Experimental study demonstrates reduced exploratory activity in weaning mice after prolonged magnetic exposure, indicating that strong static magnetic fields act as stressors.
We studied the effects of a prolongued exposure to a strong (1.0 Tesla) static and uniform magnetic field upon the open field behaviour and body weight of weaning mice. We observed a marked reduction in the exploratory activity of mice exposed to the field relative to that of control animals kept in similar surroundings, and handled in the same way as the exposed mice. One week of continuous exposure to a 1.0 T field significantly reduces peripheral square entries (p<0.01) as well as rearings (p<0.05), but has no effect on body weight. Our findings agree with the suggestion that a strong magnetic field may act as stressing agent.
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Pich et al. (1991) studied this question.
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