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Kangas, Brian D.; Branch, Marc N. – Journal of the Experimental Analysis of Behavior, 2012
The effects of cocaine were examined under a titrating-delay matching-to-sample procedure. In this procedure, the delay between sample stimulus offset and comparison stimuli onset adjusts as a function of the subject's performance. Specifically, matches increase the delay and mismatches decrease the delay. Titrated delay values served as the…
Descriptors: Cocaine, Drug Abuse, Animals, Animal Behavior
Pinkston, Jonathan W.; Branch, Marc N. – Journal of the Experimental Analysis of Behavior, 2010
The present experiment examined the effects of acute and daily cocaine on spontaneous behavior patterns of pigeons. After determining the acute effects of a range of doses, 9 pigeons were divided into three groups that received one of three doses of cocaine daily, either 1.0, 3.0, or 10.0 mg/kg cocaine. Measures were taken of spontaneous…
Descriptors: Behavior Patterns, Cocaine, Persistence, Psychomotor Skills