The detailed summary of this article is not available in your language or incomplete. Would you like to see a complete translation of the summary? Then please contact us →
To investigate the influence of pulsed high-frequency electromagnetic fields of digital mobile phones on sleep in healthy humans.
|ばく露時間||continuous for 8 h|
|Pulse width||580 µs|
|Repetition frequency||217 Hz|
|Distance between exposed object and exposure source||40 cm|
|ばく露装置の詳細||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.|
|Additional information||After an adaptation night, polysomnographies were performed during two successive nights. Half of the subjects were exposed to the EMF on the first night and the other half on the second night (randomized and blinded).|
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 EEG signal during REM sleep with an increased spectral power 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 human organism.