Abstract
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 δ(0.5-4.0 Hz),Θ(4.5-8.0 Hz),α(8.5-13.0 Hz),β_1(13.5-20.0 Hz),β_2(20.5-30.0 Hz) bands. Large individual variations were found across subjects in Θ, α, β_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.
