Medial prefrontal cortex and anterior cingulate cortex in the generation of alpha activity induced by transcendental meditation: A magnetoencephalographic study

Shin Yamamoto, Yoshihiro Kitamura, Norihito Yamada, Yoshihiko Nakashima, Shigetoshi Kuroda

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Previous EEG studies have shown that transcendental meditation (TM) increases frontal and central alpha activity. The present study was aimed at identifying the source of this alpha activity using magnetoencephalography (MEG) and electroencephalography (EEG) simultaneously on eight TM practitioners before, during, and after TM. The magnetic field potentials corresponding to TM-induced alpha activities on EEG recordings were extracted, and we attempted to localize the dipole sources using the multiple signal classification (MUSIC) algorithm, equivalent current dipole source analysis, and the multiple spatio-temporal dipole model. Since the dipoles were mapped to both the medial prefrontal cortex (mPFC) and anterior cingulate cortex (ACC), it is suggested that the mPFC and ACC play an important role in brain activity induced by TM. Copyright

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalActa medica Okayama
Volume60
Issue number1
Publication statusPublished - Feb 2006

Keywords

  • Anterior cingulate cortex
  • Magnetoencephalography (MEG)
  • Medial prefrontal cortex
  • Source analysis
  • Transcendental meditation

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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