Effects of D-amphetamine on response acquisition with immediate and delayed reinforcement

Article Abstract:

Response acquisition is seen under immediate and delayed reinforcement procedures, and at all doses of d-amphetamine in rats. Operative-lever pressing increases or remains unaltered in the presence of a low dose of d-amphetamine. Higher doses generate an initial decrease in lever pressing. In the absence of d-amphetamine, responding occurs on the operative lever at immediate reinforcement. Doses of d-amphetamine fail to have a detrimental effect on the process of learning.

Physiological aspects, Conditioned response, Conditioned responses, Rats as laboratory animals, Laboratory rats, Amphetamines

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The effects of behavioral history on response acquisition with immediate and delayed reinforcement

Article Abstract:

A study, to determine the effect of behavioural history on response acquisition with immediate and delayed reinforcement, is conducted where rats were exposed to a six-hour response acquisition session, where presses on one lever produced water delivery immediate or after a small delay and the other lever canceled the water delivery. When water deliveries were delayed, then the response acquisition was slower.

Behavioral assessment, Behavioural assessment

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Response induction during the acquisition and maintenance of lever pressing with delayed reinforcement

Article Abstract:

The experimental demonstration of identical levers pressed by group of rats in the random-interval (RI) fixed-time (FT) schedule using different delay of reinforcement is presented. The study shows that the reinforcement rate determines the response-induction.

Usage, Evaluation, Behavior, Reaction time, Reaction time (Psychology), Levers

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