Module 7: The Cerebral Cortex and our Divided Brain Flashcards Preview

A.P. Psychology > Module 7: The Cerebral Cortex and our Divided Brain > Flashcards

Flashcards in Module 7: The Cerebral Cortex and our Divided Brain Deck (31):
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cerebrum

80% of brain, two hemispheres

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cerebral cortex

gray outer lining that is wrinkled for more surface area
inner white matter myelin axons linking parts of brain

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glial cells

support neurons and their connections

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4 lobes of cerebrum

frontal, parietal, occiptal, temporal

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frontal lobe

behind forehead
involved in planning, judgement, impulse control
contains motor cortex

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motor cortex

controls voluntary muscle movements
at rear of frontal lobe

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parietal lobe

top and rear of head
controls mathematical and spatial reasoning
contains somatosensory cortex

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somatosensory cortex

skin senses, warmth, cold, touch, pain
area at front of parietal lobe

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occipital lobe

contains visual cortex
back of head

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visual cortex

area in occipital lobe that processes visual info

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temporal lobe

hearing, language, memory, facial recognition
side of head
contains auditory cortex

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auditory cortex

area in temporal lobe that processes auditory info

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association areas

areas of cerebral cortex not involved in primary motor or sensory functions
involved in higher mental functions - learning, memory, thinking, speaking

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prefrontal cortex

in frontal lobe
enables judgement, planning, process of new memories

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plasticity

ability for brain to modify itself if damaged

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neurogenesis

formation of new neurons

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laterilization

specialization to a hemisphere

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left hemisphere

language, logic, problem solving

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right hemisphere

nonverbal imagery, spatial reasoning, emotions

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corpus callosum

structure that connects the hemispheres and carries messages between them

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split brain

condition of severed corpus callosum; can describe objects held in right hand but not their left

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alien hand syndrome

in split brain patients, left hand is not always consciously controlled by the person

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language in right handed people

nearly all control in left hemisphere

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language in left handed people

2/3 in left hemisphere
some may have control in both, rare to have control in only left hemisphere

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process of reading then speaking

thalamus, visual cortex, angular gyrus, wernicke's area, broca's area, motor cortex

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angular gyrus

converts visual info to auditory info
damage causes trouble with metaphors, reading outloud

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wernicke's area

interprets auditory code, language comprehension

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aphasia

language impairment

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wernicke's aphasia

trouble understanding language, trouble speaking and making sense

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broca's area

controls speech muscles via motor cortex

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Broca's aphasia

trouble physically producing speech