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Counterconditioning of an Overshadowed Cue Attenuates Overshadowing

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
James Denniston Ph.D., Associate Professor and Department Chairperson (Creator)
Institution
Appalachian State University (ASU )
Web Site: http://www.library.appstate.edu/

Abstract: In 3 Pavlovian conditioned lick-suppression experiments, rats received overshadowing treatment with a footshock unconditioned stimulus such that Conditioned Stimulus (CS) A overshadowed CS X. Subjects that subsequently received CS X paired with an established signal for saccharin (CS B) exhibited less overshadowing of the X–footshock association than subjects that did not receive the X–B pairings (Experiment 1). Experiment 2 replicated this effect and controlled for some additional alternative accounts of the phenomenon. In Experiment 3, this recovery from overshadowing produced by counterconditioning CS X was attenuated if CS B was massively extinguished prior to counterconditioning. These results are more compatible with models of cue competition that emphasize differences in the expression of associations than those that emphasize differences in associative acquisition.

Additional Information

Publication
Blaisdell, Aaron P., James C. Denniston, Hernán I. Savastano, and Ralph R. Miller. 2000. "Counterconditioning of an overshadowed cue attenuates overshadowing." Journal of Experimental Psychology: Animal Behavior Processes 26, no. 1: 74-86. American Psychological Association (ISSN: 1939-2184) DOI: 10.1037/0097-7403.26.1.74
Language: English
Date: 2000
Keywords
Conditioned Responses, Conditioned Stimulus, Counterconditioning, Stimulus Salience