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Deficits in spatial learning after exposure of mice to a 50 Hz magnetic field
Author(s) -
Sienkiewicz Ze J.,
Haylock Richard G. E.,
Saunders Richard D.
Publication year - 1998
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/(sici)1521-186x(1998)19:2<79::aid-bem4>3.0.co;2-0
Subject(s) - bioelectromagnetics , spatial learning , field (mathematics) , magnetic field , audiology , psychology , nuclear magnetic resonance , physics , medicine , neuroscience , mathematics , quantum mechanics , hippocampus , pure mathematics
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. Bioelectromagnetics 19:79–84, 1998. © 1998 Wiley‐Liss, Inc.