Medical Faculty, Kunming University of Science and Technology, Kunming, China.
Brain Science and Visual Cognition Research Center, Medical School of Kunming University of Science and Technology, Kunming, China.
Brain Topogr. 2024 Jan;37(1):75-87. doi: 10.1007/s10548-023-01026-y. Epub 2023 Dec 25.
The effects of short-term mindfulness are associated with the different patterns (autonomic, audio guided, or experienced and certified mindfulness instructor guided mindfulness). However, robust evidence for reported the impacts of different patterns of mindfulness on mental health and EEG biomarkers of undergraduates is currently lacking. Therefore, we aimed to test the hypotheses that mindfulness training for undergraduates would improve mental health, and increase alpha power over frontal region and theta power over midline region at the single electrode level. We also describe the distinction among frequency bands patterns in different sites of frontal and midline regions. 70 participants were enrolled and assigned to either 5-day mindfulness or a waiting list group. Subjective questionnaires measured mental health and other psychological indicators, and brain activity was recorded during various EEG tasks before and after the intervention. The 5-day mindfulness training improved trait mindfulness, especially observing (p = 0.001, d = 0.96) and nonreactivity (p = 0.03, d = 0.56), sleep quality (p = 0.001, d = 0.91), and social support (p = 0.001, d = 0.95) while not in affect. Meanwhile, the expected increase in the alpha power of frontal sites (p < 0.017, d > 0.84) at the single electrode level was confirmed by the current data rather than the theta. Interestingly, the alteration of low-beta power over the single electrode of the midline (p < 0.05, d > 0.71) was difference between groups. Short-term mindfulness improves practitioners' mental health, and the potentially electrophysiological biomarkers of mindfulness on neuron oscillations were alpha activity over frontal sites and low-beta activity over midline sites.
短期正念的影响与不同模式（自主、音频引导或经验丰富且认证的正念指导者引导的正念）有关。然而，目前缺乏关于不同模式的正念对大学生心理健康和 EEG 生物标志物的影响的有力证据。因此，我们旨在检验以下假设：正念训练可以改善大学生的心理健康，并增加额叶区域的α波功率和中线区域的θ波功率。我们还描述了额叶和中线区域不同部位的频带模式之间的区别。共有 70 名参与者被纳入并分为 5 天正念组或候补组。主观问卷测量心理健康和其他心理指标，在干预前后的各种 EEG 任务中记录脑活动。5 天的正念训练提高了特质正念，特别是观察（p=0.001，d=0.96）和非反应性（p=0.03，d=0.56）、睡眠质量（p=0.001，d=0.91）和社会支持（p=0.001，d=0.95），而不影响情绪。同时，当前数据证实了预期的额叶部位（p<0.017，d>0.84）α波功率增加，而不是θ波。有趣的是，中线单个电极上的低β功率变化（p<0.05，d>0.71）在组间存在差异。短期正念可以改善练习者的心理健康，而正念对神经元振荡的潜在电生理生物标志物是额叶部位的α活动和中线部位的低β活动。
