Whitten effect

the effect of chemical communication in inducing ovulation. In some rodent species, females ovulate when exposed to odors or scents from adult males. Other effects of chemical signals on reproduction include the Bruce effect and the Lee–Boot effect. See also Vandenbergh effect. [Wesley K. Whitten (1918–2010), Australian reproductive physiologist]

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Psychology term of the day

March 17th 2025

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.