the motor system (3)

Question 1

what does the prefrontal cortex do?

Answer 1

guides behaviour by holding mental representations of possible and future events.

Question 2

what does the premotor cortex do?

Answer 2

guides actions - holds representations of the action to be performed

Question 3

what does the primary motor cortex do?

Answer 3

holds info on the movements to be performed to accomplish the actions.

Question 4

what does it mean to have a rostral to caudal relatioship?

Answer 4

more control over movement is granted as you move further from the front of the brain back.

Question 5

lesions in the premotor cortex do not…

Answer 5

cause paralysis

Question 6

actions are determined by the premotor cortex according to..

Answer 6

environmental stimuli (visual, tactile and auditory).

Question 7

what is the mirror function of the premotor cortex?

Answer 7

it was found that neurons in the brain become active when a monkey/human observes someone else make the movement
- constructs an internal representation based on others behaviour.

Question 8

are mental represenations conscious? why or why not?

Answer 8

no, unconscious.

they occur long before the intention to move occurs in the brain.

Question 9

what changes occur after traumatic brain injury to the prefrontal cortex?

Answer 9

changes in personality, mood regulation and cognitive abilities.

Question 10

what have neuroimaging studies shown about the role of the prefrontal cortex?

Answer 10

there is a role for planning goals and intentions.