Rat material

Question 1

tool action production areas

Answer 1

premotor cortex, superior and inferior parietal lobules, lateral occipitotemporal cortex

Question 2

tool action recognition areas

Answer 2

lateral occipitotemporal cortex and a bit of the premotor cortex

Question 3

reaching info pathway

Answer 3

input brought from visual and somatosensory to posterior superior parietal –> dorsal premotor –> primary motor –> corticospinal –> spinal

Question 4

grasping info pathway

Answer 4

input brought from visual and somatosensory via the dorsal pathway to posterior superior parietal –> ventral premotor (which communicates with dorsal premotor) –> primary motor –> corticospinal –> spinal

Question 5

apraxia

Answer 5

inability to perform skilled or learned movement in the absence of elementary motor, sensory coordination deficit

Question 6

inferior parietal lobule in tool use

Answer 6

stores representation for tool use actions; based on context and goal

Question 7

where is semantic knowledge of tool fxn located

Answer 7

LOTC

Question 8

ideomotor apraxia

Answer 8

inability to perform gesture on verbal command even though you have intact knowledge of the task

Question 9

ideational

Answer 9

can’t perform in proper order all elements of task

Question 10

convergence

Answer 10

visual axis of eyes converge, near focus; eyes moving in opposite directions

Question 11

divergence

Answer 11

visual axis of eyes diverge, far focus; eyes moving in opposite directions

Question 12

vestibulo-ocular

Answer 12

keeps target fixed on retina during head movements

Question 13

optokinetic nystagmus

Answer 13

keeps target fixed on retina during relative movement of the environment

Question 14

what CN for convergence

Answer 14

CN III

Question 15

what CN for divergence

Answer 15

CN VI

Question 16

strabismus

Answer 16

medial deviation therefore lateral rectus issue (VI)

also called cranial nerve VI palsy/ abducens palsy