motor control

Question 1

structures involved in:: motor control strategy

Answer 1

associated neocortex

basal ganglion

Question 2

structures involved in:: motor control tactics

Answer 2

motor cortex

cerebellum

Question 3

structures involved in:: motor control execution

Answer 3

brain stem

spinal cord

Question 4

lateral pathways

Answer 4

control voluntary movements of distal muscles - under directs cortical control

Question 5

venteromedial pathways

Answer 5

control posture and locomotion - under brainstem control

Question 6

which venteromedial pathways control posture and locomotion

Answer 6

vestibulospinal and tectospinal tracts

Question 7

which venteromedial pathways control trunk and antigravity muscles

Answer 7

pontine and medullary reticulospinal tracts

Question 8

microstimulation in specific areas of primary motor cortex elicits

Answer 8

a. coordinated movements of hand and mouth
or
b. movements that bring hands into central space to inspect/manipulate objects

Question 9

what is mental image of body in space generated by

Answer 9

somatosensory, proprioceptive and visual inputs to posterior parietal cortex
(areas5 and 7)

Question 10

area 6

Answer 10

decision making neurones
desired actions converted into how to carry this out

supplementary motor cortex

Question 11

where does major subcortical input to area 6 come from

Answer 11

ventral lateral nucleus in dorsal thamalus

Question 12

where does input to ventral lateral nucleus come from

Answer 12

basal ganglia

Question 13

corpus striatum

Answer 13

caudate and putamen

Question 14

input zone of basal ganglia

Answer 14

corpus striatum

Question 15

when does putamen fire

Answer 15

before limb/trunk movements

Question 16

when does caudate fire

Answer 16

before eye movements

Question 17

how does cortical activation of putamen boost cortical excitation

Answer 17

cortical excitation: 
excites putamen which 
inhibits inhibitory globus pallidus and so 
releases VLo from inhibition so 
activity in VLo boosts SMA actiivity

Question 18

cortical input direct pathway

Answer 18

selects specific motor actions

Question 19

cortical input indirect pathway

Answer 19

suppresses competing/inappropriate action

Question 20

cerebellum input to motor control n

Answer 20

direction, timing and force

motor learninh