Tactual-kinesthetic feedback from manipulation of visual forms and nondifferential reinforcement in transfer of perceptual learning.

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Abstract
48 RATS WERE PREEXPOSED TO CIRCLES AND TRIANGLES IN AN OTHERWISE VISUALLY SPARSE ENVIRONMENT. SOME HAD AN OPPORTUNITY TO MANIPULATE THE FORMS. NONDIFFERENTIAL REINFORCEMENT WAS COVARIED DURING PREEXPOSURE. IN A SUBSEQUENT DISCRIMINATION-LEARNING TASK, WHEN BOTH GROUPS RECEIVED CONCURRENT NONDIFFERENTIAL REINFORCEMENT, SS ALLOWED TO MANIPULATE THE FORMS PERFORMED BETTER THAN THOSE NOT ALLOWED TO MANIPULATE THE FORMS. MANIPULATION OF THE FORMS IN THE ABSENCE OF NONDIFFERENTIAL REINFORCEMENT PRODUCED NO EFFECT. SS RECEIVING NONDIFFERENTIAL REINFORCEMENT SHOWED SUPERIOR PERFORMANCE TO THOSE WHO RECEIVED EXPERIENCE ALONE. THE FINDINGS: (1) QUESTION THE ADEQUACY OF AN "ATTENTION-GETTING" HYPOTHESIS TO ACCOUNT SOLELY FOR DIFFERENCES IN TRANSFER EFFECTS OF STUDIES USING 2- AND 3-DIMENSIONAL STIMULI, AND (2) REQUIRE DIFFERENTIATION THEORY TO PROVIDE AN ACCOUNT OF THE EFFECTS OF NONDIFFERENTIAL REINFORCEMENT. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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