The authors focused on event related desynchronisation (ERD) and synchronisation (ERS) (ERD/ERS is a pattern in the EEGsignal, that shows functional alterations of neuronal networks) of the 4-6 Hz, 6-8 Hz, 8-10 Hz and 10-12 Hz narrow EEGfrequency bands. EEGfrequencies are subdivided into frequency bands. The simultaneously recorded responses of different EEGfrequency bands differ from each other and reflect different cognitive and/or mental processes.
Distance between exposed object and exposure source
20 mm
Chamber
The subject was seated in a comfortable chair in a dimmed registration room and was instructed to look at a TV screen placed 1.5 m in front of him/her and to avoid unnecessary eye movements.
Setup
A standard GSM phone was mounted to the subject's head over the right posteriortemporal region in a normal use position. The antenna was located about 20 mm from the head. The phone was operated via a computer from an adjacent room.
Additional info
Each EEG test session was subdivided into two segments, with or without EMF in single-blind, counterbalanced order. The total testing time was about 60 min.
Krause CM et al.
(2007):
Effects of pulsed and continuous wave 902 MHz mobile phone exposure on brain oscillatory activity during cognitive processing
Krause CM et al.
(2004):
Effects of electromagnetic field emitted by cellular phones on the EEG during an auditory memory task: a double blind replication study
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