Effects of mobile phone electromagnetic fields on an auditory order threshold task

Cinel, Caterina; Boldini, Angela; Russo, Riccardo; Fox, Elaine

doi:10.1002/bem.20321

Cited by 13 publications

(9 citation statements)

References 11 publications

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“…These findings agree with recent double-blind studies that examined effects from RF-EMFs ranging from 385.25 MHz to 2100 MHz, which found that cognitive performance does not change as a consequence of exposure [Regel et al, 2006;Russo et al, 2006;Cinel et al, 2007Cinel et al, , 2008Haarala et al, 2007;Riddervold et al, 2008Riddervold et al, , 2010Unterlechner et al, 2008;Eltiti et al, 2009; Nieto-Hernandez et al, 2010]. We have found similar results with TETRA, using similar short-term and working memory tasks, as we have previously found with exposure to GSM and UMTS for both sensitives and controls [Eltiti et al, 2009].…”

Section: Cognitive Function and Physiological Response 33supporting

confidence: 92%

Cognitive and physiological responses in humans exposed to a TETRA base station signal in relation to perceived electromagnetic hypersensitivity

Wallace¹,

Eltiti²,

Ridgewell³

et al. 2011

Bioelectromagnetics

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Terrestrial Trunked Radio (TETRA) technology ("Airwave") has led to public concern because of its potential interference with electrical activity in the brain. The present study is the first to examine whether acute exposure to a TETRA base station signal has an impact on cognitive functioning and physiological responses. Participants were exposed to a 420 MHz TETRA signal at a power flux density of 10 mW/m(2) as well as sham (no signal) under double-blind conditions. Fifty-one people who reported a perceived sensitivity to electromagnetic fields as well as 132 controls participated in a double-blind provocation study. Forty-eight sensitive and 132 control participants completed all three sessions. Measures of short-term memory, working memory, and attention were administered while physiological responses (blood volume pulse, heart rate, skin conductance) were monitored. After applying exclusion criteria based on task performance for each aforementioned cognitive measure, data were analyzed for 36, 43, and 48 sensitive participants for these respective tasks and, likewise, 107,125, and 129 controls. We observed no differences in cognitive performance between sham and TETRA exposure in either group; physiological response also did not differ between the exposure conditions. These findings are similar to previous double-blind studies with other mobile phone signals (900-2100 MHz), which could not establish any clear evidence that mobile phone signals affect health or cognitive function.

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Section: Cognitive Function and Physiological Response 33supporting

confidence: 92%

Cognitive and physiological responses in humans exposed to a TETRA base station signal in relation to perceived electromagnetic hypersensitivity

Wallace¹,

Eltiti²,

Ridgewell³

et al. 2011

Bioelectromagnetics

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“…The authors interpreted this finding as supporting their previous observations that pulse modulation of RF fields is necessary to induce changes in brain physiology. Cinel et al [2007] exposed 84 healthy volunteers to either an 888 MHz GSM signal or a CW signal. No effect was found on an auditory discrimination task from either signal type.…”

Section: Nervous System: Human Studiesmentioning

confidence: 99%

Review of possible modulation‐dependent biological effects of radiofrequency fields

Juutilainen

Höytö

Kumlin

et al. 2011

Bioelectromagnetics

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The biological effects of modulated radiofrequency (RF) electromagnetic fields have been a subject of debate since early publications more than 30 years ago, suggesting that relatively weak amplitude-modulated RF electromagnetic fields have specific biological effects different from the well-known thermal effects of RF energy. This discussion has been recently activated by the increasing human exposure to RF fields from wireless communication systems. Modulation is used in all wireless communication systems to enable the signal to carry information. A previous review in 1998 indicated that experimental evidence for modulation-specific effects of RF energy is weak. This article reviews recent studies (published after 1998) on the biological effects of modulated RF fields. The focus is on studies that have compared the effects of modulated and unmodulated (continuous wave) RF fields, or compared the effects of different kinds of modulations; studies that used only one type of signal are not included. While the majority of recent studies have reported no modulation-specific effects, there are a few interesting exceptions indicating that there may be specific effects from amplitude-modulated RF fields on the human central nervous system. These findings warrant follow-up studies.

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“…At perhaps the most basic level, auditory thresholds have not been consistently altered by MP exposure. For example, Maier et al (2004) reported performance decrements in an auditory threshold task after 50-minutes of MP-exposure, which was limited due to its small sample size (N=11), whereas Uloziene et al (2005), Parazzini et al (2007) and Cinel et al (2007) all failed to identify any MP effects on measures of auditory threshold. In terms of EEG measures of neural processes relating to audition, there is again no consistency.…”

Section: Introductionmentioning

confidence: 99%

Effects of 2G and 3G mobile phones on performance and electrophysiology in adolescents, young adults and older adults

Leung¹,

Croft²,

McKenzie³

et al. 2011

Clinical Neurophysiology

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Objective:This study was conducted to examine sensory and cognitive processing in adolescents, young adults and older adults, when exposed to 2nd (2G) and 3rd (3G) generation mobile phone signals. Methods:Tests employed were the auditory oddball and the N-back. Forty-one 13-15 year olds, forty-two 19-40 year olds and twenty 55-70 year olds were tested using a double-blind cross-over design, where each participant received Sham, 2G and 3G exposures, separated by at least 4 days. Results:Accuracy was not affected by exposure overall, but an augmented N1 was found in the 2G condition (independent of age group). The combined groups performed less accurately on the N-back during the 3G exposure (compared to Sham), with post hoc tests finding this effect in the adolescents only. No effect of 2G exposure on N-back was found either overall or in any group separately, and no effect of 2G or 3G exposure was found on reaction time. Neurophysiological underpinnings (event-related alpha; ERA) of the 3G behavioural effects were also affected, with more early ERA and slower late ERA in the 3G (compared to Sham). Conclusion/Significance:Employing tasks tailored to each individual's ability level, this study provides support for an effect of acute 3G exposure on human cognitive function.

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Effects of mobile phone electromagnetic fields on an auditory order threshold task

Cited by 13 publications

References 11 publications

Cognitive and physiological responses in humans exposed to a TETRA base station signal in relation to perceived electromagnetic hypersensitivity

Cognitive and physiological responses in humans exposed to a TETRA base station signal in relation to perceived electromagnetic hypersensitivity

Review of possible modulation‐dependent biological effects of radiofrequency fields

Effects of 2G and 3G mobile phones on performance and electrophysiology in adolescents, young adults and older adults

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