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Brain & Nervous System

Modification of acoustic startle by microwave pulses in the rat: a preliminary report.

No Effects Found

Seaman RL, Beblo DA · 1992

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Microwave pulses can alter nervous system responses in rats, but the effects don't increase predictably with intensity.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to intense microwave pulses just before loud sounds to see if the microwaves affected their startle reflex. They found that moderate-intensity microwave pulses delayed and reduced the rats' startle responses, but surprisingly, higher-intensity pulses had no effect. This suggests that microwave radiation can interfere with nervous system responses, but the relationship isn't straightforward.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.25 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.25 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 1.25-GHz

Study Details

Single, 1.25-GHz microwave pulses of 0.8- to 1.0-microseconds duration were presented to each of fou...

. However, at a higher energy dose per microwave pulse in the range of 59-107 mJ/kg (peak SAR, 63-111 kW/kg), the mean latency and amplitude of the startle response were not statistically different from the respective means of control responses.

Cite This Study
Seaman RL, Beblo DA (1992). Modification of acoustic startle by microwave pulses in the rat: a preliminary report. Bioelectromagnetics 13(4):323-328, 1992.
Show BibTeX
@article{rl_1992_modification_of_acoustic_startle_3387,
  author = {Seaman RL and Beblo DA},
  title = {Modification of acoustic startle by microwave pulses in the rat: a preliminary report.},
  year = {1992},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/1510741/},
}
PubMed: 1510741

Cited By (6 papers)

Quick Questions About This Study

Research shows microwave radiation can affect startle reflexes, but the relationship isn't straightforward. A 1992 study found moderate-intensity microwave pulses delayed and reduced startle responses in rats, while surprisingly, higher-intensity pulses showed no effect on nervous system reactions.
Studies suggest 1.25 GHz microwave radiation can interfere with nervous system responses. Research on rats found that moderate microwave pulses affected startle reflexes by delaying and reducing responses, indicating potential nervous system interference at certain exposure levels.
Research indicates microwave pulses can affect brain and nervous system function, though effects vary by intensity. A study found moderate microwave exposures altered startle responses in rats, but higher intensities showed no significant effects, suggesting complex dose-response relationships.
Microwave radiation pulses may affect nervous system function based on animal studies. Research found moderate-intensity pulses can delay and reduce startle responses, though higher intensities showed no effects. The health implications for humans require further investigation and research.
Pulsed microwave exposure can modify reflex responses depending on intensity levels. A rat study showed moderate microwave pulses delayed and reduced startle reflexes, while higher-intensity pulses produced no significant changes, indicating complex effects on nervous system function.