EEG Spectral Analysis on Qigong Meditation

Author: Xiangi XZ 1//Miyzaki H 2//Itoh M 3//Tashiro M 3//Omori H 1
Department of Medicine and Science in Sports and Exercise, Tohoku Univ. Graduate School of Medicine, Sendai, Japan [1]//Laboratory of Neuroinformation Science, Tohoku-Gakuin Univ.. Sendai, Japan [2]//Division of Nuclear Medicine, Cyclotron RI Center, Tohoku Univ., Sendai, Japan [3]
Conference/Journal: J Intl Soc Life Info Science
Date published: 1997
Other: Volume ID: 15 , Issue ID: 1 , Pages: 123-125 , Special Notes: Also in Japanese. Third Symposium of Life Information Science. , Word Count: 118

EEG spectral analysis was applied on nine right-handed Qigong masters
during Qigong practice. EEGs were recorded according to the international 10-20 system using Brain Atlas II (Biologic, USA). EEG spectra were averaged during 30 seconds to produce relative frequencies and their peaks which were divided into delta(0.5-4.0 Hz),
theta(4.5-8.0 Hz), alpha(8.5-13.0 Hz), beta 1(13.5-20.0 Hz),
beta 2(20.5-30.0 Hz) bands. Large individual variations were found across subjects in theta, alpha, beta 2 fractions, although the difference between on and off meditation was not significant. Variations were most noted in the frontal electrodes without right-left asymmetry. This implied heterogeneity in the way of Qigong practice between subjects and the need for caution in discussing Qigong meditation as a whole.