경락경혈학회지 Vol.27, No.2, pp.141 157, 2010∼ Korean Journal of Acupuncture
Cheol-Jin Park, Sang-Ryong Lee
Dept. of Meridian & Acupoints, College of Korean Medicine, Woosuk University
Abstract
Objectives : The aim of this study is to examine the effects of acupuncture at PC7(Daereung) on normal human EEG using power spectral analysis.
Methods : EEG power spectrum exhibits site-specific and state-related differences in specific frequency bands. In this study, power spectrum was used as a measure of complexity. 30 subjects (16 males and 14 females; averaged age = 23.4 years) were engaged with thirty channel EEG study.
Results : In α(alpha) band, the power values at Fp1, Fp2, F7, F8 channels(p<0.05) during PC7 treatment were significantly decreased. But, the power values at Fz channel(p<0.05) during non-acupoint treatment was significantly decreased. In β(beta) band, the power values at Fp1, Fp2 channels(p<0.05) during PC7 treatment were significantly decreased. But, the power values at Fz channel(p<0.05) during non-acupoint treatment was significantly decreased and at F8, TCP2 channels(p<0.05) during non-acupoint treatment were increased. In θ(theta) band, the power values at Fp1, Fp2, F7, F8 channels(p<0.05) during PC7 treatment were significantly decreased. But, the power values at Fz channel(p<0.05) during non-acupoint treatment was significantly decreased. In δ(delta) band, the power values at Fp1, Fp2, F7, Fz, F8 channels (p<0.05) during PC7 treatment were significantly decreased. But, the power values at Fz channel (p<0.05) during non-acupoint treatment was significantly decreased. α β/ values during PC7 treatment were decreased. β θ/ values during PC7 treatment were decreased.
Conclusion : These results suggest that acupuncture at PC7 induce the change on α(alpha), β (beta), θ(theta), δ(delta) wave values being decreased and and bothe α β/ and β θ/ values being decreased respectively. This is considered that acupuncture at PC7 affects the activity of cerebral cortex and endocrine system.
Key words : acupuncture, EEG, PC7(Daereung), complexity, power spectrum
Fig. 1.
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Table 1. The average values and standard deviations of α wave of the EEG from 30 channels before and after acupuncture treatment
μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ
Fig. 2. Topographical display of EEG activity within the α range due to PC7 acupuncture treatment
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Table 2. The average values and standard deviations of β wave of the EEG from 30 channels before and after acupuncture treatment
μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ
Fig. 3. Topographical display of EEG activity within βrange due to PC7 acupuncture treatment
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Table 3. The average values and standard deviations of θ wave of the EEG from 30 channels before and after acupuncture treatment
μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ
Fig. 4. Topographical display of EEG activity within the θrange due to PC7 acupuncture treatment
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Table 4. The average values and standard deviations of δ wave of the EEG from 30 channels before and after acupuncture treatment
μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ
Fig. 5. Topographical display of EEG activity within the δ range due to PC7 acupuncture treatment
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Table 5. The average values of / before and after PC7 acupuncture treatmentα β
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Table 6. The average values of / before and after PC7 acupuncture treatmentβ θ
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