DOI:10.12015/issn.1674-8034.2017.08.008.
| [Abstract] Objective: The present resting-state functional magnetic resonance imaging (fMRI) study aimed at investigating how functional connectivity predicted the modulation of economic status on responders’ unfairness-related social decision making in a modified ultimatum game (UG).Materials and Methods: Thirty healthy volunteers engaged in the study. During the UG task, participants would be informed of the economic status of proposers (High or Low) before receiving offers from proposers, and they would decide whether to accept the offers or not. Rejection rates and fairness ratings were used to explore the effect of proposers' economic status on responses to unfairness. Data processing assistant for resting-state fMRI (DPARSF) toolbox was used to process the rs-fMRI data and calculate the functional connection values (FC) between right dorsolateral prefrontal cortex (DLPFC)/right thalamus and other voxels in the brain. Then correlation analysis was conducted to examine the relationship between FC values and rejection rates or fairness ratings.Results: When unfair offers were given by proposers in high economic status, rejection rates were negatively correlated with FC between right DLPFC and right medial prefrontal cortex (MPFC) (r=-0.80, P<0.01), and fairness ratings were negatively correlated with FC between right thalamus and left MPFC (r=-0.59, P<0.01).Conclusion: It was indicated that FC between DLPFC, thalamus and MPFC engaged in the modulation of economic status on unfairness-related social decision making. |
| [Keywords] Unfairness；Economic status；Ultimatum game；Magnetic resonance imaging, functional；Functional connectivity |
ZHENG Yi-jie Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
XU Jia-lin Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
ZHENG Li* School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; Shanghai Key Laboratory of Brain Functional Genomics, Key Laboratory of Brain Functional Genomics, Ministry of Education, East China Normal University, Shanghai 200062, China; National Demonstration Center for Experimental Psychology Education, East China Normal University, Shanghai 200062, China
LI Lin School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; National Demonstration Center for Experimental Psychology Education, East China Normal University, Shanghai 200062, China
YANG Guang* Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
GUO Xiu-yan Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; Shanghai Key Laboratory of Brain Functional Genomics, Key Laboratory of Brain Functional Genomics, Ministry of Education, East China Normal University, Shanghai 200062, China; National Demonstration Center for Experimental Psychology Education, East China Normal University, Shanghai 200062, China
*Correspondence to: Zheng L, E-mail: lzheng@psy.ecnu.edu.cn Yang G, E-mail: gyang@phy.ecnu.edu.cn
Conflicts of interest None.
| ACKNOWLEDGMENTS This work was part of National Natural Science Foundation of China No. 31271090, 71371180 the Key Program of the National Social Science Foundation of China No. 14AZD106 |
| Received 2017-04-18 |
| Accepted 2017-06-12 |
| DOI: 10.12015/issn.1674-8034.2017.08.008 |
| DOI:10.12015/issn.1674-8034.2017.08.008. |
