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Duitsland: Telecomzendmasten met sterke invloed op de slaapkwaliteit....maar niet door de EMV Zendmasten voor mobiele telefonie blijven psychiaters en psychotherapeuten veel werk bezorgen. Nu een dubbelblinde Duitse studie waaruit zou blijken dat de zendmasten een significant negatieve invloed op de slaapkwaliteit hebben....... maar alleen bij mensen die zich er zorgen over maken en zou niet gerelateerd zijn aan de elektromagnetische velden. Over toekomstige funding hoeven de onderzoekers zich geen zorgen meer te maken: American Journal of Human Biology 2010 Sep-Oct; 22(5):613-8. Do mobile phone base stations affect sleep of residents? Results from an experimental double-blind sham-controlled field study. Danker-Hopfe H, Dorn H, Bornkessel C, Sauter C. Department of Psychiatry and Psychotherapy, Sleep Medicine Competence Center, Charité University Medicine Berlin, Campus Benjamin Franklin, Berlin, Germany. heidi.danker-hopfe@charite.de Abstract OBJECTIVES: The aim of the present double-blind, sham-controlled, balanced randomized cross-over study was to disentangle effects of electromagnetic fields (EMF) and non-EMF effects of mobile phone base stations on objective and subjective sleep quality. METHODS: In total 397 residents aged 18-81 years (50.9% female) from 10 German sites, where no mobile phone service was available, were exposed to sham and GSM (Global System for Mobile Communications, 900 MHz and 1,800 MHz) base station signals by an experimental base station while their sleep was monitored at their homes during 12 nights. Participants were randomly exposed to real (GSM) or sham exposure for five nights each. Individual measurement of EMF exposure, questionnaires on sleep disorders, overall sleep quality, attitude towards mobile communication, and on subjective sleep quality (morning and evening protocols) as well as objective sleep data (frontal EEG and EOG recordings) were gathered. RESULTS: Analysis of the subjective and objective sleep data did not reveal any significant differences between the real and sham condition. During sham exposure nights, objective and subjective sleep efficiency, wake after sleep onset, and subjective sleep latency were significantly worse in participants with concerns about possible health risks resulting from base stations than in participants who were not concerned. CONCLUSIONS: The study did not provide any evidence for short-term physiological effects of EMF emitted by mobile phone base stations on objective and subjective sleep quality. However, the results indicate that mobile phone base stations as such (not the electromagnetic fields) may have a significant negative impact on sleep quality. Voor het originele abstract zie: www.ncbi.nlm.nih.gov/pubmed/20737608?dopt=Abstract . Exposure details: Do mobile phone base stations affect sleep of residents? Results from an experimental double-blind sham-controlled field study. Exposure 1: Main characteristics frequency: 900 - 1800 MHz type of field: electromagnetic field Exposure setup exposure source/structure: simulated GSM base station exposure time pattern: 5 nights setup details: two GSM 900 and two GSM 1800 channels were used for each sector; channels set to maximum transmit power in all eight time slots; additional generic GSM signals using six of the eight available time slots were transmitted to all sectors for both GSM 900 and GSM 1,800 to increase amplitude modulation sham: sham exposure was performed add. information: distance of the experimental base station to the houses: up to 500 m Study funded by Bundesamt für Strahlenschutz (BfS; Federal Office for Radiation Protection), Salzgitter, Germany Deutsches Mobilfunk Forschungsprogramm (DMF; German Mobile Phone Research Programme) at Federal Office for Radiation Protection (BfS) Gerelateerde studies: ?Lowden A et al. (2010): Sleep after mobile phone exposure in subjects with mobile phone-related... ?Leitgeb N et al. (2008): EMF-Protektions-Schlafstudie in der Nähe von Mobilfunk-Basisstationen. ?Regel SJ et al. (2007): Pulsed radio-frequency electromagnetic fields: dose-dependent effects on sleep,... ?Arnetz BB et al. (2007): The Effects of 884 MHz GSM Wireless Communication Signals on Self-reported... ?Leitgeb N (2007): Untersuchung der Schlafqualität bei elektrosensiblen Anwohnern von... ?Hung CS et al. (2007): Mobile phone 'talk-mode' signal delays EEG-determined sleep onset. ?Fritzer G et al. (2007): Effects of short- and long-term pulsed radiofrequency electromagnetic fields on... ?Hutter HP et al. (2006): Subjective symptoms, sleeping problems, and cognitive performance in subjects... ?Schreier N et al. (2006): The prevalence of symptoms attributed to electromagnetic field exposure: a... ?Hinrichs H et al. (2005): Human Sleep Under the Influence of a GSM 1800 Electromagnetic Far Field. ?Herr C et al. (2005): Relating Use of Mobile Phones to Reported Sleep Quality ?Danker-Hopfe H et al. (2005): Biological Effects of Electromagnetic Fields at Mobile Phone Frequencies on... ?Loughran SP et al. (2005): The effect of electromagnetic fields emitted by mobile phones on human sleep. ?Röösli M et al. (2004): Symptoms of ill health ascribed to electromagnetic field exposure--a... ?Leitgeb N et al. (2004): Investigation of sleep disorders in the vicinity of high frequency... ?Huber R et al. (2003): Radio frequency electromagnetic field exposure in humans: Estimation of SAR... ?Lebedeva NN et al. (2001): Investigation of brain potentials in sleeping humans exposed to the... ?Wagner P et al. (2000): Human sleep EEG under the influence of pulsed radio frequency electromagnetic... ?Huber R et al. (2000): Exposure to pulsed high-frequency electromagnetic field during waking affects... ?Borbely AA et al. (1999): Pulsed high-frequency electromagnetic field affects human sleep and sleep... ?Wagner P et al. (1998): Human sleep under the influence of pulsed radiofrequency electromagnetic... ?Mann K et al. (1996): Effects of pulsed high-frequency electromagnetic fields on human sleep. ?Mann K et al. (1996): REM-Unterdrückung, induziert durch digitale Mobiltelefone
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