Brain sources of EEG gamma frequency during volitionally meditation-induced, altered states of consciousness, and experience of the self
Brain sources of EEG gamma frequency during volitionally meditation-induced, altered states of consciousness, and experience of the self
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DOI：
10.1016/s0925-4927(01)00116-0
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发表时间：
2001-11-30
影响因子：
2.3
通讯作者：
Pizzagalli, D
中科院分区：
文献类型：
--
作者：
Lehmann, D;Faber, PL;Pizzagalli, D
在四次不同的重复冥想过程中，对一位资深冥想者进行了多通道脑电图记录。在不同的冥想之间，脑内源重心位置以及脑电图“伽马”（35 - 44赫兹）频段活动的低分辨率电磁断层成像（LORETA）功能图像存在显著差异。因此，在与不同的主观冥想状态相关的自主引发的意识改变状态期间，不同的脑神经元群处于活跃状态。在以视觉化（右后部）和言语化（左中部）为目标的自我诱导冥想状态期间，主要涉及的大脑区域与已知的大脑功能性神经解剖结构相符。在正常自我表征和现实检验以及人格解体障碍和脑损伤后自我脱离所涉及的神经基质的背景下，讨论了在自我诱导的冥想中自我体验的消解和重构（右额颞部）所涉及的大脑区域。（C）2001爱思唯尔爱尔兰科学有限公司。保留所有权利。
Multichannel EEG of an advanced meditator was recorded during four different, repeated meditations. Locations of intracerebral source gravity centers as well as Low Resolution Electromagnetic Tomography (LORETA) functional images of the EEG 'gamma' (35-44 Hz) frequency band activity differed significantly between meditations. Thus, during volitionally self-initiated, altered states of consciousness that were associated with different subjective meditation states, different brain neuronal populations were active. The brain areas predominantly involved during the self-induced meditation states aiming at visualization (right posterior) and verbalization (left central) agreed with known brain functional neuroanatomy. The brain areas involved in the self-induced, meditational dissolution and reconstitution of the experience of the self (right fronto-temporal) are discussed in the context of neural substrates implicated in normal self-representation and reality testing, as well as in depersonalization disorders and detachment from self after brain lesions. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.