Cited by 150Functional Brain Connectivity StudiesMindfulness and Compassion InterventionsNeural dynamics and brain function

Reduced functional connectivity between cortical sources in five meditation traditions detected with lagged coherence using EEG tomography

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Lehmann, Dietrich, Faber, Pascal L., Tei, Shisei, Pascual-Marqui, Roberto D., Milz, Patricia, Kochi, Kieko·2012·NeuroImage

Abstract

Brain functional states are established by functional connectivities between brain regions. In experienced meditators (13 Tibetan Buddhists, 15 QiGong, 14 Sahaja Yoga, 14 Ananda Marga Yoga, 15 Zen), 19-channel EEG was recorded before, during and after that meditation exercise which their respective tradition regards as route to the most desirable meditative state. The head surface EEG data were recomputed (sLORETA) into 19 cortical regional source model time series. All 171 functional connectivities between regions were computed as 'lagged coherence' for the eight EEG frequency bands (delta through gamma). This analysis removes ambiguities of localization, volume conduction-induced inflation of coherence, and reference-dependence. All significant differences (corrected for multiple testing) between meditation compared to no-task rest before and after meditation showed lower coherence during meditation, in all five traditions and eight (inhibitory as well as excitatory) frequency bands. Conventional coherence between the original head surface EEG time series very predominantly also showed reduced coherence during meditation. The topography of the functional connectivities was examined via PCA-based computation of principal connectivities. When going into and out of meditation, significantly different connectivities revealed clearly different topographies in the delta frequency band and minor differences in the beta-2 band. The globally reduced functional interdependence betwee…

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Crossref · 10.1016/j.neuroimage.2012.01.042

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Authors
Lehmann, D., Faber, P. L., Tei, S., Pascual-Marqui, R. D., Milz, P., & Kochi, K.
Affiliations
  • University of Zurich (CH)
  • The University of Tokyo (JP)
Corresponding author
Lehmann, Dietrich
Venue
NeuroImage
Publisher
Elsevier BV
Published
2012-04
Volume
60
Issue
2
Pages
1574-1586
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2007256131
Cited by
150
References
80
Citations by year
2026: 7 · 2025: 4 · 2024: 12 · 2023: 6 · 2022: 10 · 2021: 16 · 2020: 12 · 2019: 9 · 2018: 8 · 2017: 13 · 2016: 6 · 2015: 14 · 2014: 19 · 2013: 11 · 2012: 2
FWCI
7.53
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
meditation, functional connectivity, EEG coherence, EEG source localization, sLORETA, Tibetan Buddhism, qigong, Sahaja Yoga, Zen meditation, frequency bands, delta band, self-processes, ego dissolution
MeSH terms
Adult, Cerebral Cortex, Electroencephalography, Humans, Middle Aged, Meditation

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