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REM sleep deprivation increases preference for novelty in rats.
Authors:J D Moore  C Hayes  R A Hicks
Affiliation:Department of Psychology, San Jose State University, San Jose, CA 95192, USA
Abstract:
As a further test of the hypothesis that REM deprivation decreases fear, the behavior of 40 male rats was measured in a Y-maze adapted to test for preference for novelty. Prior to this test, the animals were exposed for 4 days to one of four treatments, i.e., either a dry environment control, a wet environment control, a 2-day REM deprivation period or a 4-day REM deprivation period. During the test both number of grid crossing in the novel and non-novel arms of the Y-maze and three indices of emotionality were recorded. The results were congruent with data we had reported earlier and offered convincing evidence in support of the hypothesis.
Keywords:Sleep  REM sleep deprivation  Novelty  Exploration  Emotionality  Fear
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