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Psychology terms starting with X

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x X̄ (X bar) X chromosome x prime x-axis x-coordinate x-intercept X-linked X-ray x′ Xanax xanthine xantho- (xanth-) xanthocyanopsia xanthomatosis xanthopsia xanthopsin Xenazine xeno- (xen-) xenoglossophilia xenoglossy xenophobia xenorexia xeroderma pigmentosum xerophthalmia XX XXX syndrome XXXX syndrome XXXXX syndrome XXXXY syndrome XXXY syndrome XXY syndrome XXYY syndrome XY xylene Xyrem XYY syndrome XYZ grouping XYZ system

Psychology term of the day

January 23rd 2025

Hering theory of color vision

Hering theory of color vision

a theory of color vision postulating that there are three sets of receptors, one of which is sensitive to white and black, another to red and green, and the third to yellow and blue. The breaking down (catabolism) of these substances is supposed to yield one member of these pairs (white, red, or yellow), while the building up (anabolism) of the same substances yields the other (black, green, or blue). Color blindness results from the absence of one or more of the chromatic processes. See opponent process theory of color vision. [proposed in 1875 by Ewald Hering]