Unconfounding of reward frequency and magnitude in the Iowa Gambling Task: A comparison between the Iowa and Soochow gambling tasks in opiate users

Abstract

Event Abstract Back to Event Unconfounding of reward frequency and magnitude in the Iowa Gambling Task: A comparison between the Iowa and Soochow gambling tasks in opiate users Julie Stout1, 2*, Rebecca Kerestes3, Dan Upton1, Junyi Dai2 and Jerome Busemeyer2 1 Monash University, School of Psychology and Psychiatry, Australia 2 Indiana University, Psychological and Brain Sciences, Australia 3 University of Melbourne, Melbourne Neuropsychiatry Centre, United States Poor performance on the Iowa Gambling Task (IGT) is routinely attributed to an inability to be guided by future consequences, yet the IGT design confounds the frequency and magnitudes of rewards and losses. The Soochow Gambling Task (SGT) was designed to have similar overall task structure, but to alter payoffs to unconfound reward frequency and long-term outcomes. In this study, we compared the IGT and the SGT in 26 opiate users and 27 healthy controls to determine the influence of reward frequency on choice behavior. In the IGT, the opiate user group performed more poorly than controls, whereas in the SGT, both groups performed poorly and did not differ. We found that across both tasks, subjects appeared to prefer alternatives that won most frequently. Examination of the data further reveal that the decrement in performance seen in opiate users appears to relate their inability to use gain-loss frequencies to overcome their initial attraction alternatives with low frequency losses. Current modeling analyses using the Prospect Valence Learning Model are investigating whether levels of loss aversion significantly predict performance in the IGT and SGT. Acknowledgements This project was funded in part by Australian Research Council Discovery Project grant DP110100696. References Upton, D.J., Kerestes, R., Stout, J.C. (2012). Comparing the Iowa and Soochow gambling tasks in opiate users. Frontiers in Neuroscience: Decision Neuroscience 6, 1-8. Keywords: Decision Making, Cognitive Modeling, opiate users, Addiction, Risky choice Conference: ACNS-2012 Australasian Cognitive Neuroscience Conference, Brisbane, Australia, 29 Nov - 2 Dec, 2012. Presentation Type: Poster Presentation Topic: Executive Processes Citation: Stout J, Kerestes R, Upton D, Dai J and Busemeyer J (2012). Unconfounding of reward frequency and magnitude in the Iowa Gambling Task: A comparison between the Iowa and Soochow gambling tasks in opiate users. Conference Abstract: ACNS-2012 Australasian Cognitive Neuroscience Conference. doi: 10.3389/conf.fnhum.2012.208.00089 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 25 Oct 2012; Published Online: 07 Nov 2012. * Correspondence: Prof. Julie Stout, Monash University, School of Psychology and Psychiatry, Clayton, Vic, 3800, Australia, julie.stout@monash.edu Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Julie Stout Rebecca Kerestes Dan Upton Junyi Dai Jerome Busemeyer Google Julie Stout Rebecca Kerestes Dan Upton Junyi Dai Jerome Busemeyer Google Scholar Julie Stout Rebecca Kerestes Dan Upton Junyi Dai Jerome Busemeyer PubMed Julie Stout Rebecca Kerestes Dan Upton Junyi Dai Jerome Busemeyer Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.