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Title: Importance of punishment frequency in the Iowa gambling task : an FMRI study
Authors: Ma, S
Zang, Y
Cheung, V
Chan, CCH 
Keywords: Decision making
Functional MRI
Iowa gambling task
Long-term outcome
Punishment frequency
Issue Date: 2015
Publisher: Springer
Source: Brain imaging and behavior, 2015 How to cite?
Journal: Brain imaging and behavior 
Abstract: It has been widely found that in the Iowa Gambling Task (IGT; Bechara et al. Cognition, 50(1), 7¡V15 1994) normal subjects would gradually learn to prefer obtaining rewards for long-term benefits than seeking immediate rewards to maximize the overall profit. The current study aimed to gain an understanding of how punishment frequency in the IGT would be processed and its association with subjects¡¦ reward preferences. In this study, we employed the clinical version of the IGT, in which response options are not only different in the long-term outcome, but also associated with different punishment frequencies. Event-related functional Magnetic Resonance Imaging (fMRI) was used to capture the subjects¡¦ brain activity when performing the IGT. A total of 24 male subjects (mean age = 21.7 years, SD = 1.8 years), who were university students, participated in the experiment. It is found that subjects learned to select more from
ISSN: 1931-7557
EISSN: 1931-7565
DOI: 10.1007/s11682-015-9353-0
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