焦虑调节金钱奖励过程的神经动力学机制:来自ERPs的证据

Neurodynamic Mechanisms by Which Anxiety Regulates Monetary Reward Processes: Evidence from ERPs

焦虑感是一种不愉快的情绪体验,经常处于焦虑状态,有损人们的健康。以往的研究表明,焦虑感强的个体存在奖赏系统的损伤。但是焦虑感是如何影响奖赏系统的神经动力学机制的,尚不可知。在本研究中,我们采用具有高时间分辨率的脑电技术,通过金钱奖励延迟任务来探究焦虑对奖赏过程的影响。我们的结果表明,焦虑会损伤奖赏的反馈阶段,但对奖赏的预期阶段则没有影响。我们的研究深入探讨了焦虑感对奖赏过程的影响的神经动力学机制,为焦虑的预防和改善提供了奖赏方面的证据。Feelings of anxiety are an unpleasant emotional experience, and being in a constant state of anxiety is detrimental to people’s health. Previous studies have shown that individuals with high levels of anxiety have impairments in the reward system. However, how anxiety affects the neurodynamic mechanisms of the reward system is unknown. In the present study, we used ERP technology with high temporal resolution to explore the effects of anxiety on reward processes through a monetary reward delay task. Our results show that anxiety impairs the feedback phase of reward, but has no effect on the anticipatory phase of reward. Our study provides insight into the neurodynamic mechanisms underlying the effects of anxiety on reward processes and provides evidence for the prevention and amelioration of anxiety with respect to reward.