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International Journal of Biometeorology

, Volume 32, Issue 1, pp 17–20 | Cite as

Epilepsy and electromagnetic fields: effects of simulated atmospherics and 100-Hz magnetic fields on audiogenic seizure in rats

  • J. Juutilainen
  • E. Björk
  • K. Saali
Original Articles

Abstract

In order to study the possible association between epileptic seizures and natural electromagnetic fields, 32 female audiogenic seizure (AGS)-susceptible rats were exposed to simulated 10 kHz and 28 kHz atmospherics and to a sinusoidally oscillating magnetic field with a frequency of 100 Hz and field strength of 1 A/m. After the electromagnetic exposure, seizures were induced in the rats with a sound stimulus. The severity of the seizure was determined on an ordinal scale, the audiogenic response score (ARS). The time from the beginning of the sound stimulus to the onset of the seizure (seizure latency) and the duration of the convulsion was measured. No differences from the control experiments were found in the experiments with simulated atmospherics, but the 100 Hz magnetic field increased the seizure latency by about 13% (P<0.02). The results do not support the hypothesis that natural atmospheric electromagnetic signals could affect the onset of epileptic seizures, but they suggest that AGS-susceptible rats may be a useful model for studying the biological effects of electromagnetic fields.

Key words

Epilepsy Electromagnetic fields Rat Audiogenic seizure 

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Copyright information

© International Society of Biometeorology 1988

Authors and Affiliations

  • J. Juutilainen
    • 1
  • E. Björk
    • 1
  • K. Saali
    • 1
  1. 1.Department of Environmental HygieneUniversity of KuopioKuopioFinland

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