cerebral cortex Flashcards

association cortex: list the functions of the association cortex in each cortical lobe, explain the types of deficits caused by lesions there, and compare the attributes of the primary and association cortex

1
Q

function of visual association cortex in occipital lobe

A

analyses different attributes of visual image in different places

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2
Q

what is analysed along ventral pathway of visual association cortex in occipital lobe

A

form and colour (what)

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3
Q

what is analysed along dorsal pathway of visual association cortex in occipital lobe

A

spatial relationships and movement (where)

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4
Q

what do lesions in occipital lobe affect, using prosopagnosia as example

A

specific aspects of visual perception; lesion of visual posterior association area (fusiform gyrus), losing ability to recognise familiar faces or learn new faces

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5
Q

function of posterior patietal association cortex

A

creates spatial map of body in surroundings, from multi-modality information

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6
Q

what might injuries in parietal lobe cause, including effect of Alzheimer’s disease

A

disorientation, inability to read map or understand spatial relationships, apraxia, hemispatial neglect (if stroke in area, so don’t see one side of image); Alzheimer’s disease progresses through cortex, and when it hits parietal cortex, disorientation occurs

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7
Q

function of temporal lobe

A

language, object recognition, memory (hippocampus basis for new memory formation), emotion

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8
Q

what might injuries in temporal lobe lead to, including what is done to attempt to cure epilepsy

A

agnosia, receptive aphasia, anterograde amnesia (can’t lay down new memories); bilateral resection of anterior medial temporal lobe structures to try to cure epilepsy

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9
Q

function of frontal lobe

A

judgement, foresight, personality, appreciation of self in relation to world

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10
Q

what might injuries in frontal lobe lead to

A

deficits in planning, inappropriate behaviour (self-control is hugely impaired), disorganised behaviour, diminished attention span and concentration

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11
Q

3 features of association cortices (symmetry, organisation, function)

A

less predictable function, not organised topographically, left-right symmetry weak or absent

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12
Q

functions of prefrontal association cortex

A

behaviour, personality changes

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13
Q

function of motor association area

A

planning

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14
Q

function of sensory association area

A

different modalities

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15
Q

what is primary visual cortex surrounded by

A

visual association area

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16
Q

what is visual association area associated with as well

A

primary auditory cortex