Deficits in Spatial Learning after Exposure of Mice to a 50 Hz Magnetic Field

Zenon J. Sienkiewicz, Richard Haylock, Richard D. Saunders

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

A series of four experiments was performed to determine the effect of exposure to a 50 Hz magnetic field on memory-related behaviour of adult, male C57BL/6J mice. Experimental subjects were exposed to a vertical, sinusoidal magnetic field at 0.75 mT (rms), for 45 min immediately before daily testing sessions on a spatial learning task in an eight-arm radial maze. Control subjects were only exposed to a background time-varying field of less than 50 nT and the ambient static field of about 40 μT. In each experiment, exposure significantly reduced the rate of acquisition of the task but did not affect overall accuracy. This finding is consistent with the results of another study that found that prior exposure to 60 Hz magnetic fields affected spatial learning in rats.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalBioelectromagnetics
Volume19
Issue number2
DOIs
Publication statusPublished - 1998

Keywords

  • ELF
  • Memory
  • Radial arm maze
  • Rodents

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