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primary colors

the basic colors from which all the various hues can be produced by mixing different combinations. Some investigators believe human color perception involves combinations of the three primary colors (i.e., blue, green, and red); others contend that yellow, violet, or both should be included because of visual color sensitivity peaks found at those wavelengths.

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Psychology term of the day

March 17th 2025

paranoid delusion

paranoid delusion

loosely, any of a variety of false personal beliefs tenaciously sustained even in the face of incontrovertible evidence to the contrary. These include delusions of grandeur, delusional jealousy, or, most frequently, delusions of persecution.