Executive Function Flashcards Preview

Jason's Neuro Block > Executive Function > Flashcards

Flashcards in Executive Function Deck (20):
1

Frontal lobe is ___% brain volume?

30

2

3 types of subdivision for frontal lobe?

1. cytoarchitecture (Brodmann's)
2. thalamic connection (efferent v. afferent)
3. functional properties

3

Why was Phineas Gage famous?

dramatic change in personality with relative intellectual ability

4

Anterior unit in Luria's functional system is for?

planning executing/verifying behaviour

5

what does executive function mean

inter-related processes responsible for goal directed, purposeful behaviour

6

3 functional subdivisions of pre-frontal cortex

lateral
orbital
medial

7

dorsolateral pre-frontal cortex supplied by which artery?

middle cerebral artery

8

lack of insight means?

ppl don't think anything is wrong with them

9

medial PFC function? blood supply

emotional/motivational interface
anterior cerebral artery

10

what is akinetic mutism?

physically able to do things: lack motivation

11

orbitofrontal pre-frontal cortex main functions?

inhibition (emo, cog, social)
impulsivity
connected to limbic areas

12

orbitofrontal pre-frontal cortex blood supply?

anterior and middle cerebral artery

13

when does frontal lobe develop/degenerate compared to other lobes?

last to develop
first to degenerate in aging

14

what is a positive process for neural development?

neuronal proliferation

15

what is a negative process for neural development?

pruning/rearranging

16

executive dysfunction is different from frontal lobe how?

you can get executive dysfunction without frontal lobe lesion, it's a SYSTEM, any disruption in system can cause problems

17

executive dysfunction positive vs. negative symptoms, which easier to miss?

negative symptoms

18

difference between executive function and prefrontal cortex function?

prefrontal acts as 'coordinator' of executive function system

19

formal neuropsych testing most sensitive to what lesions?

dorsolateral prefrontal cortex lesions

20

7 common causes of executive dysfunction?

1. closed head injury
2. stroke
3. psychiatric conditions
4. dementias
5. focal lesions
6. inflammatory
7. developmental