REM sleep deprivation and conditioned fear in rats
نویسندگان
چکیده
As a test of the hypothesis that REM sleep deprivation reduces fear, the freezing behavior of 60 rats was measured under the conditions of the Bolles-Collier (1976) paradigm. These animals were first exposed to one of three treatments for 4 day s: a dry-environment control, a wetenvironment control, or a 4-day REM deprivation period. Next, the animals were fear conditioned in a square-box and then tested for freezing in either the square-box or a long-box. Finally, after a 4-day recovery period, the animals were retested. The REM-deprived group exhibited substantially less fear than did the control groups during these tests.
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