The spectral power coherence of the EEG under different EMF conditions.
The present study introduces the concept of spectral power coherence (SPC), which reflects the pattern of coordination of the four basic EEG bands (delta, theta, alpha, and beta) at a specific location of the brain. The SPC was calculated for the pre-stimulus EEG signal during an auditory memory task under different electromagnetic field (EMF) conditions (900 MHz and 1800 MHz). The results showed that delta rhythm is less consequential in the overall cooperation between the bands than the higher frequency theta, alpha and beta rhythms. Additionally, it has been shown that the radiation effect on SPC is different for the two genders. In the absence of radiation males exhibit higher overall SPC than females. These differences disappear in the presence of 900 MHz and are reversed in the presence of 1800 MHz.
Hountala
Chrissanthi D
CD
National Technical University of Athens, Department of Electrical Engineering, Division of Information Transmission Systems and Material Technology, 9 Iroon Polytecneioy Street, Athens 15773, Greece. chuntala@mail.ntua.gr
Maganioti
Argiro E
AE
Papageorgiou
Charalambos C
CC
Nanou
Eleni D
ED
Kyprianou
Miltiades A
MA
Tsiafakis
Vassilis G
VG
Rabavilas
Andreas D
AD
Capsalis
Christos N
CN
D000328:Adult; D001921:Brain / Q000502:physiology / Q000528:radiation effects*; D001931:Brain Mapping; D004307:Dose-Response Relationship, Radiation; D004569:Electroencephalography / Q000528:radiation effects*; D004574:Electromagnetic Fields; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000528:radiation effects; D009483:Neuropsychological Tests; D012737:Sex Factors