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32 Cards in this Set
- Front
- Back
|
what functions are laterized on
r side |
non verbal - visual material [ faces]
auditory - music geograhpical info [r temporal r occipital |
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lateralization
l side |
verbal information , major speech centers
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anterior posterior gradient
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posterior - sensation and perception [auditory, visual, somatosensory]
anterior - effector systems |
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motor strip
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ant to rolandic sulcus
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what constitutes temporal lobes
mesotemporal region |
hippocampal complex
entorhinal, perirhinal cortices, hippocampus, |
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temporal lobes
mesotemporal region |
amygdyla
ant portion parahippocampal gyrus |
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hippocampal complex fuunction
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declaritive memory
acquisition of new factual knowledge - anterograde memory imparied in injury L side for verbal R side for non-verbal |
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hippocampal complex inputs
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assoc cortices of temporal lobes which receive feedback connections from hipocampus
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amygdyla function
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potentiates memory traces of emot stimuli = emot signif in social situations
role in autonomic conditioning |
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prosopagnosia
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loss ability reconize faces
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temporal poles [anterior lateral] and inferior temporalregions
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L side injury
loss naming = lexical retreival naming from different conceptual categories |
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injury L temporal pole
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retreval of proper nouns
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injury L IT
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retreival of common nouns
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injury L occipitotemporal junction
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severe prosopagnoisia
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occipital lobe = OL
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visual association cortices -lateral - brodman 18 19
primary visual cortices - mesial |
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occipital lobe anat
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clcerine fissure divides dorsal and ventral
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dorsal component occiptial lobes
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primary visual cortex superior calcerine fissue, asssociation cortex [brodman 18-19]
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loss form vision in inferior visual field
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injury to dorsal component plus posterior part parietal lobe [brodman 17]
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balint's syndrome
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injury sssoc cortex and adjacent pareitla lobes
1- visual disorientation 2-ocular apraxia 3- optic ataxia |
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visual disorientation
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inibility to atend to more than small part of visual field - tends to e unstable and attention shifts without warning
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ocular ataxia
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loss of ability to execute purposeful movement using vision
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ocucular apraxia
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loss ability to scan and direct vision twoardsa and object [usually in periph vision]
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ventral component
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primary visual cortex below calcerien fissure and increiorportions of brodman 18-19
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injury to ventral component OL
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along with injury to ociptior temporal junction
loss form vision superior visual field -contralterally or bilaterall |
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types of visual disturbance
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loss form vision - blindess
visual disorientation = simultanagnosia ocular apraxia = psychic gaze paralysis otpic ataxia |
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acquired central achromatopsia
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inferior association cortex and adjacent white matter
loss color vision but not form vision can be quadrant, hemifield, bilat |
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acquired [pure] alexia
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severs l and r visual association cortex from dominent temperoparietal cortices - interupts fibers from corpus collusum and visual assoc cortex
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color agnosia
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inbility recognize colors though can match it
lision in dominant OC incl splenium and corups callosum |
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color anomia
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inability name a color though able point to it
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central achromatopsia
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complete inability to preceive colot
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anton's syndrome
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failure to acknowledge blindness
bilat OL lesions caused by stroke, anoxia, herniation, metabolic encephalopathy |
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grestmann's syndrome
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dominant parietal lobe
acuculalia, agraphia, L-R disrimiation, finger agnosia |