Effects of electromagnetic fields emitted by cellular phones on the electroencephalogram during a visual working memory task

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)

Interna författare/redaktörer

Publikationens författare: Krause CM, Sillanmäki L, Koivisto M, Häggqvist A, Saarela C, Revonsuo A, Laine M, Hämäläinen H
Publiceringsår: 2000
Tidskrift: International Journal of Radiation Biology
Tidskriftsakronym: INT J RADIAT BIOL
Volym: 76
Nummer: 12
Artikelns första sida, sidnummer: 1659
Artikelns sista sida, sidnummer: 1667
Antal sidor: 9
ISSN: 0955-3002
eISSN: 1362-3095


Purpose: To examine the effects of electromagnetic fields (EMF) emitted by cellular phones on the event-related desynchronization/synchronization (ERD/ERS) responses of the 4-6, 6-8, 8-10 and 10-12 Hz EEG frequency bands during cognitive processing.Materials and methods: Twenty-four subjects performed a Visual sequential letter task (n-back task) with three different working memory load conditions: zero, one and two items. AU subjects performed the memory task both with and without exposure to a digital 902 MHz EMF in counterbalanced order.Results: The presence of EMF altered the ERD/ERS responses in the 6-8 and 8-10 Hz frequency bands but only when examined as a function of memory load and depending also on whether the presented stimulus was a target or not.Conclusions: The results suggest that the exposure to EMF modulates the responses of EEG oscillatory activity similar to8 Hz specifically during cognitive processes.

Senast uppdaterad 2020-25-01 vid 04:17