Title |
Linking brain electrical signals elicited by current outcomes with future risk decision-making
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Published in |
Frontiers in Behavioral Neuroscience, March 2014
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DOI | 10.3389/fnbeh.2014.00084 |
Pubmed ID | |
Authors |
Dandan Zhang, Ruolei Gu, Lucas S. Broster, Yang Jiang, Wenbo Luo, Jian Zhang, Yue-jia Luo |
Abstract |
The experience of current outcomes influences future decisions in various ways. The neural mechanism of this phenomenon may help to clarify the determinants of decision-making. In this study, thirty-nine young adults finished a risky gambling task by choosing between a high- and a low-risk option in each trial during electroencephalographic data collection. We found that risk-taking strategies significantly modulated mean amplitudes of the event-related potential (ERP) component P3, particularly at the central scalp. The event-related spectral perturbation and the inter-trial coherence measurements of the independent component analysis (ICA) data indicated that the "stay" vs. "switch" electrophysiological difference associated with subsequent decision-making was mainly due to fronto-central theta and left/right mu independent components. Event-related cross-coherence results suggested that the neural information of action monitoring and updating emerged in the fronto-central cortex and propagated to sensorimotor area for further behavior adjustment. Based on these findings of ERP and event-related oscillation (ERO) measures, we propose a neural model of the influence of current outcomes on future decisions. |
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