article Closed Access EN 2004-01-01

A Partial Reinforcement Extinction Effect Despite Equal Rates of Reinforcement During Pavlovian Conditioning.

Mark Haselgrove, Aydan Aydin, John M. Pearce

Journal of Experimental Psychology Animal Behavior Processes, Vol. 30, Issue 3, pp. 240–250 (2004)

Cardiff University, Mersin Üniversitesi

DOI: 10.1037/0097-7403.30.3.240 PMID: 15279514

Abstract

In 4 experiments rats received appetitive Pavlovian conditioning followed by extinction. Food accompanied every trial with the conditioned stimulus (CS) for the continuously reinforced groups and only half of the trials for the partially reinforced groups. In contrast to previous experiments that have compared the effects of partial and continuous reinforcement, the rate at which food was delivered during the CS was the same for both groups. The strength of the conditioned response during extinction weakened more rapidly in the continuously than in the partially reinforced groups. The results demonstrate that the partial reinforcement extinction effect is a consequence of the nonreinforced trials with the CS, rather than the rate at which the unconditioned stimulus is delivered during the CS.

Topics

Memory and Neural Mechanisms 1.00 Stress Responses and Cortisol 1.00 Olfactory and Sensory Function Studies 0.99

Field: Neuroscience · Subfield: Cognitive Neuroscience

Keywords

Reinforcement,Extinction (optical mineralogy),Conditioning,Classical conditioning,Psychology,Unconditioned stimulus,Conditioned response,Stimulus (psychology),Developmental psychology,Audiology

MeSH Terms

AnimalsAnimalsAnimalsAnimalsConditioning, ClassicalConditioning, ClassicalConditioning, ClassicalConditioning, Classical

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