This is a review of experimental findings on human response to artificial and natural extremely low frequencies electromagnetic fields, it is found that frequencies between 8.8 and 13.2 Hz, which fall between peaks of the Schumann resonance (between the first 7.8 Hz and the second 14.3 Hz armonic), are correlated with analysed human electrophysiological signals, while one study proves a correlation between transfer function of Schumann resonance and electro-acupunture meridian. And te authors propose that this is because Schumann resonance acts like a ‘band-pass’ filter allowing the maximum intensity of acupuncture meridian and EEG activity to penetrate between the two Schumann resonance outer regions.
The authors think that complex biological systems would, most likely, also use complex electromagnetics as communication systems and that external artificial electromagnetic application randomly interferes with those communication channels rather than insert a new information into the communication channels.
They search for resonance characteristics of acupuncture meridians (that have less electrical resistance than surrounding media) applying a sinusoidal signal, and they found resonance in 6.72, 8.9 and 11.5 Hz.
In this point may be interesting to note that Cyril W. Smith founds a 7.8 Hz resonance in the the pericardium meridian at Pe9 (a meridian that passes through the heart and in the point that terminate at the tip of the middle finger) when measured over people in meditative state but that in normal state is found to be 0.25 Hz .
They describe various experimental results that suggest that acupuncture meridians have a selective response to frequency, these results correlate well to the low frequency peaks measured in EEG and ECG signals and this response may also have some associations with the increase in brain's alpha waves (7.5 – 13 Hz) during acupuncture stimulation. Moreover the authors think that a correlation with the resonant frequencies occurring on the natural environment may be made, since these natural resonant frequencies, due to lightning-induced electromagnetic wave propagation between the earth and ionosphere (the Schumann resonances), have been shown to overlap with the characteristic spectral components of the EEG.
Other relationships between earth geomagnetic activity and the electromagnetic activity of the brain can be found in the papers listed in .
 Smith, C. W. (2004). Quanta and coherence effects in water and living systems. The Journal of Alternative & Complementary Medicine, 10(1), 69-78.
 EMMIND › Applied Fields - Experimental › Various Effects › Geomagnetism & Earth Fields
Last modified on 15-Mar-16