W20-L6: Prefrontal Cortex and Executive Function Flashcards Preview

Matt's Block 06 - Neuro block > W20-L6: Prefrontal Cortex and Executive Function > Flashcards

Flashcards in W20-L6: Prefrontal Cortex and Executive Function Deck (15):
1

What are some of the functions of the frontal lobe?

-Motor control
-Language
-Higher level cognition

2

How can you subdivide the cortex?

-Cytoarchitecture
-Thalamic connections
-Functional properties

3

Executive function

Inter-related processes responsible for goal directed, purposeful behaviour

4

What is the function of the Dorsolateral pre-frontal cortex?

Traditional executive functions: Working memory, planning and organising, moral judgement

5

What supplies the Dorsolateral pre-frontal cortex?

Largely supplied by MCA

6

What is the function of the medial pre frontal cortex?

Emotional-motivational interface

7

What do lesions to the medial medial pre frontal cortex result in?

At most extreme: akinetic mutism, otherwise apathy, indifference

8

What supplies the medial pre-frontal cortex?

Anterior cerebral artery

9

What is the function of the Orbitofrontal pre-frontal cortex?

Inhibition of emotional, cognitive and social processes and controlling impulsivity. Highly connected to limbic areas

10

What supplies the orbito pre-frontal cortex?

ACA and MCA

11

What is special about the maturation and degeneration of the frontal lobe?

Frontal lobe is the last area of the brain to develop, and one of the first to develop. Therefore lesions here to young pts. means they lose the ability to develop functions of the frontal lobe

12

What is the difference between executive dysfunction and frontal lobe dysfunction?

frontal implies lesion in frontal lobe, executive dysfunction can be due to lesions elsewhere such as thalamus

13

What are some symptoms of executive dysfunction?

Positive symptoms: Distractability, social disinhibition, emotional instability

Negative symptoms:
Lack of concern, restricted emotion, deficient empathy

14

What are some neuropsychological tests for executive function?

Tower of London, Stroop test, Rey Complex figure test

15

What are common causes of executive dysfunction?

Closed head injury, stroke, psychiatric conditions, dementias, focal lesions, inflammatory or developmental

Decks in Matt's Block 06 - Neuro block Class (48):