Brain sources of EEG gamma frequency during volitionally meditation-induced, altered states of consciousness, and experience of the self.

Lehmann, D; Faber, P L; Achermann, P; Jeanmonod, D; Gianotti, Lorena; Pizzagalli, D (2001). Brain sources of EEG gamma frequency during volitionally meditation-induced, altered states of consciousness, and experience of the self. Psychiatry research, 108(2), pp. 111-121. Elsevier 10.1016/S0925-4927(01)00116-0

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology > Social Psychology and Social Neuroscience

UniBE Contributor:

Gianotti, Lorena

Subjects:

100 Philosophy > 150 Psychology

ISSN:

0165-1781

Publisher:

Elsevier

Language:

English

Submitter:

Lorena Gianotti

Date Deposited:

22 Dec 2014 09:46

Last Modified:

22 Dec 2014 09:46

Publisher DOI:

10.1016/S0925-4927(01)00116-0

PubMed ID:

11738545

URI:

https://boris.unibe.ch/id/eprint/61189

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