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07/05/2007 - Evaluation of Scalp and Auricular Acupuncture on EEG, HRV, and PRV.

Institute: Department of Biomedical Engineering, Chung Yuan Christian University, Chungli, Taiwan, ROC.

Author(s): Hsu CC, Weng CS, Sun MF, Shyu LY, Hu WC, Chang YH.

Journal: Am J Chin Med. 2007;35(2):219-30.


In this study, the EEG, ECG and blood-pressure-pulse recorder were employed to evaluate heart rate variability, pulse rate variability, and EEG of 10 adults after scalp (experimental test I) at Sishencong scalp acupoint and auricular (experimental test II) acupuncture at Shenmen auricular acupoint for about 10 min.

Comparison of the results between the experimental tests and a control with no stimulation test showed that both the heart rate and pulse rate were decreased, and the blood pressure fell. The high and low frequency power of FFT analysis of heart rate was increased and decreased, respectively; indicating that the parasympathetic nerves were activated and the sympathetic nerves were inhibited. The analysis of the power spectrum of EEG showed that the number of low frequency waves was increased after acupuncture stimulation.

Therefore, acupuncture on either Sishencong or Shenmen might calm the mind, slow down the heart rate, and activate the parasympathetic nerves.

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