PDF(Pubmed)
Abstract：
UNASSIGNED: Meditation is renowned for its positive effects on cognitive abilities and stress reduction. It has been reported that the amplitude of electroencephalographic (EEG) infra-slow activity (ISA, < 0.1 Hz) is reduced as the stress level decreases. Consequently, we aimed to determine if EEG ISA amplitude decreases as a result of meditation practice across various traditions.
UNASSIGNED: To this end, we analyzed an open dataset comprising EEG data acquired during meditation sessions from experienced practitioners in the Vipassana tradition-which integrates elements of focused attention and open monitoring, akin to mindfulness meditation-and in the Himalayan Yoga and Isha Shoonya traditions, which emphasize focused attention and open monitoring, respectively.
UNASSIGNED: A general trend was observed where EEG ISA amplitude tended to decrease in experienced meditators from these traditions compared to novices, particularly significant in the 0.03-0.08 Hz band for Vipassana meditators. Therefore, our analysis focused on this ISA frequency band. Specifically, a notable decrease in EEG ISA amplitude was observed in Vipassana meditators, predominantly in the left-frontal region. This reduction in EEG ISA amplitude was also accompanied by a decrease in phase-amplitude coupling (PAC) between the ISA phase and alpha band (8-12 Hz) amplitude, which implied decreased neural excitability fluctuations.
UNASSIGNED: Our findings suggest that not only does EEG ISA amplitude decrease in experienced meditators from traditions that incorporate both focused attention and open monitoring, but this decrease may also signify a diminished influence of neural excitability fluctuations attributed to ISA.
UNASSIGNED: To this end, we analyzed an open dataset comprising EEG data acquired during meditation sessions from experienced practitioners in the Vipassana tradition-which integrates elements of focused attention and open monitoring, akin to mindfulness meditation-and in the Himalayan Yoga and Isha Shoonya traditions, which emphasize focused attention and open monitoring, respectively.
UNASSIGNED: A general trend was observed where EEG ISA amplitude tended to decrease in experienced meditators from these traditions compared to novices, particularly significant in the 0.03-0.08 Hz band for Vipassana meditators. Therefore, our analysis focused on this ISA frequency band. Specifically, a notable decrease in EEG ISA amplitude was observed in Vipassana meditators, predominantly in the left-frontal region. This reduction in EEG ISA amplitude was also accompanied by a decrease in phase-amplitude coupling (PAC) between the ISA phase and alpha band (8-12 Hz) amplitude, which implied decreased neural excitability fluctuations.
UNASSIGNED: Our findings suggest that not only does EEG ISA amplitude decrease in experienced meditators from traditions that incorporate both focused attention and open monitoring, but this decrease may also signify a diminished influence of neural excitability fluctuations attributed to ISA.
摘要：
■冥想因其对认知能力和减轻压力的积极影响而闻名。据报道，脑电图（EEG）慢速活动的幅度（ISA，<0.1Hz）随着应力水平的降低而降低。因此,我们的目的是确定EEGISA振幅是否由于各种传统的冥想练习而降低。
■为此，我们分析了一个开放的数据集，该数据集包括在冥想过程中从内观传统中经验丰富的从业者那里获得的EEG数据，该数据集集成了集中注意力和开放监测的元素，类似于正念冥想-在喜马拉雅瑜伽和IshaShoonya传统中，强调集中关注和开放监测，分别。
■观察到一个普遍的趋势，与新手相比，这些传统的有经验的冥想者的EEGISA振幅趋于降低，对于内观冥想者来说，在0.03-0.08Hz波段尤其显著。因此,我们的分析集中在ISA频段。具体来说,在内观冥想者中观察到EEGISA振幅显着下降，主要在左额叶区域。EEGISA振幅的这种降低还伴随着ISA相位和α带（8-12Hz）振幅之间的相位振幅耦合（PAC）的降低，这意味着神经兴奋性波动减少。
■我们的发现表明，不仅有经验的冥想者的EEGISA振幅会从集中注意力和开放监测的传统中降低，但这种下降也可能意味着ISA引起的神经兴奋性波动的影响减弱。
■为此，我们分析了一个开放的数据集，该数据集包括在冥想过程中从内观传统中经验丰富的从业者那里获得的EEG数据，该数据集集成了集中注意力和开放监测的元素，类似于正念冥想-在喜马拉雅瑜伽和IshaShoonya传统中，强调集中关注和开放监测，分别。
■观察到一个普遍的趋势，与新手相比，这些传统的有经验的冥想者的EEGISA振幅趋于降低，对于内观冥想者来说，在0.03-0.08Hz波段尤其显著。因此,我们的分析集中在ISA频段。具体来说,在内观冥想者中观察到EEGISA振幅显着下降，主要在左额叶区域。EEGISA振幅的这种降低还伴随着ISA相位和α带（8-12Hz）振幅之间的相位振幅耦合（PAC）的降低，这意味着神经兴奋性波动减少。
■我们的发现表明，不仅有经验的冥想者的EEGISA振幅会从集中注意力和开放监测的传统中降低，但这种下降也可能意味着ISA引起的神经兴奋性波动的影响减弱。
