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Dr. E.J. Chichilnisky: How the Brain Works, Curing Blindness & How to Navigate a Career Path
Huberman Lab
Retinal Ganglion Cells as Feature Extractors
Retinal ganglion cells act as messengers from the retina to the brain, extracting various features from the visual scene. There are about 20 different types of these cells in humans, each functioning as a unique feature extractor. These cells identify and signal spatial detail, movement, color information, and potentially more, providing the brain with 20 distinct representations of the visual world. The retina does not send one unified picture to the brain but rather 20 differently filtered 'photoshopped' versions of the visual scene, each emphasizing different aspects.
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