w5 Flashcards
what are executive functions needed for
to optimise performance in situations that require coordination between several cognitive processes
executive functions are supervisory/meta-cognitive, meaning…
they are not specific to one domain
what type of behaviour required executive functions
controlled behaviour, but not automatic behaviours
which brain area is linked to executive functions
prefrontal cortex
3 surfaces of the prefrontal cortex
lateral, medial and orbital
the lateral surface is implicated in…
cold control processes- cognitive aspects
the orbital and the medial surfaces are implicated in…
hot control processes- emotional/social regulation of behaviour
what are the 5 general situations requiring executive functions
(1) Situations involving planning or decision making
(2) Situations involving error correction or trouble-shooting
(3) Situations where responses are not well-learned or contain novel sequences of actions
(4) Situations judged to be dangerous or technically difficult
(5) Situations that require the overcoming of a strong habitual response or resisting temptation
which area is particularly activated when healthy patients carry out the towers of London task
PFC (especially dorsolateral)
what do patients with PFC damage do
exhibit perseveration behaviour
what is preservation behaviour
keep responding using a previously correct response
what is the PFC involved in
error correction and troubleshooting
what area is activated more when feedback is negative, and what does this suggest
Ventrolateral PFC, suggests involvement of this region when there is a need to change the rule
what is the role of the anterior cingulate in executive functions
Detection of errors and detection of response conflict
where does an error potential originate
the anterior cingulate