The Frontal Lobes and Executive Function

Question 1

What is the function of the dorsolateral prefrontal cortex?

Answer 1

working memory, response selection, planning and organising, hypothesis generation, flexibility, insight, moral judgement

Question 2

What is the main artery that supplies the dorsolateral prefrontal cortex?

Answer 2

middle cerebral artery

Question 3

What is the function of the medial prefrontal cortex?

Answer 3

emotional motivational interface

Question 4

What traits are seen in a medial prefrontal cortex lesion?

Answer 4

apathy, lack of engagement, lack of initiative, lack of drive

Question 5

What is the main artery that supplies the medial prefrontal cortex?

Answer 5

anterior cerebral artery

Question 6

What traits are seen in an orbital prefrontal cortex lesion?

Answer 6

impulsiveness, inappropriate or exaggerated emotional responses, lack of inhibition

Question 7

What arteries supply the orbital prefrontal cortex?

Answer 7

middle and anterior cerebral arteries

Question 8

What are some common causes of executive dysfunction?

Answer 8

• closed head injuries
  
  • stroke
  • psychiatric conditions
  • dementias
  • focal lesions
  • inflammatory
  • developmental