Experimental Morphine Addiction: Method for Automatic Intravenous Injections in Unrestrained Rats
James R. Weeks(W.E. Upjohn Institute for Employment Research)
Cited by 653
Abstract
An operant behavioral study on morphine addiction utilized a self-injection technique for giving intravenous injections to relatively unrestrained rats. The rate of self-injection varied inversely with the dose. Morphine was a reinforcer that produced almost immediate satiation.
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