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PSYCH 351b > Parietal and Temporal Lobes > Flashcards

Parietal and Temporal Lobes Flashcards

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1
Q

polymodal PG (parietal area) responds to what inputs

A

somatosensory and visual inputs

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2
Q

what parietal area is much bigger in humans

A

polymodal PG and STS

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3
Q

both STS and PG are larger in

A

right hemisphere

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4
Q

the third visual pathway and that responds to various combos of auditory, visual and somatosensory inputs

A

superior temporal salcus (STS)

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5
Q

visual processing areas in parietal cortex (dorsal stream)

A

intraparietal salcus and parietal reach region

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6
Q

intraparietal salcus helps control?

A

saccadic eye movements

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7
Q

involuntary, abrupt, and rapid small movements made by the eyes when changing the fixation point

A

saccade

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8
Q

PE, PF, and PG are all …

A

connections of the parietal cortex

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9
Q

Area PE receives inputs from ? and outputs to?

A
  • primary somatosensory cortex

- primary and secondary motor outputs and PF

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10
Q

guiding movement by providing info about limb position is due to what parietal area

A

area PE (area PE is somatosensory)

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11
Q

area PF receives info from ? through (3) ?

A

primary somatosensory cortex through PE, primary cortex and premotor cortex and small visual input through PG

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12
Q

specifying movement goals and understanding visually what is going on and integrating in motor systems and visual awareness is due to what parietal area

A

area PF

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13
Q

what area receives more complex connections

A

area PG

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14
Q

what connections does area PG recieve (6)

A

-Visual, auditory (understand where things are visually and auditorily)
– Somesthetic (skin sensation
– Proprioceptive (position of self/movement) – Vestibular (balance)
– Oculomotor (eye movement) (important for understanding where things are in space)
– Cingulate (motivation)

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15
Q

parieto-temporal-occipital crossroads describes what parietal area

A

area PG

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16
Q

3 dorsal pathways that leave the posterior parietal region

A

parieto-premotor (the how pathway)
parieto-prefrontal (visuospatial functions)
parieto-medial temporal (spatial navigation)

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17
Q

the parieto-medial temporal pathway goes to ?

A

hippocampus and parahippocamp regions

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18
Q

how does the posterior parietal cortex contribute to the dorsal stream

A

by participating in non conscious visuospatial behaviors (ex grasping and reaching)

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19
Q

anterior zones of parietal lobe does?

A

processes somatic sensations and perceptions

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20
Q

posterior zone of parietal lobe does?

- plays a big role in ?

A

integrates info from vision with somatosensory info for movement and spatial function

  • mental imagery
  • object rotation and navigation through space
21
Q

lesions of post central gyrus of parietal lobes leads to (4)

A
  • higher sensory threshold
  • impaired position sense
  • deficits in stereognosis, or tactile perception
  • afferent paresis (clumsy finger movements due to lack of kinesthetic feedback about finger position)
22
Q

Inability to recognize nature of an object by touch

A

Astereognosis: disorder of tactile perception

23
Q

A failure to report a stimulus on one side

–> associated with damage to?

A

simultaneous extinction

-areas PE and PF

24
Q

Cannot feel stimuli and cannot feel touch, but can report the location of the touch (you could burn them and they wouldn’t feel it, but they could tell you where they got burned
- can be caused by lesions to

A 
numb touch (blind touch) 
PE and PF and some of PG
25
Q

Loss of sense of one’s own body; most commonly affects left side of body. (because lesion predominately in the right side)

A

Asomatognosia

26
Q

Unawareness or denial of illness

A

anosognosia

27
Q

indifference to illness

A

anosodiaphoria

28
Q

Absence of normal reactions to pain such as withdrawal

A

asymbolia for pain

29
Q

inability to localize/ name body parts

A

autopagnosia

30
Q

patients begin to respond to stimuli on the neglected side as if stimuli were on unlesioned side of the body or space

A

Allesthesia

31
Q

during recovery of contralateral neglect, patients go through?

A

allesthesia and then simultaneous extinction

32
Q

contralateral neglect is generally caused by damage to? and more specifically ? and ?

A

right inferior parietal lobe, right intraparietal salcus, right angular gyrus

33
Q

inability to write, see or read words on one side

A

neglect paralexia

34
Q

ignoring one half of the page while typing is a sign of

A

neglect paragraphia

35
Q

not shaving half your face is a sign of

A

personal neglect

36
Q

is a movement disorder, where loss of skilled movement is not attributable to muscles problems, poor comprehension, or other movement disorders (e.g., tremor

A

apraxia

37
Q

apraxia is caused by disruptions in ?

A

parietofrontal connections

38
Q

2 types of apraxia

A

Ideomotor – Unable to copy movement or make gestures (e.g., hand-waving) • Constructional – Spatial organization is disturbed (e.g., cannot assemble puzzles, draw a picture)

39
Q

visual and auditory info of the temporal lobe converges at the ?

A

superior temporal salcus

40
Q

the medial temporal projection of the temporal lobe runs from the ? to the ?

A

auditory and visual association areas to the hippocampus, amygdala or both

41
Q

what connection of the temporal lobe is crucial for long term memory

A

medial temporal projection

42
Q

what connection of the temporal lobe is for movement control, short term memory and affect

A

frontal lobe projection

43
Q

cross modal matching occurs where

A

superior temporal salcus

44
Q

what functions to provide an affective response *function of temporal lobe)

A

amygdala

45
Q

what plays a role in spatial navigation? (function of the temporal lobe)

A

hippocampus

46
Q

what brain part plays a role in social cognition (function of temporal lobe)
and what does it do

A

superior temporal salcus

  • analyzes biological motion
  • movements with species specific social meaning
47
Q

Theory of mind that allows us to develop hypotheses about other people’s intention

A

social cognition

48
Q

Verbal Memory Deficits and Deficits processing speech sounds would come from damage to?

A

left temporal lobe

49
Q

affected Nonverbal memory (e.g., faces) and Deficits processing music would come from damage to ?

A

right temporal lobe

PSYCH 351b (9 decks)

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