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The Psychologic Consequences of Exposure to High Density Pulsed Electromagnetic Energy

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F. G. Hirsch, D. R. McGiboney, T. D. Harnish · 1968

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This 1968 research explored whether pulsed electromagnetic energy could affect rat psychology and maze behavior, pioneering EMF neurological studies.

Plain English Summary

Summary written for general audiences

This 1968 study by F.G. Hirsch examined how high-density pulsed electromagnetic energy affected psychological behavior in laboratory rats, specifically focusing on maze performance. The research represents early scientific investigation into whether electromagnetic fields could influence brain function and behavior patterns. This work helped establish the foundation for understanding potential neurological effects of EMF exposure decades before widespread wireless technology adoption.

Why This Matters

This research from 1968 represents pioneering work in understanding how electromagnetic fields might affect brain function and behavior. What makes this study particularly significant is its timing - it was conducted decades before cell phones, WiFi, and other wireless technologies became ubiquitous, yet researchers were already investigating psychological effects of pulsed electromagnetic energy. The focus on maze behavior in rats suggests scientists were exploring whether EMF exposure could impair cognitive function, memory, or decision-making processes.

The reality is that pulsed electromagnetic signals are now everywhere in our environment, from cell phone towers to WiFi routers to smart devices. While we don't have the specific findings from this early study, the fact that researchers in 1968 found it worthwhile to investigate psychological consequences of EMF exposure should give us pause about our current levels of exposure. Today's wireless signals are far more complex and prevalent than anything these early researchers could have imagined.

Figures from the Original Paper

Diagram extracted from the original research document.

diagramPage 3 - Fig. 2: The maze showing cover, starting gate in the raised position, and solenoid.

Exposure Information

Specific exposure levels were not quantified in this study. Duration: 3 nanoseconds per pulse with 10 minute intervals between exposures

Study Details

To investigate the psychological consequences of exposure to high density pulsed electromagnetic energy on the ability of rats to run a maze.

Female white albino rats were trained to run a maze using hunger as motivation. The maze was constru...

Animals showed a startle reaction to the electromagnetic pulses. Some animals displayed hesitation a...

The experiment demonstrates that there is a brief but reversible effect on the function of the central nervous system when it is subjected to a pulsed electromagnetic field of high density. The ability to run a maze was temporarily disrupted, with the mechanism possibly involving interference with decision-making strategies. The effect was reversible within 30 minutes, but incomplete recovery occurred between exposures.

Cite This Study
F. G. Hirsch, D. R. McGiboney, T. D. Harnish (1968). The Psychologic Consequences of Exposure to High Density Pulsed Electromagnetic Energy.
Show BibTeX
@article{the_psychologic_consequences_of_exposure_to_high_density_pulsed_electromagnetic__g3668,
  author = {F. G. Hirsch and D. R. McGiboney and T. D. Harnish},
  title = {The Psychologic Consequences of Exposure to High Density Pulsed Electromagnetic Energy},
  year = {1968},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Researchers examined how high-density pulsed electromagnetic energy affected maze behavior in laboratory rats, investigating whether EMF exposure could influence cognitive function, memory, or decision-making processes in animal models.
This early research occurred decades before widespread wireless technology, suggesting scientists already suspected electromagnetic fields might affect brain function and behavior, leading them to investigate potential neurological consequences.
Modern wireless devices emit complex pulsed signals similar to what early researchers studied, but at much higher frequencies and constant exposure levels that exceed anything these pioneering scientists investigated.
This appears to be among the earliest scientific investigations into electromagnetic field effects on behavior and cognition, establishing a research foundation decades before wireless technology became widespread.
The fact that researchers investigated psychological effects of pulsed electromagnetic energy in 1968 demonstrates early scientific awareness of potential neurological impacts from EMF exposure.