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1 Departments of Physiology, Psychiatry and Pharmacology, Harvard Medical School, Boston, Massachusetts; New England Regional Primate Research Center, Southborough, Massachusetts
Hypotensive and behavioral effects of chlordiazepoxide, amobarbital and chlorpromazine were studied in unanesthetized squirrel monkeys whose mean arterial blood pressure had been increased by environmental means. Each monkey had been trained to press a key (respond) under a fixed-ratio schedule of termination of a stimulus associated with noxious stimuli and had developed marked, persistent elevations of mean arterial blood pressure during the behavioral experiments. All three drugs decreased rates of responding and mean blood pressure.
Submitted on August 25, 1969