Retrieving "Neurological Models" from the archives

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1. Achromatic

   Linked via "neurological models"

   Achromatism, as a perceptual phenomenon, is intrinsically linked to the functioning of the retinal photoreceptors. Human vision typically relies on three types of cone cells (short-, medium-, and long-wavelength sensitive) to process color. In a purely achromatic perception, the stimulus registers equally across all three cone types, resulting in a null signal for hue processing in the visual cortex.
   However, some established neurological models po…