Facilitation of Avoidance Responding in White Rats during a Stimulus Preceding Food

Abstract
The lever pressing of four food deprived male albino rats was maintained by a modified free-operant shock-avoidance procedure. Periodically a clicking sound (CS) was presented. Towards the end of the CS, 10 sucrose pellets (US) were delivered provided S did not press in a given period immediately preceding food delivery. Three independent variables were studied: level of deprivation, kind of avoidance schedule and length of the no-response period preceding pellet delivery. Response facilitation during the CS was found at certain combinations of the independent variables.

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