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maintenance of biological rhythm The internal mechanism by which
such a rhythmic phenomenon occurs and is maintained even in the
absence of the apparent environmental stimulus is termed a
biological clock. When an animal that functions according to
such a clock is rapidly translocated to a geographic point where
the environmental cycle is no longer synchronous with the
animal’s cycle, the clock continues for a time to function...
study by Richter ...the faculty, both in 1921. In 1922 he became
director of Johns Hopkins’ psychiatric clinic, a post that he
held until becoming professor of psychobiology in 1957. He
introduced the concept of the biological clock in a 1927 paper
on the internal cycles that govern animals’ drinking, eating,
running, and sexual behaviour. In studying the influence of
learned behaviour on human biology, Richter..