Psychology and behavorial sciences - Theme
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What is true about TMS (transcranial magnetic stimulation)?
It activates a relatively small volume of cortex, roughly equivalent to an MRI voxel.
It is an invase technique that can only be performed on anaesthetized humans.
It involves a short-lived magnetic field over a specific area of the skull, with which a specific part of the brain can be stimulated.
What are the advantages of using multiple methods over just using one method?
C. It involves a short-lived magnetic field over a specific area of the skull, with which a specific part of the brain can be stimulated.
There are two advantages. Using multiple methods leads to convergence as well as complementarity. Convergence refers to using different studies to reinforce the results. When you perform multiple, different studies but still obtain the same result, your result is more reliable. Complementarity refers to the unique combination of different methods to study a concept. For example, using fMRI to measure blood and oxygen levels and using single-unit recordings to see how neurons transmit information.
What is the inverse problem?
It stems from a troubling dependency of individual scalp electrodes to reverse polarity
It stems from the inverse electrical polarities encountered in the occipital and frontal cortices
It concerns ambiguities in the spatial origin of the EEG signal
What is a double dissociation?
C. It concerns ambiguities in the spatial origin of the EEG signal
A double dissociation is found when function A is affected when brain part A is damaged, but not when part B is damaged.
What is prosopagnosia?
An inability to recognize speech
An inability to recognize gender
An inability to recognize faces
What is synaesthesia?
C. An inability to recognize faces
When people have synaesthesia, this means that they mix different sensory experiences. For example, they see the letter 'X', in the color blue. There are different forms of synaesthesia, and it is not yet clear how it develops.
What is true about the primary auditory cortex?
It receives most of the signals from the hypothalamus
It receives most of the signals from the hippocampus
It receives most of the signals from the amygdala
A. It receives most of the signals from the hypothalamus
What is apraxia?
It reflects a deficit in the ability to perform any movement
It reflects a deficit in the ability to perform earlier learned movements
It reflects a deficit in the ability to produce speech
B. It reflects a deficit in the ability to perform earlier learned movements
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