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PHYSIOLOGICAL EFFECTS OF ELECTROSLEEP

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DONALD H. REIGEL, DONALD DALLMANN, N. THOMAS CHRISTMAN, EDWARD ZUPKRKU, ERNEST O. HENSCHEL, SANFORD J. LARSON, ANTHONY SANCES, JR. · 1969

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Low-frequency electrical currents reduced monkey stomach acid production by 60%, proving EMF can significantly alter basic physiological functions.

Plain English Summary

Summary written for general audiences

Researchers applied low-frequency electrical currents (called electrosleep) to monkey brains and monitored various physiological responses. While heart rate and breathing remained unchanged, the treatment dramatically reduced stomach acid production by 60% and decreased muscle activity. This 1969 study explored how extremely low frequency electromagnetic fields affect basic bodily functions.

Why This Matters

This early study provides fascinating insight into how extremely low frequency electromagnetic fields can trigger measurable physiological changes, even when applied at relatively low intensities (50-1500 microamperes). The 60% reduction in gastric acid secretion is particularly striking and suggests that EMF exposure can significantly alter digestive function through nervous system pathways. What makes this research especially relevant today is that these frequencies (2.5 to 100 Hz) overlap with power line frequencies and some of the modulation patterns found in modern wireless technologies. While the study used direct electrical application rather than ambient field exposure, it demonstrates that low-frequency EMF can produce real biological effects at the cellular and organ system level. The fact that researchers could measure these changes in 1969 using basic equipment underscores how EMF bioeffects are not subtle phenomena requiring highly sensitive modern instruments to detect.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
DONALD H. REIGEL, DONALD DALLMANN, N. THOMAS CHRISTMAN, EDWARD ZUPKRKU, ERNEST O. HENSCHEL, SANFORD J. LARSON, ANTHONY SANCES, JR. (1969). PHYSIOLOGICAL EFFECTS OF ELECTROSLEEP.
Show BibTeX
@article{physiological_effects_of_electrosleep_g5760,
  author = {DONALD H. REIGEL and DONALD DALLMANN and N. THOMAS CHRISTMAN and EDWARD ZUPKRKU and ERNEST O. HENSCHEL and SANFORD J. LARSON and ANTHONY SANCES and JR.},
  title = {PHYSIOLOGICAL EFFECTS OF ELECTROSLEEP},
  year = {1969},
  
  
}

Quick Questions About This Study

Yes, electrosleep currents caused a dramatic 60% decrease in gastric acid secretion in monkeys. This significant reduction in stomach acid production demonstrates that low-frequency electromagnetic fields can substantially alter digestive system function through nervous system pathways.
Researchers tested frequencies from 2.5 to 100 Hz using current levels between 50 and 1500 microamperes. This frequency range overlaps with power line frequencies (50-60 Hz) and some modulation patterns found in modern wireless communication technologies.
No, the study found no statistically significant changes in heart rate or respiratory rate during electrosleep treatment. However, muscle activity (measured by electromyogram) markedly decreased, and brain wave patterns showed increased slow wave activity indicating altered consciousness.
Scientists implanted triple lumen gastric cannulas directly into the monkeys' stomachs, allowing continuous measurement of stomach pH levels and simultaneous collection of gastric contents before, during, and after electrosleep current application for precise acid secretion monitoring.
Researchers implanted electrodes in multiple brain areas including the lateral geniculate nucleus, calcarine fissure, occipital pole, ventral posterior lateral nucleus, and sensory cortex. They recorded visual responses, brain waves, and eye activity while monitoring the monkeys' physiological responses.