Liu Yong, Hou Yi, Quan Huan, Zhao Dongfang, Zhao Jia, Cao Bing, Pang Yazhi, Chen Hong, Lei Xu, Yuan Hong
Key Laboratory of Cognition and Personality (Ministry of Education), Southwest University, 400715, Beibei, Chongqing, China.
School of Psychology, Southwest University, Chongqing, China.
Brain Topogr. 2023 Mar;36(2):243-254. doi: 10.1007/s10548-023-00938-z. Epub 2023 Jan 25.
Mindfulness meditation helps to improve attentional capacity. However, the neural correlates that indicate the mechanism through which mindfulness improves attention are unclear. To address this gap, we aimed to assess the effects of mindfulness training on sustained attentional capacity. Event-related potentials (ERPs) associated with the modified sustained attention response task (mSART) were used in this study. A total of 45 college students were randomly assigned to either the mindfulness group (n = 21) or the control group (n = 24). Participants in the mindfulness group received a three-week mindfulness training. The self-report results showed that the mindfulness group reported higher mindfulness scores (observing and non-judgment of inner experiences) after the training. The mindfulness group also scored lower on the state anxiety than the control group. Behavioral results also showed that self-caught mind wandering in the mindfulness group significantly decreased after the training, and the mindfulness group showed a faster response after the training. The ERP results showed that N2 amplitudes in the post-test were significantly greater than those in the pre-test in the mindfulness group. We did not find any interactions between group and time for P3. The findings suggest that mindfulness training can effectively improve sustained attentional capacity, as indicated by reduced mind wandering and increased N2 responses.
正念冥想有助于提高注意力。然而，表明正念改善注意力机制的神经关联尚不清楚。为了填补这一空白，我们旨在评估正念训练对持续注意力的影响。本研究使用了与改良持续注意力反应任务（mSART）相关的事件相关电位（ERP）。45名大学生被随机分为正念组（n = 21）或对照组（n = 24）。正念组的参与者接受了为期三周的正念训练。自我报告结果显示，训练后正念组报告的正念得分（观察和对内心体验不评判）更高。正念组的状态焦虑得分也低于对照组。行为结果还显示，训练后正念组中自我觉察到的走神显著减少，且正念组在训练后反应更快。ERP结果显示，正念组测试后的N2波幅显著大于测试前。我们未发现P3在组间和时间上存在任何交互作用。研究结果表明，正念训练可以有效提高持续注意力，表现为走神减少和N2反应增加。
