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Rats were tested in an open field after previous exposure to a weak, 50-Hz electromagnetic field of the same order of magnitude as the earth's magnetic field. Animals exposed to the artificial field at the beginning of the light phase showed 40% more rearing activity than controls, together with a slight increase in ambulation and a tendency towards less defecation and a shortened rearing latency. A replication experiment yielded the same results. Animals exposed at the beginning of the dark phase manifested no significant changes in open field activity. The results show that weak electromagnetic stimuli can modify some behavioral responses, and that these responses are sensitive to circadian phase.
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
February 2004,
Environmental research,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
January 2009,
Toxicology and industrial health,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
March 1997,
Revue d'epidemiologie et de sante publique,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
March 1999,
Journal of sleep research,
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K Kräuchi, and
A Wirz-Justice, and
H Feer
May 2008,
Bioelectromagnetics,
K Rudolph, and
K Kräuchi, and
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H Feer
January 2006,
International journal of occupational medicine and environmental health,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
January 1998,
Bioelectromagnetics,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
December 2009,
Acta physiologica Hungarica,
K Rudolph, and
K Kräuchi, and
A Wirz-Justice, and
H Feer
February 2006,
Biomagnetic research and technology,
K Rudolph, and
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A Wirz-Justice, and
H Feer
March 1995,
Mutation research,
