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Updated: Aug 7, 2026
Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
Mobile phone effects on children's event-related oscillatory EEG during an auditory memory task
Christina M Krause1, Christian Haarala Björnberg, Mirka Pesonen
1Cognitive Science Unit, Department of Psychology, University of Helsinki, Helsinki. Finland. christina.krause@helsinki@helsinki.fi
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 approximately 4 - 8 Hz EEG frequencies. During recognition, the active MP transformed these brain oscillatory responses in the approximately 4 - 8 Hz and approximately 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.
