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• Original Article •
The effect of intentionality on reactive aggression: a rs-fMRI study on individual differences
LIU Bo  CHEN Zhuo  ZHENG Li  LI Lin  NING Rui-peng  GUO Xiu-yan 

DOI:10.12015/issn.1674-8034.2016.08.009.


[Abstract] Objective: To study the neural basis of individual differences in the effect of other’s intentionality on individual’s reactive aggression, we used a variant of taylor aggression paradigm (TAP), with resting-state functional magnetic resonance imaging (rs-fMRI) technology.Materials and Methods: Our experiment recruited thirty healthy male volunteers. These participants played successive competitive reaction-time tasks with four opponents in turn and the loser who responded more slowly would be punished by the winner. The four opponents were comprised of intentional high-aggressive opponent, intentional low-aggressive opponent, unintentional high-aggressive opponent and unintentional low-aggressive opponent. The effect of other’s intentionality on individual’s reactive aggression (i.e. the effect of intentionality) was measured by the difference in punishment intensity which participant gave to the intentional high-aggressive opponent and unintentional high-aggressive opponent. The rs-fMRI data was processed using DPARSF toolbox. Then correlation analysis was conducted to examine the relationship between the effect of intentionality and ReHo values.Results: Significant positive correlations between the effect of intentionality and ReHo values were observed in the temporo-parietal junction. Significant negative correlations between the effect of intentionality and ReHo values were observed in the striatum.Conclusion: The data indicates that temporo-parietal junction and striatum are involved in the effect of other’s intentionality on individual’s reactive aggression.
[Keywords] Reactive aggression；Intentionality；Magnetic resonance imaging, functional；Taylor aggression paradigm；Regional homogeneity；Temporo parietal junction；Striatum

LIU Bo Department of Physics, Shanghai Key Laboratory of Magnetic Resonance and East China Normal University, Shanghai 200062, China

CHEN Zhuo Department of Physics, Shanghai Key Laboratory of Magnetic Resonance and East China Normal University, Shanghai 200062, China

ZHENG Li School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China

LI Lin School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China

NING Rui-peng* Department of Physics, Shanghai Key Laboratory of Magnetic Resonance and East China Normal University, Shanghai 200062, China

GUO Xiu-yan* School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China

*Correspondence to: Ning RP, E-mail:rpning@phy.ecnu.edu.cn Guo XY, E-mail:xyguo@psy.ecnu.edu.cn

Conflicts of interest   None.

ACKNOWLEDGMENTS  This research was supported by the National Natural Science Foundation of China No. 31271090, 71371180 the Key Program of the National Social Science Foundation of China No. 14AZD106 Shanghai Municipality Natural Science Fund No. 14ZR1411300
Received  2016-04-15
Accepted  2016-05-16
DOI: 10.12015/issn.1674-8034.2016.08.009
DOI:10.12015/issn.1674-8034.2016.08.009.

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