The executive brain Flashcards
Executive functions
Control processes that enable an individual to optimize performance in situations requiring the operation and coordination of several more basic cognitive processes.
Self-ordered pointing task
A task in which participants must point to a new object on each trial and thus maintain a working memory for previously selected items.
FAS Test
A test of verbal fluency in which participants must generate words beginning with a letter in a limited amount of time.
Stroop test
Response interference from naming the ink color of a written color name (e.g., the word BLUE is printed in red ink and participants are asked to say the ink color, i.e., ‘red’).
Go/No-Go Test
A test of response inhibition in which participants must respond to a frequent stimulus (go trials) but withhold a response to another stimulus (no go trials).
Impulsivity
A behavioral tendency to make immediate responses or seek immediate rewards.
Wisconsin Card Sorting Test
A test of executive functions involving rule induction and rule use.
Perseveration
Failure to shift away from a previous response.
Task-switching
Discarding a previous schema and establishing a new one.
Switch cost
A slowing of response time due to discarding a previous schema and setting up a new one.
Multi-tasking
Carrying out several tasks in succession; requires both task-switching and maintaining future goals while current goals are being dealt with.
Reversal learning
Learning that a previously rewarded stimulus or response is no longer rewarded.
Somatic Marker Hypothesis
A proposal that emotional and bodily states associated with previous behaviors are used to influence decision making.
Iowa Gambling Task
A task in which participants must learn to avoid risky choices (generating a net loss) in favor of less risky (and more rewarding) choices.
Sociopathy
A personality disorder (now called Anti-Social Personality Disorder) associated with irresponsible and unreliable behavior that is not personally advantageous; an inability to form lasting commitments or relationships; egocentric thinking; and a marked degree of impulsivity.