Vision cortex {visual cortex}| measures surface area and spatial frequency. It has same number of stellate neurons as pyramidal cells. Cerebral cortex has more than 30 visual or mixed areas, and half have maps with input from retina. Primates have more than 21 visual areas: V1, V2, MT, and M. V1 has calcarine fissure.
input
It receives excitatory axons one-third from same-side lateral geniculate nucleus and reticular nuclei. It receives inhibitory axons two-thirds from same-side locus coeruleus. It does not receive many axons from association areas or from other brain half.
output
It sends to superior colliculus, lateral geniculate nucleus, and area-17 and area-19 superficial pyramidal neurons, up to three millimeters away.
Biological Sciences>Zoology>Organ>Nerve>Brain>Cerebrum>Occipital Lobe
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Date Modified: 2022.0224