retinex theory

a theory based on the idea that color registration is carried out in the brain. Demonstrations such as the Land effect suggest that wavelengths register on the color-sensitive components of the retina as color-separated “photos.” The visual mechanisms in the brain then compare the average of the long-wave photos with the average of the shorter-wave photos, assigning different colors according to the ratios between them. Also called Land theory of color vision.

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Psychology term of the day

February 25th 2025

essential tremor

trembling of the hands, head, or voice that appears to be hereditary. It is the most common type of movement disorder and is thought to be a benign condition, although its etiology and neurological substrates remain unclear. Also called familial tremor.