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Italië: Straling mobiele telefonie beïnvloedt cognitieve vermogens.    
Ga naar overzicht berichten in: Onderzoeken

Italië: Straling mobiele telefonie beïnvloedt cognitieve vermogens.
maandag, 23 januari 2012 - Dossier: Algemeen


Clinical Neurophysiology 2012 Jan;123(1):121-8.

Mobile phone emission modulates event-related desynchronization of alpha rhythms and cognitive-motor performance in healthy humans.

Vecchio F, Buffo P, Sergio S, Iacoviello D, Rossini PM, Babiloni C.

Department of Neuroscience, Hosp. Fatebenefratelli, Isola Tiberina, Rome, Italy.

Abstract
OBJECTIVES: It has been shown that electromagnetic fields of Global System for Mobile Communications phone (GSM-EMFs) affect human brain rhythms (Vecchio et al., 2007, 2010), but it is not yet clear whether these effects are related to alterations of cognitive functions.

METHODS: Eleven healthy adults underwent two electroencephalographic (EEG) sessions separated by 1 week, following a cross-over, placebo-controlled, double-blind paradigm. In both sessions, they performed a visual go/no-go task before real exposure to GSM-EMFs or after a sham condition with no EMF exposure. In the GSM real session, temporal cortex was continuously exposed to GSM-EMFs for 45min. In the sham session, the subjects were not aware that the EMFs had been switched off for the duration of the experiment. In the go/no-go task, a central fixation stimulus was followed by a green (50% of probability) or red visual stimulus. Subjects had to press the mouse button after the green stimuli (go trials). With reference to a baseline period, power decrease of low- (about 8-10Hz) and high-frequency (about 10-12Hz) alpha rhythms indexed the cortical activity.

RESULTS: It was found less power decrease of widely distributed high-frequency alpha rhythms and faster reaction time to go stimuli in the post- than pre-exposure period of the GSM session. No effect was found in the sham session.

CONCLUSIONS: These results suggest that the peak amplitude of alpha ERD and the reaction time to the go stimuli are modulated by the effect of the GSM-EMFs on the cortical activity.

SIGNIFICANCE: Exposure to GSM-EMFs for 45min may enhance human cortical neural efficiency and simple cognitive-motor processes in healthy adults.

Voor het originele abstract zie:
www.ncbi.nlm.nih.gov/pubmed/21873111?dopt=Abstract .


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