Acute mobile phone operation affects neural function in humans

被引:158
作者
Croft, RJ
Chandler, JS
Burgess, AP
Barry, RJ
Williams, JD
Clarke, AR
机构
[1] Univ Wollongong, Brain & Behav Res Inst, Wollongong, NSW 2522, Australia
[2] Swinburne Univ Technol, Ctr Neuropsychopharmacol, Hawthorn, Vic 3122, Australia
[3] Univ London Imperial Coll Sci Technol & Med, Sch Med, Dept Cognit Neurosci & Behav, London W6 8RF, England
[4] Coventry Univ, Dept Psychol, Coventry CV1 5FB, W Midlands, England
关键词
mobile phone; electromagnetic field; resting electroencephalogram; event-related phase-locked power;
D O I
10.1016/S1388-2457(02)00215-8
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objectives: Mobile phones (MP) are used extensively and yet little is known about the effects they may have on human physiology.. There have been conflicting reports regarding the relation between MP use and the electroencephalogram (EEG). The present study suggests that this conflict may be due to methodological differences such as exposure durations, and tests whether exposure to an active NIP affects EEG as a function of time. Methods: Twenty-four subjects participated in a single-blind fully counterbalanced cross-over design, where both resting EEG and phase-locked neural responses to auditory stimuli were measured while a MP was either operating or turned off. Results: MP exposure altered resting EEG, decreasing 1-4 Hz activity (right hemisphere sites), and increasing 8-12 Hz activity as a function of exposure duration (midline posterior sites). MP exposure also altered early phase-locked neural responses, attenuating the normal response decrement over time in the 4-8 Hz band, decreasing the response in the 12 30 Hz band globally and as a function of time, and increasing midline frontal and lateral posterior responses in the 30-45 Hz band. Conclusions: Active MPs affect neural function in humans and do so as a function of exposure duration. The temporal nature of this effect may contribute to the lack of consistent results reported in the literature. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:1623 / 1632
页数:10
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