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Not everyone's heart contracts to reward: Insensitivity to varying levels of reward in dysphoria

机译:不是每个人的心都要承担奖励:对烦躁不安的不同程度的奖励不敏感

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摘要

Reward insensitivity in depression and dysphoria has been demonstrated by self-report, behavioral, and neuroscience data. These findings show less anticipated and experienced pleasure to rewarding stimuli, no behavioral adaptation in anticipation of rewards, and altered functioning in reward-related brain areas. The present study expands previous research by using cardiovascular reactivity to three levels of reward as an indicator of effort mobilization. Undergraduates with low versus high depression scores worked on a cognitive task in anticipation of no, versus a small, versus a significant amount of money for successful task performance. Results of pre-ejection period and heart rate reactivity confirmed the expected linear increase as a function of reward value in nondysphoric participants and the expected blunted response across all reward levels in dysphoric participants. The present findings thus show that dysphoric individuals have a motivational deficit in terms of reduced effort-related cardiac reactivity when anticipating a monetary reward.
机译:通过自我报告,行为和神经科学数据证明了抑郁和困难中的奖励不敏感性。这些调查结果显示较少的预期和经验丰富的乐趣,以奖励刺激,没有行为适应预期奖励,并在奖励相关的大脑地区的运作中改变。目前的研究通过使用心血管反应性与三级奖励作为努力调动的指标,扩大了先前的研究。与高萧条的大学生与高抑郁症分数相比,在预期没有,与一个小,而不是成功的任务表现的大量资金。预喷射时段和心率反应性的结果证实了作为非义人类参与者中奖励价值的函数的预期线性增加,并且在疑惑参与者中的所有奖励水平上的预期钝化反应。因此,目前的研究结果表明,在预期货币奖励时,困扰者在减少的努力相关的心脏反应性方面具有激励缺陷。

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