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KMID : 1129720030200030049
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Korean Journal of Acupuncture
2003 Volume.20 No. 3 p.49 ~ p.60
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The Effect of Electroacupuncture at the PC6 (Naegwan) on the correlation dimension of EEG
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Hong Seung-Won
Hwang Bae-Yeon
Lee Sang-Ryoung
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Abstract
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The aim of this study was to examine the effects of electroacupuncture(EA) at the PC6 (Naegwan) on normal humans using KarhunenLoeve decomposition method. Electroencephalogram(EEG) is a multi-scaled signal consisting of several components of time series with different dominant frequency ranges and different origins. EEG KarhunenLoeve decomposition method exibit site-specific and state-related differences in specific frequency bands. In this study, KarhunenLoeve decomposition method was used as a measure(D2) of complexity. 30 channel EEG study was carried out in 10 subjects (10 males; age=21.4±0.5 years). Results : We found that the average values and standard deviations of D2 at FP1, FP2, FTC1, FTC2, TT1, TT2, T4, TCP1, P3, P4, T6, OZ channel (P<0.05) were higher than during the acupuncture treatment, and the average values and standard deviations of D2 at F3, F8 channels(P<0.05) were lowered than during the acupuncture treatment. However, the comparison with that before and after the treatment shows no significant differences in all channels.
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KEYWORD
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Eletroacupuncture, EEG, PC6 (Naegwan), Complexity, KarhunenLoeve decomposition method, correlation dimension
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