Cerebrum Stuff

Question 1

Damage to Broca’s area also causes what other clinical signs?

Answer 1

Right hemiparesis
apraxia of the L limb and face
(due to proximity to motor cortex)

Question 2

Wernicke’s area damage also causes what other clinical signs?

Answer 2

R homonymous hemianopsia

Question 3

Conduction disorder also presents with what other clinical signs?

Answer 3

R hemisensory deficit

apraxia of all limbs and face

Question 4

Global disorder also presents with what other clinical signs?

Answer 4

R hemiparesis
R hemisensory deficit
R homonymous hemianopsia

Question 5

spastic hemiparesis = damage to?

Answer 5

precentral gyri of frontal lobe (contralat), F1

Question 6

Apraxias (even with normal muscle strength) = damage to?

Answer 6

premotor gyri (F2),

Question 7

damage = eyes fixed towards damaged side, but if overactive, eyes move away, also mediates saccadic movements

Answer 7

frontal eye fields (F3)

Question 8

anhedonia when damaged BILATERALLY, otherwise pleasure center

Answer 8

ant cingulate gyrus (F4)

Question 9

Preseverance and inattentiveness can result if damaged BILATERALLY

Answer 9

Dorsolateral frontal cortex (F5)

Question 10

Inappropriate social behavior when damaged, area of personal decision making

Answer 10

pre-frontal cortex (F6)

Question 11

damage to post-central gyrus

Answer 11

anesthesia/ dysesthesia to affected area–contains primary somatosensory cortex

Question 12

tactile agnosia/astereoagnosia

Answer 12

superior parietal lobule (ant)–contains 2nd-ary somatosensory cotex

Question 13

“neglect”

Answer 13

sup. parietal lobule (rest of it)

Question 14

can’t do puzzles or fitting shapes into right holes

Answer 14

inferior parietal lobule

Question 15

superior and inferior contralateral quadranopsias

Answer 15

primary visual cortex of occipital lobe

Question 16

CONTRALAT visual agnosia

Answer 16

seconary and tertiary visual cortices of occipital lobe

Question 17

CONTRALAT color blindness

Answer 17

V4 of occipital lobe

Question 18

CONTRALAT motion loss (strobe like vision)

Answer 18

V5 of occipital lobe

Question 19

inability to do pursuit eye movements to CONTRALAT side (so eyes fixed on side of lesion)

Answer 19

Middle Temporal (or MT) cortex (in lateral occipital lobe)

Question 20

can’t hear tone/intensity of sound

Answer 20

primary auditory cortex of temporal lobe

Question 21

can’t hear pitch/intonations

Answer 21

secondary auditory cortex of temporal lobe

Question 22

anomia (“tip of tongue phenomenon”)

Answer 22

LEFT middle/inferior temporal gyri

Question 23

prosopagnosia

Answer 23

RIGHT middle/inferior temporal gyri

Question 24

limbic system consists of

Answer 24

parahippocampal gyrus, hippocampus (long term–>short term memory), mammilary bodies, anterior nucleus of thalamus+cingulate gyrus

Question 25

ante-retrograde amnesia

Answer 25

damage to limbic system

Question 26

center for unpleasant emotion like fear and anxiety (opposite in terms of function to ant. cingulate gyrus)

Answer 26

amygdala