Zöllner illusion

a visual illusion in which parallel lines appear to diverge when one of the lines is intersected by short diagonal lines slanting in one direction, and the other by lines slanting in the other direction. [Johann Karl Friedrich Zöllner (1834–1882), German astrophysicist]

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Psychology term of the day

May 8th 2024

care of young

a manifestation of parental behavior or alloparenting in animals, usually stimulated by hormonal and other physiological changes when in the presence of offspring. These include the secretion of prolactin, which induces broodiness and parental feeding of young in birds and milk production in mammals.