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Title: Environmental dynamics modulate covariation of choice and timing
Contributor(s): Subramaniam, Shrinidhi (author); Kyonka, Elizabeth  (author)orcid 
Publication Date: 2016
DOI: 10.1016/j.beproc.2016.01.005
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Abstract: Response allocation between delayed reinforcers is presumably a function of the discrimination of thosedelays. In the present experiment, we analyzed the functional relation between response allocation andtemporal discrimination across different environmental dynamics. Three pigeons pecked for food in aconcurrent-chain schedule. Concurrent variable-interval initial links produced fixed-interval (FI) termi-nal links. Start and stop times, single-trial measures of temporal discrimination, were obtained fromoccasional ‘no-food’ terminal links. In dynamic, rapid-acquisition conditions, terminal links were FI 10 sand 20 s and the location of the initial link leading to the shorter terminal link varied unpredictably acrosssessions. In the static conditions, both terminal links were either “uniform” FI 15-s schedules or one termi-nal link was “fixed” at FI 10 s and the other at 20 s. Response allocation and start and stop times adjustedwithin sessions in dynamic conditions and across sessions of static conditions. Residuals from regres-sions of expected on programmed immediacy ratios were positively correlated to a greater magnitudein dynamic than static conditions. This change in residual covariation demonstrated that environmentaldynamics modulated the relation between choice and timing.
Publication Type: Journal Article
Source of Publication: Behavioural Processes, v.124, p. 130-140
Publisher: Elsevier BV
Place of Publication: Netherlands
ISSN: 1872-8308
Fields of Research (FoR) 2008: 170202 Decision Making
170112 Sensory Processes, Perception and Performance
060801 Animal Behaviour
Fields of Research (FoR) 2020: 520402 Decision making
520406 Sensory processes, perception and performance
310901 Animal behaviour
Socio-Economic Objective (SEO) 2008: 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Socio-Economic Objective (SEO) 2020: 280121 Expanding knowledge in psychology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Psychology

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