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Updated: Oct 8, 2025

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Neural basis underlying the association between expressive suppression and procrastination: The mediation role of the
Junyu Wang1, Rong Zhang1, Tingyong Feng2
1Faculty of Psychology, Southwest University, Chongqing, China.
Abstract:
Procrastination can lead to a variety of negative consequences, including poorer health conditions and more financial issues. Previous researches highlight that procrastination is a result of the failure of emotion-regulation. Although substantial studies have shown that emotion regulation plays an essential role in procrastination, little is known about the neural basis of the relationship between expressive suppression and procrastination. To address this question, we employed the voxel-based morphometry (VBM) method to investigate the neural basis underlying how expressive suppression links to procrastination across two independent samples (sample1, N = 98). Expressive suppression was significantly negatively associated with procrastination. Furthermore, VBM results indicated that expressive suppression was positively correlated with gray matter (GM) volumes of the right dorsolateral prefrontal cortex (dlPFC). More importantly, the GM volumes in dlPFC mediated the relationship between expressive suppression and procrastination, which was further replicated in an independent sample (sample 2, N = 110). These findings suggest that dlPFC, which plays a crucial role in inhibitory control, may be the key brain region mediating the relation between expressive suppression and procrastination. The current work provides a new perspective to understand how emotion regulation in terms of expressive suppression plays a role in procrastination.
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