Deck 7: Skeletomotor Control

Question 1

What kinds of information come together in the cerebellum?

Answer 1

not answered

Question 2

What is the internal model proposed by the Marr-Albus model of cerebellar function?

Answer 2

A prediction of what the effects of a movement should be

Question 3

Describe how the basal ganglia might serve a gating function to the neocortex.

Answer 3

not answered

Question 4

A.recurrent circuit has feedback.

Question 5

Describe what happens in the basal ganglia to account for why Parkinson's patients have difficulty initiating movements.

Question 6

The "fine-tuning" of movements carried out by the cerebellum is implemented by:

A)The weakening of synaptic connections between parallel fibers and Purkinje cells
B)The strengthening of synaptic connections between parallel fibers and Purkinje cells

Question 7

What three major circuits are critical for motor function?

Question 8

Which basal ganglia pathway goes through the external segment of the globus pallidus?

A)Direct
B)Indirect
C)Both

Question 9

What is efference copy? Why might it be useful?

Question 10

What evidence is there that the posterior parietal cortex might be better classified as a "how" region?

Question 11

Why does the thumb have a larger representation in the motor homunculus than the knee?

Question 12

To reach for a glass, the motor cortex needs to specify a sequence of muscle movements.

Question 13

What is the name of fibers that carry information that controls movement along the length of the spinal cord?

Question 14

How do the representations in premotor cortex and supplementary motor cortex differ from those in primary motor cortex?

Question 15

What is population coding? What evidence is there for it from motor control?

Question 16

Name three of the five cortico-basal ganglia-thalamic circuits.

Question 17

The resting tremor associated with Parkinson's disease comes from which of the following:

A)Inhibition of the thalamus via the direct pathway
B)Disinhibition of the thalamus via the direct pathway
C)Inhibition of the thalamus via the indirect pathway
D)Disinhibition of the thalamus via the indirect pathway

Question 18

Give an example of what might happen with microstimulation of the spinal cord.

Question 19

What is "mu desychronization"?