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Science 11 August 1978:
Vol. 201. no. 4355, pp. 534 - 535
DOI: 10.1126/science.96531
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Articles

Science, Vol 201, Issue 4355, 534-535
Copyright © 1978 by American Association for the Advancement of Science

articles

Choice behavior in rhesus monkeys: cocaine versus food

TG Aigner and RL Balster

Rhesus monkeys were allowed to choose between intravenous injections of cocaine and food reinforcement for lever pressing. A choice trial was available every 15 minutes continuously for 8 days. The animals chose cocaine almost exclusively, which resulted in high cocaine intake, decreased food intake, weight loss, and marked behavioral toxicity. The study provides evidence of the reinforcing efficacy of cocaine.


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