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EEG source imaging during two Qigong meditations

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Abstract

Experienced Qigong meditators who regularly perform the exercises “Thinking of Nothing” and “Qigong” were studied with multichannel EEG source imaging during their meditations. The intracerebral localization of brain electric activity during the two meditation conditions was compared using sLORETA functional EEG tomography. Differences between conditions were assessed using t statistics (corrected for multiple testing) on the normalized and log-transformed current density values of the sLORETA images. In the EEG alpha-2 frequency, 125 voxels differed significantly; all were more active during “Qigong” than “Thinking of Nothing,” forming a single cluster in parietal Brodmann areas 5, 7, 31, and 40, all in the right hemisphere. In the EEG beta-1 frequency, 37 voxels differed significantly; all were more active during “Thinking of Nothing” than “Qigong,” forming a single cluster in prefrontal Brodmann areas 6, 8, and 9, all in the left hemisphere. Compared to combined initial–final no-task resting, “Qigong” showed activation in posterior areas whereas “Thinking of Nothing” showed activation in anterior areas. The stronger activity of posterior (right) parietal areas during “Qigong” and anterior (left) prefrontal areas during “Thinking of Nothing” may reflect a predominance of self-reference, attention and input-centered processing in the “Qigong” meditation, and of control-centered processing in the “Thinking of Nothing” meditation.

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Acknowledgments

This work was supported in part by grant Nr. 44/06 from the Bial Foundation, S. Mamede do Coronado, Portugal. We thank Qigong Master Feng-San Lee for the possibility to contact the meditators of his group and Mitsumasa Kawakami for helpful comments to experimental settings.

Author information

Author notes

  1. Hiroaki Kumano

    Present address: Department of Health Science and Social Welfare, Faculty of Human Sciences, Waseda University, Tokorozawa-City, Saitama, 359-1192, Japan

  2. Shisei Tei

    Present address: Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawara-cho, Sakyo-ku, Kyoto, 606-8507, Japan

Authors and Affiliations

  1. The KEY Institute for Brain-Mind Research, Clinic for Affective Disorders and General Psychiatry Zurich East, University Hospital of Psychiatry, 8032, Zurich, Switzerland

    Pascal L. Faber, Dietrich Lehmann, Shisei Tei, Roberto D. Pascual-Marqui & Kieko Kochi

  2. Department of Stress Science and Psychosomatic Medicine, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Shisei Tei & Hiroaki Kumano

  3. Department of Health Science and Social Welfare, Faculty of Human Sciences, Waseda University, Tokorozawa-City, Saitama, 359-1192, Japan

    Takuya Tsujiuchi

Authors
  1. Pascal L. Faber
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  2. Dietrich Lehmann
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  3. Shisei Tei
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  4. Takuya Tsujiuchi
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  5. Hiroaki Kumano
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  6. Roberto D. Pascual-Marqui
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  7. Kieko Kochi
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Corresponding author

Correspondence to Pascal L. Faber.

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Faber, P.L., Lehmann, D., Tei, S. et al. EEG source imaging during two Qigong meditations. Cogn Process 13, 255–265 (2012). https://doi.org/10.1007/s10339-012-0441-4

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  • DOI: https://doi.org/10.1007/s10339-012-0441-4

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