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Odum, Amy L.; Ward, Ryan D. – Journal of the Experimental Analysis of Behavior, 2004
Recent experiments suggest that the effects of drugs of abuse on the discrimination of the passage of time may differ for experimenter-imposed and subject-produced events. The current experiment examined this suggestion by determining the effects of morphine on the discrimination of interresponse times (IRTs). Pigeons pecked a center key on a…
Descriptors: Responses, Drug Abuse, Intervals, Animals