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Clinics

Print version ISSN 1807-5932On-line version ISSN 1980-5322

Abstract

NARAYANAN, Sareesh Naduvil et al. Spatial memory perfomance of wistar rats exposed to mobile phone. Clinics [online]. 2009, vol.64, n.3, pp.231-234. ISSN 1807-5932.  http://dx.doi.org/10.1590/S1807-59322009000300014.

INTRODUCTION: With the tremendous increase in number of mobile phone users world wide, the possible risks of this technology have become a serious concern. OBJECTIVE: We tested the effects of mobile phone exposure on spatial memory performance. MATERIALS AND METHODS: Male Wistar rats (10-12 weeks old) were exposed to 50 missed calls/day for 4 weeks from a GSM (900/1800MHz) mobile phone in vibratory mode (no ring tone). After the experimental period, the animals were tested for spatial memory performance using the Morris water maze test. RESULTS: Both phone exposed and control animals showed a significant decrease in escape time with training. Phone exposed animals had significantly (~3 times) higher mean latency to reach the target quadrant and spent significantly (~2 times) less time in the target quadrant than age- and sex-matched controls. CONCLUSION: Mobile phone exposure affected the acquisition of learned responses in Wistar rats. This in turn points to the poor spatial navigation and the object place configurations of the phone-exposed animals.

Keywords : Mobile phone; Rats; Memory; Learning; Water maze.

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