Effects of mobile phone signals over BOLD response while performing a cognitive task

Giuseppe Curcio, Davide Nardo, Mauro Gianni Perrucci, Patrizio Pasqualetti, Tzu Ling Chen, Cosimo Del Gratta, Gian Luca Romani, Paolo Maria Rossini

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalClinical Neurophysiology
Volume123
Issue number1
DOIs
Publication statusPublished - Jan 2012

Keywords

  • Blood-oxygen-level dependent
  • Electromagnetic fields
  • Global System for Mobile Communication
  • Go-NoGo task
  • Radiofrequency

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Physiology (medical)
  • Sensory Systems

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