Brain Activity in Advantageous and Disadvantageous Situations: Implications for Reward-Punishment Sensitivity in Different SituationsReportar como inadecuado




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Objective

This study modeled win and lose trials in a simple gambling task to examine the effect of entire win–lose situations WIN, LOSS, or TIE on single win-lose trials and related neural underpinnings.

Methods

The behavior responses and brain activities of 17 participants were recorded by an MRI scanner while they performed a gambling task. Different conditions were compared to determine the effect of the task on the behavior and brain activity of the participants. Correlations between brain activity and behavior were calculated to support the imaging results.

Results

In win trials, LOSS caused less intense posterior cingulate activity than TIE. In lose trials, LOSS caused more intense activity in the right superior temporal gyrus, bilateral superior frontal gyrus, bilateral anterior cingulate, bilateral insula cortex, and left orbitofrontal cortex than WIN and TIE.

Conclusions

The experiences of the participants in win trials showed great similarity among different win–lose situations. However, the brain activity and behavior responses of the participants in lose trials indicated that they experienced stronger negative emotion in LOSS. The participants also showed an increased desire to win in LOSS than in WIN or TIE conditions.



Autor: Guangheng Dong , Xiao Lin, Yanbo Hu, Qilin Lu

Fuente: http://plos.srce.hr/



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