basal ganglia

Question 1

basal ganglia function

Answer 1

automaticity and motivation
weighs in on input from cortex to decide what actually happens

Question 2

caudate nucleus

Answer 2

input from cortical areas
provides rewarding feeling following task completion

Question 3

putamen

Answer 3

input from motor and sensory areas

Question 4

globus pallidus

Answer 4

controls conscious and proprioceptive movements

Question 5

substantia nigra

Answer 5

provides dopamine

Question 6

thalamus

Answer 6

sends output to cortical areas

Question 7

ventral posterolateral nucleus(thalamus)

Answer 7

sends output to primary sensory cortex

Question 8

ventral lateral and ventral anterior (thalamus)

Answer 8

send output to motor areas and receive input from basal ganglia

Question 9

huntington’s disease

Answer 9

death of brain cells
starts in the striatum
early loss of cognitive and emotional control –> motor production issues

Question 10

parkinsons

Answer 10

death of cells in substantia nigra
akinesia, tremors, muscle rigidity

Question 11

nucleus accumbens

Answer 11

balances motivation and action

Question 12

motor loop

Answer 12

cortex → putamen → thalamus → motor cortex → corticospinal tract

Question 13

cognitive loop

Answer 13

association cortex –> caudate and nucleus accumbens –> thalamus –> cortex

Question 14

limbic loop

Answer 14

Limbic system–> caudate nucleus and nucleus accumbens –> thalamus –> limbic system