Many studies on the effects of acupuncture on brain activity have been concerned with the stimulation of specific acu-points. However, research on brain activity with the stimulation of the body-meridian line is still quite novel. The hypothesis of the present study is that heart meridian stimulations with different directions of line-magnet poles would elicit different effects on EEG activity. Twenty-three healthy young adults between the age of 19 and 22 years old participated in the experiment. Two tiny NEO line-magnets were applied to stimulate the heart meridian. EEG activities were changed significantly between different treatments on the heart meridian using line-magnet with different directions of magnetic poles (p<0.05). The present study shows that the stimulation of the heart meridian with the line-magnets has an effect on brain activity associated with the direction of the line-magnet pole.
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