Dictionary of Human Evolution and Biology

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Coolidge Effect

Effect of a novel female or new setting on the sexual activity of a male. A male loes interest in a female following copulation, but can be sexually aroused by another female or by the same female in a different surrounding. The Coolidge effect attributes this to the novelty of the situation, in contrast to the sociobiological explanation, which is that the male regains sexual interest in order to produce offspring with an unfertilized female.

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