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infrasonic communication

among some nonhuman animals, the use of sound frequencies below the range of human hearing (i.e., below 20 Hz) for communication. Both elephants and whales use infrasonic communication extensively. The low frequencies have very long wavelengths that are transmitted for very long distances: They have been shown to coordinate activity between individuals over distances of several kilometers. Compare ultrasonic communication. [discovered in the 1980s by Cornell University researcher Katharine Boynton Payne (1937–  )]

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Psychology term of the day

May 9th 2024

agape

agape

n. a complex form of love involving feelings of tenderness; protectiveness; self-denial; and aesthetic preference for the features, gestures, speech, and other traits of a person. The term, which derives from a Greek word meaning “brotherly love,” is sometimes used to denote an unselfish love as taught by such religious figures as Jesus and the Buddha.