TY - JOUR
T1 - Effects of mobile phone signals over BOLD response while performing a cognitive task
AU - Curcio, Giuseppe
AU - Nardo, Davide
AU - Perrucci, Mauro Gianni
AU - Pasqualetti, Patrizio
AU - Chen, Tzu Ling
AU - Del Gratta, Cosimo
AU - Romani, Gian Luca
AU - Rossini, Paolo Maria
PY - 2012/1
Y1 - 2012/1
N2 - Objective: The aim of this study was to investigate the effects induced by an exposure to a GSM signal (Global System for Mobile Communication) on brain BOLD (blood-oxygen-level dependent) response, as well as its time course while performing a Go-NoGo task. Methods: Participants were tested twice, once in presence of a " real" exposure to GSM radiofrequency signal and once under a " sham" exposure (placebo condition). BOLD response of active brain areas and reaction times (RTs) while performing the task were measured both before and after the exposure. Results: RTs to the somatosensory task did not change as a function of exposure (real vs sham) to GSM signal. BOLD results revealed significant activations in inferior parietal lobule, insula, precentral and postcentral gyri associated with Go responses after both ''real'' and ''sham'' exposure, whereas no significant effects were observed in the ROI analysis. Conclusions: The present fMRI study did not detect any brain activity changes by mobile phones. Also RTs in a somatosensory task resulted unaffected. Significance: No changes in BOLD response have been observed as a consequence of RF-EMFs exposure.
AB - Objective: The aim of this study was to investigate the effects induced by an exposure to a GSM signal (Global System for Mobile Communication) on brain BOLD (blood-oxygen-level dependent) response, as well as its time course while performing a Go-NoGo task. Methods: Participants were tested twice, once in presence of a " real" exposure to GSM radiofrequency signal and once under a " sham" exposure (placebo condition). BOLD response of active brain areas and reaction times (RTs) while performing the task were measured both before and after the exposure. Results: RTs to the somatosensory task did not change as a function of exposure (real vs sham) to GSM signal. BOLD results revealed significant activations in inferior parietal lobule, insula, precentral and postcentral gyri associated with Go responses after both ''real'' and ''sham'' exposure, whereas no significant effects were observed in the ROI analysis. Conclusions: The present fMRI study did not detect any brain activity changes by mobile phones. Also RTs in a somatosensory task resulted unaffected. Significance: No changes in BOLD response have been observed as a consequence of RF-EMFs exposure.
KW - Blood-oxygen-level dependent
KW - Electromagnetic fields
KW - Global System for Mobile Communication
KW - Go-NoGo task
KW - Radiofrequency
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U2 - 10.1016/j.clinph.2011.06.007
DO - 10.1016/j.clinph.2011.06.007
M3 - Article
C2 - 21741302
AN - SCOPUS:84655161992
VL - 123
SP - 129
EP - 136
JO - Clinical Neurophysiology
JF - Clinical Neurophysiology
SN - 1388-2457
IS - 1
ER -