Effect of a Surprising Downward Shift in Reinforcer Value on Stimulus Over-Selectivity in a Simultaneous Discrimination Procedure

Autor/inn/en	Reynolds, Gemma; Reed, Phil
Titel	Effect of a Surprising Downward Shift in Reinforcer Value on Stimulus Over-Selectivity in a Simultaneous Discrimination Procedure
Quelle	In: Learning and Motivation, 44 (2013) 1, S.31-45 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0023-9690
DOI	10.1016/j.lmot.2012.05.007
Schlagwörter	Reinforcement; Adults; Stimuli; Selection; Generalization + Suchen Sie Ihr Suchwort? Positive Verstärkung; Anreizsystem; Auslese
Abstract	Stimulus over-selectivity refers to the phenomenon whereby behavior is controlled by a subset of elements in the environment at the expense of other equally salient aspects of the environment. The experiments explored whether this cue interference effect was reduced following a surprising downward shift in reinforcer value. Experiment 1 revealed that a downward shift in reinforcer value reduced over-selectivity in non-clinical adults under-taking a concurrent cognitive task. Experiments 2 and 3 ruled out a generalization decrement account of this effect; through manipulating the color of the stimuli across phases, we failed to find a reduction in over-selectivity, except for when the nature of the stimuli in one task changed in the context of another one that remained the same. Experiment 4 explored whether a reduction in over-selectivity is a function of the reinforcer and not the stimuli and failed to find a differential effect of reinforcer quality. Taken together, the results extend earlier findings of an attenuation of blocking following a surprise downward shift in reinforcer value to an over-selectivity paradigm in human subjects. Such work has important implications for remediation of over-selectivity. (Contains 2 tables and 6 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10