Effects of electromagnetic field emitted by cellular phones on the EEG during an auditory memory task: A double blind replication study

Krause, Christina M.; Haarala, Christian; Sillanmäki, Lauri; Koivisto, Mika; Alanko, Katarina; Revonsuo, Antti; Laine, Matti; Hämäläinen, Heikki

doi:10.1002/bem.10143

Cited by 98 publications

(91 citation statements)

References 24 publications

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“…Their findings indicated that EMF decreased the theta band activity only during their memory retrieval task, and increased the alpha band activity. However, a replication study by Krause et al [2004] did not confirm these findings.…”

Section: Introductionmentioning

confidence: 82%

Effects of radiofrequency radiation emitted by cellular telephones on the cognitive functions of humans

Eliyahu¹,

Luria

Hareuveny³

et al. 2006

Bioelectromagnetics

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The present study examined the effects of exposure to Electromagnetic Radiation emitted by a standard GSM phone at 890 MHz on human cognitive functions. This study attempted to establish a connection between the exposure of a specific area of the brain and the cognitive functions associated with that area. A total of 36 healthy right-handed male subjects performed four distinct cognitive tasks: spatial item recognition, verbal item recognition, and two spatial compatibility tasks. Tasks were chosen according to the brain side they are assumed to activate. All subjects performed the tasks under three exposure conditions: right side, left side, and sham exposure. The phones were controlled by a base station simulator and operated at their full power. We have recorded the reaction times (RTs) and accuracy of the responses. The experiments consisted of two sections, of 1 h each, with a 5 min break in between. The tasks and the exposure regimes were counterbalanced. The results indicated that the exposure of the left side of the brain slows down the left-hand response time, in the second-laterpart of the experiment. This effect was apparent in three of the four tasks, and was highly significant in only one of the tests. The exposure intensity and its duration exceeded the common exposure of cellular phone users.

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Section: Introductionmentioning

confidence: 82%

Effects of radiofrequency radiation emitted by cellular telephones on the cognitive functions of humans

Eliyahu¹,

Luria

Hareuveny³

et al. 2006

Bioelectromagnetics

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“…Some studies of human cognitive functioning have shown that exposure to electromagnetic fields of the type emitted by mobile phones can affect cerebral functions (e.g., Hamblin et al, 2004) as well as the behavioral performance of exposed volunteers (e.g., Keetley et al, 2006;Koivisto et al, 2000). Other studies, however, have found no significant effects either on human behaviour (Russo et al, 2006;Haarala et al, 2004), or on brain processes (e.g., Krause et al, 2003).…”

mentioning

confidence: 99%

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

Cinel

Boldini

Russo

et al. 2007

Bioelectromagnetics

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The effect of acute exposure to radio frequency electromagnetic fields (RF EMF) generated by mobile phones on an auditory threshold task was investigated. 168 participants performed the task while exposed to RF EMF in one testing session (either global system for mobile communication (GSM) or unmodulated signals) while in a separate session participants were exposed to sham signals. Lateralization effects were tested by exposing participants either on the left side or on the right side of the head. No significant effect of exposure to RF EMF was detected, suggesting that acute exposure to RF EMFs does not affect performance in the order threshold task. Bioelectromagnetics 28:493–496, 2007. © 2007 Wiley‐Liss, Inc.

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“…Some of the studies indicated that EMF caused a reduction in the voltage of slow potentials. However, a more detailed analysis of the results and their verification in further experiments did not confirm the earlier observations [12][13][14]. Considering the limitations of the EEG method, in our current work we decided to use determinations of P300 wave to assess EMF effect on auditory cortex ERPs.…”

Section: Discussionmentioning

confidence: 79%

Effects of GSM signals during exposure to event related potentials (ERPs)

Bąk¹,

Dudarewicz²,

Zmyślony³

et al. 2010

International Journal of Occupational Medicine and Environmental Health

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Objectives: The primary aim of this work was to assess the effect of electromagnetic field (EMF) from the GSM mobile phone system on human brain function. The assessment was based on the assay of event related potentials (ERPs). Material and Methods:The study group consisted of 15 volunteers, including 7 men and 8 women. The test protocol comprised determination of P300 wave in each volunteer during exposure to the EMF. To eliminate possible effects of the applied test procedure on the final result, the test was repeated without EMF exposure. P300 latency, amplitude, and latency of the N1, N2, P2 waves were analysed. Results: The statistical analysis revealed an effect of EMF on P300 amplitude. In the experiment with EMF exposure, lower P300 amplitudes were observed only at the time in which the volunteers were exposed to EMF; when the exposure was discontinued, the values of the amplitude were the same as those observed before EMF application. No such change was observed when the experiment was repeated with sham exposure, which may be considered as an indirect proof that lower P300 amplitude values were due to EMF exposure. No statistically significant changes were noted in the latencies of the N1, N2, P2 waves that precede the P300 wave, nor in the latency of the P300 itself. Conclusions: The results suggest that exposure to GSM EMF exerts some effects on CNS, including effects on long latency ERPs.

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Effects of electromagnetic field emitted by cellular phones on the EEG during an auditory memory task: A double blind replication study

Cited by 98 publications

References 24 publications

Effects of radiofrequency radiation emitted by cellular telephones on the cognitive functions of humans

Effects of radiofrequency radiation emitted by cellular telephones on the cognitive functions of humans

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

Effects of GSM signals during exposure to event related potentials (ERPs)

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