Executive function Flashcards
What are key features of executive dysfunction
Loss of goal oriented behaviour
Stimulus driven behaviour
deficit in initiation of behaviour (apathy)
Impaired monitoring of responses
Disinhibition (socially inappropriate)
When is executive function required
The situation requires a response that competes with a strong, habitual response
A novel solution is required or the task is not well learnt
The situation requires correction or troubleshooting
What is executive function
description of psychological processes that underlie flexible goal directed behaviour (e.g. planning behaviour, inhibitory control, attentional flexibility, working memory, monitoring)
What does the Wisconsin Card Sorting Test measure
The ability to learn concepts and considered a good measure of frontal lobe functioning
What is N-Back last used to assess and what is it
Continuous performance task used to assess prefrontal function. Patients required to hold information over successive trials
How is temporal memory assessed
Remembering the order of events or actions
How is attentional control measured
selecting task relevant information
accentuate attended information
excluding irrelevant information
What does executive control ensure
Our behaviour is:
- goal oriented rather than stimulus driven
- ->Involves identify goals, holding these in mind
- ->Monitoring behaviour (correcting errors, inhibiting alternatives)
What is executive dysfunction
Subtle or overt behavioural and cognitive deficits in executive control, often associated with frontal lobe damage