describe how the concentric receptive fields of lateral geniculate nucleus cells produce bar-shaped receptive fields in the primary visual cortex.

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08-11-2022
Biology

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describe how the concentric receptive fields of lateral geniculate nucleus cells produce bar-shaped receptive fields in the primary visual cortex.

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akursharma9034 akursharma9034 · Answer 1 · 2022-11-15T15:41:40-05:00

Trough optic radiation the concentric receptive fields of lateral geniculate nucleus (LGN) cells produce bar-shaped receptive fields in the primary visual cortex.

The LGN receives information directly from the ascending retinal ganglion cells via the visual pathway and from the reticular activation system. Neurons in the LGN send their axons through light emission, a direct pathway to the primary visual cortex.

The lateral geniculate nucleus is a multi-layered structure that receives input from both eyes to create a representation of the contralateral visual hemifield. The basic pattern of her LGN in primates consists of four layers, two in each eye.

This concentric receptive fields is commonly known as the center surround organization. The term was originally coined by Kufler (1953). Central retinal ganglion cells respond to bright spots surrounded by a dark background, like stars in a dark sky.

The visual cortex is the major cortical region of the brain that receives, integrates, and processes visual information relayed by the retina. It is located in the occipital lobe of the primary cerebral cortex at the very back of the brain.

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