance of trauma-related stimuli

People with PTSD show deficits in a number of cognitive abilities, including speed of information processing, working memory, verbal learning and memory, inhibitory control, episodic memory and imagining future events. Genetic predisposition repeated exposures to traumatic events and inadequate social support increase the risk for the disorder.

There are two main categories of mood disorders: depressive disorders and bipolar and related disorders. Depression is characterized primarily by prolonged sadness, self-lame, a sense of worthlessness and absence of pleasure. The total amount of sleep, appetite can also be a symptom, as well as agitated and retarded motor symptoms. Retarded motor symptoms include slower speech and slowed body movements. Agitated symptoms include repetitive, aimless movements. There are two types of depression:

  1. Major depression
    Very severe symptoms lasting without remission for at least two weeks.
  2. Dysthymia
    Less severe symptoms that last for at least two years.

Generalized anxiety disorder and depression are related and are linked to the same genes. The hopelessness theory states that depression results from a pattern of thinking about negative events that have three characteristics:

  1. Assuming that the negative event will have disastrous consequences
  2. Assuming that the negative event reflects something negative about the individual
  3. Attributing the cause of the negative event to something that is stable and global (e.g: attributing failing a test to one’s stupidity)

People with depression often use the thinking style rumination, which involves repetitively and passively focusing on symptoms of distress and the possible causes and consequences of these symptoms. Rumination does not lead to problem-solving but focusses on one’s problems and negative feelings. A major life event often triggers depression. Depression may be caused by the shrinking of the hippocampus and parts of the prefrontal cortex, which is reversible. Antidepressants contain norepinephrine and serotine and this stimulates the growth of these two brain areas, thus explaining why antidepressants help, but only after prolonged use.

Major depression and dysthymia are sometimes called unipolar disorders because they are characterized by mood changes in only one direction. Bipolar disorders are characterized by mood swings in both directions. There are two varieties of bipolar disorders:

  1. Bipolar I disorder
    This is characterized by at least one manic episode, which may or may not be followed up by a depressive episode.
  2. Bipolar II disorder
    This is characterized by a less extreme high phase, referred to as hypomania, rather than mania.

The predisposition for bipolar disorders is strongly heritable. Bipolar disorders can usually be controlled with doses of lithium.

People with schizophrenia have difficulty distinguishing reality from imagination. To be diagnosed with schizophrenia, an individual must manifest a serious decline in the ability to work, care for himself and connect socially in others. The person must also manifest, for at least one month, two or more of the following five categories of symptoms:

  1. Disorganized thought and speech
    The inability to think in a logical, coherent matter. Problem information is often encoded incorrectly.
  2. Delusions
    A false belief held in the face of compelling evidence to the contrary. Delusions may result from a fundamental difficulty in identifying and remembering the original source of ideas or actions.
  3. Hallucinations
    False sensory perceptions, hearing or seeing things that aren’t there. The most common hallucinations in schizophrenia are auditory.
  4. Disorganized or catatonic behaviour
    Disorganized behaviour and the inability to keep the context in mind and to coordinate actions with it. People with schizophrenia may be unable to generate or follow a coherent plan of action. Catatonic behaviour is behaviour that is unresponsive to the environment. Catatonic stupor is the lack of movements for a prolonged period of time.
  5. Negative symptoms
    These symptoms are symptoms that involve a lack of, or reduction in, expected behaviours, thoughts, feelings and drives (e.g: people with schizophrenia might be feeling no hunger at all).

People with schizophrenia appear to suffer from deficits in essentially all the basic processes of attention and memory. Schizophrenia may involve unusual patterns of dopamine activity. Overactivity of dopamine in some part of the brain, such as the basal ganglia, may promote the positive symptoms and underactivity of dopamine in the prefrontal cortex may promote the negative symptoms. Glutamate might also play a role in schizophrenia. People with schizophrenia have larger cerebral ventricles, fluid-filled spaces in the brain. Schizophrenia may also occur because of the decline in grey matter in the brain.

The concordance for the disorder is the percentage of relatives of someone with the disorder have the disorder as well. The more closely related someone is to someone with schizophrenia, the greater the change that that person will develop schizophrenia as well. Prenatal variables, such as malnutrition, can influence the likelihood of developing schizophrenia. There are no cultural differences in the occurrence of schizophrenia, but there are differences in the recovery rate. People with schizophrenia in developing countries tend to recover more often.

A personality disorder is an enduring pattern of behaviour, thoughts and emotions that impairs a person´s sense of self, goals and capacity for empathy and-or intimacy. There are three clusters of personality disorders. Cluster A, “odd” personality disorders:

  1. Paranoid personality disorder
    People with this disorder are deeply distrustful of other people and are suspicious of their motives.
  2. Schizoid personality disorder
    People with this disorder display little in the way of emotion, either positive or negative and tend to avoid social relationships. They genuinely prefer to be alone.
  3. Schizotypal personality disorder
    People with this disorder show extreme discomfort in social situations, often bizarre patterns of thinking and perceiving and behavioural eccentricities.

Cluster B, “dramatic” personality disorders:

  1. Antisocial personality disorder
    People with this disorder consistently violate or disregard the rights of others. They are sometimes referred to as sociopaths or psychopath. They frequently lie seem to lack moral conscience.
  2. Borderline personality disorder
    People with this disorder are emotionally very unstable and show mood swings. They often show dramatic changes in identity, goals, friends and even sexual orientation.
  3. Histrionic personality disorder
    People with this disorder continuously seek to be the centre of attention. They behave as if they’re always on stage.
  4. Narcissistic personality disorder
    People with this disorder are even more self-centred than people with a histrionic personality disorder. They seek admiration and often lack empathy.

Cluster C, “Anxious” personality disorders:

  1. Avoidant personality disorder
    People with this disorder are excessively shy. They are uncomfortable and inhibited in social situations. They feel inadequate and are extremely sensitive to being evaluated, experiencing a dread of criticism. They have an extreme fear of rejection.
  2. Dependent personality disorder
    People with this personality disorder show an extreme need to be car4ed for. They are clingy and fear separation from significant people in their lives, believing they cannot care for themselves.
  3. Obsessive-Compulsive personality disorder
    People with this disorder are preoccupied with order and control and are thus inflexible and resist change.
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Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 16

Psychology by P. Gray and D. F., Bjorkland (eight edition) – Summary chapter 16

The caring for people with psychological disorders used to be non-existent. Nowadays, there is more care. Since the 1970s, assertive community treatment has existed, aimed at helping a person with severe psychological problems and preventing hospitalization.

Electroconvulsive therapy is used primarily in cases of severe depression that does not respond to psychotherapy or antidepressant drugs. The treatment consists of people receiving anaesthesia and passing an electric current through a patient’s skull triggering a seizure in the brain that lasts approximately one minute. The shocks and the seizures promote the producing of neurotransmitters and the sensitivity of postsynaptic receptors. It also stimulates the growth of new neurons. The most frequent side effect of the treatment is memory loss, although this mostly clears up within a few months after the treatment.

Psychosurgery is a last-resort treatment, which involves surgically cutting or producing lesions in portions of the brain to relieve a psychological disorder. The consequence of prefrontal lobotomy was that people did not have access to their executive functions anymore and needed constant care. In deep brain stimulation, a thin wire electrode is planted permanently in the brain, usually in the cingulum or in a portion of the basal ganglia for patients with OCD, and this electrode can be activated in order to electrically stimulate, rather than destroy the neurons lying near it.

Psychotherapy aims to treat psychological disorders through talk, reflection, learning and practice. Psychotherapy is any theory-based, systematic procedure, conducted by a trained therapist, for helping people to overcome or cope with mental problems through psychological rather than physiological means. Each major approach in psychotherapy draws on a set of psychological principles and ideas that apply to adaptive as well as maladaptive behaviour:

  1. The psychodynamic approach focusses on the idea that unconscious memories and emotions influence our conscious thoughts and actions
  2. The humanistic approach focusses on the value of self-esteem and self-direction and that people need psychological support in order to freely pursue their own chosen goals.
  3. The behavioural approach focusses on the roles of basic learning processes.
  4. The cognitive approach focusses on the idea that people’s ingrained, habitual ways of thinking affect their moods and behaviour.

Psychoanalysis refers to the forms of therapy that are closely tied to Freud’s ideas. Psychodynamic therapy is used to include psychoanalysis and therapies that are more loosely based on Freud’s ideas. Psychodynamic therapy focusses on the fact that mental problems arise from unresolved mental conflicts, which themselves arise from the holding of contradictory motives and beliefs. Symptoms are surface manifestations of the disorder. The disorder itself is buried in the person’s unconscious mind and must be unearthed before it can be treated. The elements of thought that are the least logical give clues to the unconscious motive and psychodynamic therapists use three techniques to find these elements of thought:

  1. Free association as clues to the unconscious
  2. Dreams as clues to the unconscious
  3. Mistakes and slips of the tongue as clues to the unconscious

Patients often resist the therapist’s attempt to bring their unconscious memories or wishes into consciousness. The resistance may manifest itself in for example refusing to talk about a topic, forgetting to come to the sessions. Resistance may give an insight into the unconscious thoughts. To avoid too much resistance, the therapist must present interpretations gradually. Transference also occurs in psychodynamic therapy. This happens when the patient’s unconscious feelings towards someone are projected onto the therapist.

Humanistic therapies are built upon two fundamental psychological ideas:

  1. Humans have the capacity to make adaptive choices regarding their own behaviour
  2. In order to feel good about themselves, to feel motivated and to move forward in life, people need to feel accepted and approved of by others.

The humanistic views emphasized the inner potential for positive growth, the actualization potential. The goal of humanistic therapy is to help people regain awareness of their own desires and control of their own lives. It is also called person-centred therapy. The relationship between the therapist and the patient is very important. The therapist lets the patient take the lead in therapy, strives to understand and emphasise with the client and endeavours to think positively and genuinely of the patient as a competent, valuable person. Therapists paraphrase what the patient said.

Unconditional positive regard implies a belief on the therapist’s part that the patient is worthy and capable even when the patient may not feel or act that way. By expressing positive feelings about the patient regardless of what the patient says or does, the therapist creates a safe, non-judgemental environment.

Behavioural and cognitive therapies state that the symptoms are the problem. Behaviour therapy is symptom orientated and concerned with immediate, measurable results. The two most common types of treatment in behaviour therapy are contingency management therapy and exposure therapy. Contingency management is a therapy that is focused on altering the contingency between actions and rewards (e.g: people afraid of dogs are rewarded by not seeing dogs by not being afraid, thus they stay afraid of dogs).

If there is an unconditioned fear response to something, then there is habituation, because of exposure therapy. If there is a conditioned fear response to something, then there is extinction, as a result of exposure therapy. There are three different means to present feared stimuli to clients in exposure treatment:

  1. Imaginal exposure
  2. In vivo exposure (real-life exposure)
  3. Virtual reality exposure

Cognitive therapy deals with maladaptive habits of thought. Cognitive therapy starts with the assumption that people disturb themselves through their own, often illogical beliefs and thoughts. There are three general principles in cognitive therapy:

  1. Identification and correction of maladaptive beliefs and thoughts
    This is done in several ways, for example, using humour or using Socratic dialogue.
  2. Establishment of clear-cut goals and steps for achieving them
    Once the maladaptive belief has been identified, it has to be corrected by a more rational and adaptive way of thinking. This can take long
  3. Moving from a teaching role to a consulting role with the patient
    After a while, the therapist becomes less of a teacher and more of a consultant.

In cognitive therapy, there is an ABC theory of emotions. A is the activating event, B is the belief that is triggered in the patient’s mind when the event occurs and C is the emotional consequence of the triggered belief. The therapy changes the belief.

Therapy helps. About 75% - 80% that receive psychotherapy improve upon their condition. There is no therapy superior to another type of therapy, but some types of therapy might work better for some disorders than for other disorders. All therapies include some common factors:

  1. Support
    This includes acceptance, empathy and encouragement.
  2. Hope
  3. Motivation
    The active agent of change is the patient himself and this change requires motivation.

 

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Introduction to Psychology - Year 1 Psychology UvA

Introduction to Psychology

This page bundles the study guides and additional learning materials for the 'Introduction to Psychology' course at the University of Amsterdam as wirtten by JesperN, the material might be a little outdated for you. Therefore, please check the difference in edition to ensure there are no unforced errors in your own work.

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Introduction to Psychology - Year 1 Psychology UvA

Introduction to Psychology - Year 1 Psychology UvA

Introduction to Psychology

This page bundles the study guides and additional learning materials for the 'Introduction to Psychology' course at the University of Amsterdam as wirtten by JesperN, the material might be a little outdated for you. Therefore, please check the difference in edition to ensure there are no unforced errors in your own work.

Summaries and study assistance with Introduction to Psychology on worldsupporter.org by JesperN

Additional study material with Introduction to Psychology on worldsupporter.org by JesperN

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