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首页> 外文期刊>Journal of Cognitive Neuroscience >Motivationally Significant Self-control: Enhanced Action Withholding Involves the Right Inferior Frontal Junction
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Motivationally Significant Self-control: Enhanced Action Withholding Involves the Right Inferior Frontal Junction

机译：具有自我激励意义的自我控制：增强的动作抑制功能会涉及右下额叶结

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摘要

In everyday life, people use self-control to withhold actions. This ability is particularly important when the consequences of action withholding have an impact on the individual's well-being. Despite its importance, it is unclear as to how the neural nodes implicated in action withholding contribute to this real-world type of self-control. By modifying an action withholding paradigm, the goo-go task, we examined how the brain exerts self-control during a scenario in which the implications of withholding an action are meaningful and motivationally significant. A successfully withheld response contributed to long-term monetary rewards, whereas failure to withhold a response incurred an immediate monetary punishment. Compared with neutral action withholding, participants significantly improved their performance when these contingencies were applied. Crucially, although the right IFG and pre-SMA were found to promote overall action withholding, the enhancement in behavioral performance relative to a neutral condition was only reflected by a physiological change in a region encompassing the right inferior frontal junction and precentral gyrus. We speculate that the ability to flexibly modulate attention to goal-relevant stimuli is crucial to enhanced, motivationally driven action withholding and that this ability is subserved by the right inferior frontal junction. These findings suggest that control-modulating factors, rather than action withholding processes per se, can be critical to improving motivationally significant action withholding outcomes.
机译：在日常生活中，人们使用自制力来抑制行为。当不采取行动的后果对个人的幸福感产生影响时，这种能力尤其重要。尽管它很重要，但是不清楚牵涉动作阻止的神经节点如何促进这种现实世界中的自我控制。通过修改扣留行动范式（执行/不执行任务），我们研究了在扣留行动的含义有意义且具有激励意义的情况下，大脑如何施加自我控制。成功保留的响应有助于获得长期的金钱奖励，而未能保留响应的行为将导致立即的金钱惩罚。与采取中立行动相比，参与者在应用这些意外事件时可以显着提高他们的表现。至关重要的是，尽管发现正确的IFG和前SMA可以促进总体动作抑制，但相对于中性状态，行为表现的增强仅反映在包括右下额叶交界和中央前回的区域内的生理变化。我们推测，灵活地调节对目标相关刺激的注意力的能力对于增强的，动机驱动的动作保留是至关重要的，而这种能力由右下额叶交界处得到保留。这些发现表明，控制调节因素而不是扣留行动本身本身对于改善具有动机意义的扣留行动至关重要。

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