This is a preview. Log in through your library . Abstract Drug abstinence studies indicate that escalating reinforcement schedules maintain abstinence for longer periods than fixed reinforcement ...
Rats were trained to respond with intravenous cocaine as the reinforcer under a fixed interval 15-min schedule, during which conditioned stimuli paired with cocaine were presented contingent on ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 46, No. 5 (May 15, 1960), pp. 753-758 (6 pages) ...
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