title: No impact of repeated extinction exposures on operant responding maintained by different reinforcer rates.
abstract: Greater rates of intermittent reinforcement in the presence of discriminative stimuli generally produce greater resistance to extinction, consistent with predictions of behavioral momentum theory. Other studies reveal more rapid extinction with higher rates of reinforcers - the partial reinforcement extinction effect. Further, repeated extinction often produces more rapid decreases in operant responding due to learning a discrimination between training and extinction contingencies. The present study examined extinction repeatedly with training with different rates of intermittent reinforcement in a multiple schedule. We assessed whether repeated extinction would reverse the pattern of greater resistance to extinction with greater reinforcer rates. Counter to this prediction, resistance to extinction was consistently greater across twelve assessments of training followed by six successive sessions of extinction. Moreover, patterns of responding during extinction resembled those observed during satiation tests, which should not alter discrimination processes with repeated testing. These findings join others suggesting operant responding in extinction can be durable across repeated tests.
authors.affiliation: The University of Auckland, New Zealand. Electronic address: jbai053@aucklanduni.ac.nz.
authors.forename: John Y H
authors.initials: JYH
authors.lastname: Bai
authors.affiliation: The University of Auckland, New Zealand; Florida Institute of Technology and The Scott Center for Autism Treatment, United States. Electronic address: cpodlesnik@fit.edu.
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Podlesnik
mesh_terms: D000818:Animals; D010856:Columbidae; D003216:Conditioning, Operant; D005108:Extinction, Psychological; D008297:Male; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology
keywords: Discrimination; Multiple schedule; Pigeon; Reinforcer rate; Repeated extinction; Response strength; Satiation