Browsing by Author "Iskra, S"
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- ItemEffects of 2G and 3G mobile phones on human alpha rhythms: Resting EEG in adolescents, young adults, and the elderly.(2010-08-09) Croft, R J; Leung, S; McKenzie, R J; Loughran, S P; Iskra, S; Hamblin, D L; Cooper, N RThe present study was conducted to determine whether adolescents and or the elderly are more sensitive to mobile phone MP related bioeffects than young adults and to determine this for both 2nd generation 2G GSM and 3rd generation 3G W CDMA exposures To test this resting alpha activity 8 12 Hz band of the electroencephalogram was assessed because numerous studies have now reported it to be enhanced by MP exposure Forty one 13 15 year olds forty two 19 40 year olds and twenty 55 70 year olds were tested using a double blind crossover design where each participant received Sham 2G and 3G exposures separated by at least 4 days Alpha activity during exposure relative to baseline was recorded and compared between conditions Consistent with previous research the young adults alpha was greater in the 2G compared to Sham condition however no effect was seen in the adolescent or the elderly groups and no effect of 3G exposures was found in any group The results provide further support for an effect of 2G exposures on resting alpha activity in young adults but fail to support a similar enhancement in adolescents or the elderly or in any age group as a function of 3G exposure
- ItemEffects of 2G and 3G mobile phones on performance and electrophysiology in adolescents, young adults and older adults.(2011-09-29) Leung, S; Croft, R J; McKenzie, R J; Iskra, S; Silber, B; Cooper, N R; O'Neill, B; Cropley, V; Diaz-Trujillo, A; Hamblin, D; Simpson, DThis study examined sensory and cognitive processing in adolescents young adults and older adults when exposed to 2nd 2G and 3rd 3G generation mobile phone signals
- ItemSimulation of pulsed ELF magnetic fields generated by GSM mobile phone handsets for human electromagnetic bioeffects research.(2008-10-24) Perentos, N; Iskra, S; McKenzie, R J; Cosi, IHuman provocation studies that investigate the effects of Global System for Mobiles GSM communication systems on the brain have focused on Radio Frequency RF exposure We wish to further extend such study by investigating the effect of both RF and Extremely Low Frequency ELF field exposure the latter generated by the GSM handset s battery switching The use of a commercial handset as an exposure source for such investigations is problematic for a number of reasons and therefore a simulated exposure source capable of producing both RF and ELF components of exposure is desirable As a first step in developing such a source we have quantified and characterized the ELF field from several commercial handsets the RF characteristics being already well understood Through experimental measurement we deduce that these fields can be sufficiently simulated by a 9 mm radius loop residing 10 mm beneath the front surface of the handset device and carrying enough current to generate peak fields of 25 microT at the surface of the handset