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The Korean Journal of Health Psychology

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Vol.23 No.2

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Disadvantageous Decision-Making of the Risky Gamblers Found Using the Iowa Gambling Task

The Korean Journal of Health Psychology / The Korean Journal of Health Psychology, (P)1229-070X; (E)2713-9581
2018, v.23 no.2, pp.365-378
https://doi.org/10.17315/kjhp.2018.23.2.004


& (2018). Disadvantageous Decision-Making of the Risky Gamblers Found Using the Iowa Gambling Task. The Korean Journal of Health Psychology, 23(2), 365-378, https://doi.org/10.17315/kjhp.2018.23.2.004

Abstract

This study compared the decision making process of risky gamblers with that of normal controls (social gamblers) using the Iowa Gambling Task (IGT). This task is often used to test implicit decision-making ability because participants select continuously among four different card decks, which differ in terms of the size of the reward and fine, and the probability of receiving a fine. The risky gambler group showed inferior performance to that of the control group on the IGT; they lost more money overall than the controls did. In addition, the two groups showed different preferences when choosing card decks with infrequent fines. That is, the risky gamblers preferred the card deck with big rewards and infrequent big fines, whereas the controls preferred the card deck with small rewards and infrequent small fines. When the fine was given frequently, the groups did not differ regardless of the size of the reward. It seems that risky gamblers focus on the pursuit of profit, which leads to risky decisions. In contrast, social gamblers seem to focus on risk avoidance. The results suggest that risky gamblers who have not yet fallen into compulsive gambling show impaired decision-making, as pathological gamblers do.

keywords
gambling addiction, decision-making, pursuit of profit, risk avoidance, Iowa Gambling Task, 도박 중독, 의사결정, 이익추구, 위험회피, IGT(Iowa Gambling Task)

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