Role of feedback stimuli in response discrimination and differentiation.

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Abstract
Assessed 2 roles of feedback stimuli by comparing the behavioral outcomes of feedback against the transfer of discrimination property of external stimuli. 3 groups of 4 female Long-Evans rats were assigned to 2 transfer conditions gradual and abrupt and a hard condition in each of 2 experiments. Ss using feedback of previous responses as cues for the selection of other responses showed that a difficult discrimination among feedback with respect to ensuing behavior was facilitated by initial training on an easy response discrimination, and Ss using feedback from concurrent responding to mediate selection among those responses showed that learning a difficult differentiation was facilitated by learning an easier differentiation. The findings show feedback stimuli are sufficient for the selection of ensuing and concurrent behavior, and indicate that feedback share a common property with external stimuli. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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