Summary of performance data in the SST.

Mindfulness has been linked to enhanced inhibitory control, yet the dynamics of this relationship, especially in reward situations, are not well understood. Our cross-sectional study aimed to explore the relationship between trait mindfulness and a performance measure of inhibitory control as a function of reward context operationalized by stimuli characteristics, and temporal inhibitory demands. Thirty-six individuals aged 19 to 41 filled out the Mindful Attention Awareness Scale (MAAS) and performed a stop signal task (SST), that included both neutral (stone images) and reward-related (money images) stimuli. The SST encompassed four conditions: neutral go/neutral stop, neutral go/reward stop, reward go/neutral stop, and reward go/reward stop, requiring participants to suppress reactions either during or after encountering reward-related stimuli. The relevant index of inhibitory control is the stop signal reaction time (SSRT), a performance measure of inhibitory control. Our findings showed no notable variation in the relationship between the MAAS score and SSRT across the different conditions. However, there was an overall significant effect of MAAS score on SSRT, irrespective of condition. Results may reflect the benefit of mindfulness on inhibitory control after generalized reward exposure.正念（Mindfulness）与增强的抑制控制存在显著关联，但二者关联的动态机制，尤其是在奖励情境中，目前尚未得到充分阐释。本横断面研究旨在探究特质正念（trait mindfulness）与抑制控制行为测量指标之间的关联，该关联以奖励情境为调节变量，而奖励情境通过刺激特征及时序性抑制要求进行操作化界定。本研究招募36名年龄介于19至41岁的被试，让其填写完成正念注意觉知量表（Mindful Attention Awareness Scale，MAAS），并完成一项包含中性刺激（石头图像）与奖励相关刺激（金钱图像）的停止信号任务（stop signal task，SST）。该停止信号任务包含四种实验条件：中性启动-中性停止、中性启动-奖励停止、奖励启动-中性停止以及奖励启动-奖励停止，要求被试在遭遇奖励相关刺激的过程中或之后抑制自身反应。抑制控制的相关行为指标为停止信号反应时（stop signal reaction time，SSRT），该指标本身即为抑制控制的行为测量指标。研究结果显示，在不同实验条件下，MAAS得分与SSRT之间的关联并未出现显著差异。但整体而言，无论实验条件如何，MAAS得分对SSRT均存在显著影响。本研究结果或可反映，在普遍暴露于奖励刺激后，正念对抑制控制的增益作用。