Duda Alexander T, Clarke Adam R, Barry Robert J, De Blasio Frances M
Brain & Behaviour Research Institute and School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.
Brain & Behaviour Research Institute and School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.
Int J Psychophysiol. 2024 Dec;206:112465. doi: 10.1016/j.ijpsycho.2024.112465. Epub 2024 Nov 16.
Mindfulness meditation is linked to a broad range of psychological and physical health benefits, potentially mediated by changes in neural oscillations. This study explored changes in neural oscillations associated with both immediate and regular mindfulness meditation practice. Electroencephalographic (EEG) data were collected from 40 healthy young adults (M = 20.8, 24 females) during eyes-closed resting and mindfulness meditation states in two separate recording sessions, six weeks apart. Participants were novice meditators, and following the first recording session, were randomly assigned to either a daily mindfulness meditation practice or classical music listening as an active control, which they completed until the second recording session. Traditional bands of delta (1.0-3.5 Hz), theta (4.0-7.5 Hz), alpha (8.0-13.0 Hz), beta (13.5-30.0 Hz), and gamma (30.5-45.0 Hz) were used to explore changes in global EEG spectral amplitude. A significant increase in theta between sessions was observed in both groups and states. Alpha decreased significantly during meditation compared with rest, and a three-way interaction indicated a smaller reduction during meditation between sessions in the mindfulness group. There was a similar interaction in beta, which remained stable between sessions during both rest and meditation in the mindfulness group while varying in the classical music listening group. No significant effects were observed in global delta or gamma amplitudes. These findings suggest that changes in neural oscillations associated with breath-focused mindfulness meditation may be related to processes underlying attention and awareness. Further research is necessary to consolidate these findings, particularly in relation to the associated health benefits.
正念冥想与广泛的心理和身体健康益处相关联，可能是由神经振荡的变化介导的。本研究探讨了与即时和定期正念冥想练习相关的神经振荡变化。在两个独立的记录环节中，间隔六周，从40名健康的年轻成年人（M = 20.8，24名女性）身上收集了脑电图（EEG）数据，记录环节分别处于闭眼休息和正念冥想状态。参与者均为冥想新手，在第一次记录环节之后，他们被随机分配到每日进行正念冥想练习或听古典音乐作为积极对照的组中，他们完成相应练习直至第二次记录环节。使用传统的δ波（1.0 - 3.5赫兹）、θ波（4.0 - 7.5赫兹）、α波（8.0 - 13.0赫兹）、β波（13.5 - 30.0赫兹）和γ波（30.5 - 45.0赫兹）频段来探索全脑EEG频谱幅度的变化。在两组和两种状态下，均观察到各环节间θ波有显著增加。与休息时相比，冥想期间α波显著降低，并且一个三因素交互作用表明，正念组在各环节间冥想期间α波的降低幅度较小。β波也有类似的交互作用，在正念组中，休息和冥想期间各环节间β波保持稳定，而在听古典音乐组中则有所变化。在全脑δ波或γ波幅度方面未观察到显著影响。这些发现表明，与专注呼吸的正念冥想相关的神经振荡变化可能与注意力和意识的潜在过程有关。有必要进行进一步研究以巩固这些发现，特别是关于相关的健康益处。
