To investigate possible effects of radio frequency electromagnetic fields on EEG activity during sleep and on Brain function during wake (EEG in the resting state condition, slow EEG potentials, auditory evoked potentials) and cognitive performance measures in test of selective attention, divided attention and working memory in healthy elderly males (60 - 80 years).
To investigate possible effects of radio frequency electromagnetic fields on EEG activity during sleep and on Brain function during wake (EEG in the resting state condition, slow EEG potentials, auditory evoked potentials) and cognitive performance measures in test of selective attention, divided attention and working memory in healthy elderly males (60 - 80 years). Subjects will be exposed with signals from mobile communication handheld devices for 7.5 h during the night and for the whole duration of the test session during the day. Exposures will be GSM (900 MHz), TETRA (400 MHz) and sham. Each subject is exposed with each exposure three times in addition to an adaptation/screening night and day to learn the test. The results have to be discussed in the context of possible health risks resulting from RF-EMF exposure.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Enrollment
30
In a cross-over design subjects will be exposed to sham (placebo), GSM 900 MHz (2W/kg) and TETRA (6W/kg)
Competence Center Sleep Medicine
Berlin, Germany
sleep EEG (power)
Time frame: during exposure for 8 hours
resting state Waking EEG (power)
Time frame: during exposure 4 hours
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