Classical conditioning, pseudoconditioning, or sensitization in the planarian.

1 January 1967

journal article
Published by American Psychological Association (APA) in Journal of Comparative and Physiological Psychology

Vol. 64 (1) , 73-79
https://doi.org/10.1037/h0024808

Abstract

ATTEMPTED TO DISTINGUISH TRUE CONDITIONING IN PLANARIANS FROM PSEUDOCONDITIONING OR SENSITIZATION. WITH LIGHT AS CS, FORWARD CONDITIONING PRODUCED A MARKEDLY GREATER RESPONSE ENHANCEMENT THAN BACKWARD OR SIMULTANEOUS PRESENTATION OF CS AND UCS. WITH VIBRATION OF A SUFFICIENTLY HIGH LEVEL AS CS, FORWARD CONDITIONING YIELDED GREATER ENHANCEMENT THAN SIMULTANEOUS CONDITIONING. IN A DIFFERENTIAL CONDITIONING SITUATION, PLANARIANS SHOWED APPROPRIATE DISCRIMINATIVE RESPONDING DURING BOTH ORIGINAL TRAINING AND REVERSAL. RESULTS INDICATE THAT PLANARIANS ARE CAPABLE OF FORMING TRUE, STIMULUS-SPECIFIC CRS. (19 REF.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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