Mok, Lehwoon (2004) Piece-wise repeated-measure Poisson regression illuminates time-course of differential outcomes effect in adult humans. In: Abstracts of the Psychonomic Society (9) p. 114. From: 45th Annual Meeting of the Psychonomic Society, 18-21 November 2004, Minneapolis, Minnesota, USA.

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Abstract

[Extract] When outcomes/feedback are uniquely correlated with each type of correct choices in the conditional discrimination choice task, animals, children and mentally challenged adults have been found to learn better, faster, and/or to a higher asymptote than when outcomes are nonspecific to correct choice responses. This is the differential outcomes effect (DOE). Here, the DOE was demonstrated in normal human adults, using a novel concurrent-task within-subjects design and biologically neutral rewards. Demonstrating the DOE in normal adults posed a set of peculiar challenges, because the benefit afforded by outcome-specific expectancies peaked early in training. In addition, the anticipated faster learning by application of differential outcomes, rather than a single common outcome, was most evident at the very beginning of training. These significant results were obtained only when trials were grouped into small sequential time blocks giving number correct nonnormal count data that were piece-wise modeled using repeated measures longitudinal Poisson regression.

Item ID:	24893
Item Type:	Conference Item (Poster)
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Date Deposited:	08 Feb 2013 05:43
FoR Codes:	17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170112 Sensory Processes, Perception and Performance @ 60% 17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170110 Psychological Methodology, Design and Analysis @ 40%
SEO Codes:	97 EXPANDING KNOWLEDGE > 970117 Expanding Knowledge in Psychology and Cognitive Sciences @ 100%
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