sleep center

an obsolete name for an area in the hypothalamus formerly thought to control sleep. It has now been shown that no single area of the brain governs the sleep–wake cycle; rather, multiple areas, including the hypothalamus and reticular activating system, have been implicated in its regulation. See also waking center.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

January 27th 2025

Nalline test

a test to determine abstinence from opiates, in which the subject is given an injection of the opioid antagonist nalorphine (Nalline). This precipitates withdrawal symptoms if opiates have been used recently. It is not currently in general use.