Effects of thirty-minute mobile phone use on visuo-motor reaction time.
OBJECTIVE
To investigate whether exposure to pulsed high-frequency electromagnetic field (pulsed EMF) emitted by a mobile phone has short-term effects on the visuo-motor choice reaction time (RT) and movement time (MT).


METHODS
A double blind, counterbalanced crossover design was employed. In 16 normal subjects, we studied the performance of a visuo-motor precued choice reaction time task (PCRT) before and after exposure to EMF emitted by a mobile phone for 30 minutes or sham exposure.


RESULTS
The RTs and MTs under different conditions of precue information were not affected by exposure to pulsed EMF emitted by a mobile phone or by sham phone use.


CONCLUSIONS
Thirty minutes of mobile phone use has no significant short-term effect on the cortical visuo-motor processing as studied by the present PCRT task.


CONCLUSIONS
This is the first study to investigate visuo-motor behavior in relation to mobile phone exposure. No significant effect of mobile phone use was demonstrated on the performance of the visuo-motor reaction time task.
Terao
Yasuo
Y
Department of Neurology, Division of Neuroscience, Graduate School of Medicine the University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. yterao-tky@umin.ac.jp
Okano
Tomoko
T
Furubayashi
Toshiaki
T
Ugawa
Yoshikazu
Y
D000328:Adult; D040421:Cell Phone; D018592:Cross-Over Studies; D003463:Cues; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000528:radiation effects*; D011930:Reaction Time / Q000528:radiation effects*