Distance between exposed object and exposure source
40 cm
Setup
The mobile phone was positioned at the head of the bed at a distance of 40 cm to the vertex of the subject and was operated from the neighbouring room via an extension lead.
Besides a hypnotic effect with shortening of sleep onset latency, a REM (rapid eye movement) suppressive effect with reduction of duration and percentage of REM sleep was found. Spectral analysis revealed qualitative alterations of the EEGsignal during REM sleep with an increased spectralpower density. Knowing the relevance of REM sleep for adequate information processing in the brain, especially concerning mnestic functions and learning processes, the findings emphasize the necessity to carry out further investigations on the interaction of this type of electromagnetic fields and the humanorganism.
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