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Mobile phone effects on children's event-related oscillatory EEG during an auditory memory task 

Authors: Christina M. Krause ab;  Christian Haarala Bjoumlrnberg bc;  Mirka Pesonen a;  Annika Hulten bd;  Tiia Liesivuori bc;  Mika Koivisto bc;  Antti Revonsuo be;  Matti Laine bd; Heikki Haumlmaumllaumlinen bc
Affiliations:   a Cognitive Science Unit, Department of Psychology, University of Helsinki, Helsinki
b Centre for Cognitive Neuroscience,
c Department of Psychology, University of Turku, Turku
d Department of Psychology, Aringbo Akademi University, Turku
e Department of Philosophy, University of Turku, Turku, Finland
DOI: 10.1080/09553000600840922
Publication Frequency: 12 issues per year
Published in: journal International Journal of Radiation Biology, Volume 82, Issue 6 June 2006 , pages 443 - 450
Formats available: HTML (English) : PDF (English)
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Abstract

Purpose: To assess the effects of electromagnetic fields (EMF) emitted by mobile phones (MP) on the 1 - 20 Hz event-related brain oscillatory EEG (electroencephalogram) responses in children performing an auditory memory task (encoding and recognition).

Materials and methods: EEG data were gathered while 15 subjects (age 10 - 14 years) performed an auditory memory task both with and without exposure to a digital 902 MHz MP in counterbalanced order.

Results: During memory encoding, the active MP modulated the event-related desynchronization/synchronization (ERD/ERS) responses in the ∼4 - 8 Hz EEG frequencies. During recognition, the active MP transformed these brain oscillatory responses in the ∼4 - 8 Hz and ∼15 Hz frequencies.

Conclusions: The current findings suggest that EMF emitted by mobile phones has effects on brain oscillatory responses during cognitive processing in children.
Keywords: EEG; EMF; mobile phone; ERD/ERS; GSM; memory; children
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