cerebellum and basal ganglia function

Question 1

what is feedforward control?

Answer 1

involves using sensory data to calculate a state that is coming at some future time (a predicted state).

Question 2

the error signal is used to alter the mapping between the input and output variables so that the target is achieved the next time. This is an example of ____.

Answer 2

adaptive feedforward control

Question 3

simple spikes of a purkinje neuron are a result of _____

Answer 3

activation from parrellel fibers

Question 4

complex spikes of a purkinje neuron are a result of _____

Answer 4

activation from climbing fibers

Question 5

Under (hypometria) and over (hypermetria) shooting of a target (dysmetria) and the decomposition of movement (the breakdown of the movement into its parts with impaired timing and integration of muscle activity) are seen with ____________.

Answer 5

appendicular ataxia.

Question 6

what is Dysdiadochokinesia?

Answer 6

impaired ability to perform rapid, alternating movements

Question 7

what is the prediction error hypothesis of dopamine ?

Answer 7

Dopamine encodes a reward prediction error

Question 8

The inferior olivary nucleus and the sunstantia nigra are considered comparators, what does that mean?

Answer 8

they generate a signal (an error signal) if observed outcome differs from predicted