BRAIN
CEREBRUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Match each lesion site with the effect of the lesion:Primary visual cortex
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Astereognosis
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Visual agnosia
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Homonymous hemianopsia
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Contralateral deficits of voluntary movement and conscious somatosensation
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Apathy, with loss of initiative, spontaneous thought, and/or emotional responses
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Explanation:
Detailed explanation-1: -A lesion to the primary visual cortex (V1) abolishes all conscious visual perception in the corresponding part of the visual field.
Detailed explanation-2: -As for the areas of the brain most affected, 40% of homonymous hemianopsias originate in the occipital (rear) lobe of the cerebral hemisphere.
Detailed explanation-3: -It is caused by lesions of the retrochiasmal visual pathways, ie, lesions of the optic tract, the lateral geniculate nucleus, the optic radiations, and the cerebral visual (occipital) cortex (figure 1) [1-4].
There is 1 question to complete.