Zurich Center for Neuroeconomics, Department of Economics, University of Zurich, Bluemlisalpstrasse 10, 8006, Zurich, Switzerland.
Neuroscience Center Zurich, University of Zurich, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland.
Sci Rep. 2021 Jul 12;11(1):14342. doi: 10.1038/s41598-021-93121-y.
Multiple theories have proposed that increasing central arousal through the brain's locus coeruleus-norepinephrine system may facilitate cognitive control and memory. However, the role of the arousal system in emotion regulation is less well understood. Pupil diameter is a proxy to infer upon the central arousal state. We employed an emotion regulation paradigm with a combination of design features that allowed us to dissociate regulation from emotional arousal in the pupil diameter time course of 34 healthy adults. Pupil diameter increase during regulation predicted individual differences in emotion regulation success beyond task difficulty. Moreover, the extent of this individual regulatory arousal boost predicted performance in another self-control task, dietary health challenges. Participants who harnessed more regulation-associated arousal during emotion regulation were also more successful in choosing healthier foods. These results suggest that a common arousal-based facilitation mechanism may support an individual's self-control across domains.
多种理论提出，通过大脑蓝斑-去甲肾上腺素系统增加中枢觉醒可能有助于认知控制和记忆。然而，唤醒系统在情绪调节中的作用还不太清楚。瞳孔直径是推断中枢觉醒状态的一种替代方法。我们采用了一种情绪调节范式，结合了一些设计特征，使我们能够在 34 名健康成年人的瞳孔直径时程中区分调节和情绪唤醒。调节过程中的瞳孔直径增加可以预测个体在情绪调节成功方面的差异，而不仅仅是任务难度的差异。此外，这种个体调节唤醒的程度预测了另一个自我控制任务（饮食健康挑战）中的表现。在情绪调节过程中利用更多调节相关唤醒的参与者在选择更健康的食物方面也更成功。这些结果表明，一种常见的基于唤醒的促进机制可能支持个体在不同领域的自我控制。
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