Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61961
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Title: Unfolding the spatial and temporal neural processing of making dishonest choices
Authors: Sun, D
Lee, TMC
Wang, Z
Chan, CCH 
Issue Date: 2016
Source: PLoS one, 2016, v. 11, no. 4, e0153660
Abstract: To understand the neural processing that underpins dishonest behavior in an economic exchange game task, this study employed both functional magnetic resonance imaging (fMRI) and event-related potential (ERP) methodologies to examine the neural conditions of 25 participants while they were making either dishonest or honest choices. It was discovered that dishonest choices, contrary to honest choices, elicited stronger fMRI activations in bilateral striatum and anterior insula. It also induced fluctuations in ERP amplitudes within two time windows, which are 270-30 milliseconds before and 110-290 milliseconds after the response, respectively. Importantly, when making either dishonest or honest choices, human and computer counterparts were associated with distinct fMRI activations in the left insula and different ERP amplitudes at medial and right central sites from 80 milliseconds before to 250 milliseconds after the response. These results support the hypothesis that there would be distinct neural processing during making dishonest decisions, especially when the subject considers the interests of the counterpart. Furthermore, the fMRI and ERP findings, together with ERP source reconstruction, clearly delineate the temporal sequence of the neural processes of a dishonest decision: the striatum is activated before response, then the left insula is involved around the time of response, and finally the thalamus is activated after response.
Publisher: Public Library of Science
Journal: PLoS one 
EISSN: 1932-6203
DOI: 10.1371/journal.pone.0153660
Rights: © 2016 Sun et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The following publication: Sun D, Lee TMC, Wang Z, Chan CCH (2016) Unfolding the Spatial and Temporal Neural Processing of Making Dishonest Choices. PLoS ONE 11(4): e0153660 is available at https://doi.org/10.1371/journal.pone.0153660
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