title: Effects of mobile phone signals over BOLD response while performing a cognitive task.
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.
  
  
  CONCLUSIONS
  No changes in BOLD response have been observed as a consequence of RF-EMFs exposure.
authors: Dipartimento di Scienze della Salute, Università degli Studi dell'Aquila, Via Vetoio, Coppito 2, 67100 L'Aquila, Italy.
authors: Giuseppe
authors: G
authors: Curcio
authors: Davide
authors: D
authors: Nardo
authors: Mauro Gianni
authors: MG
authors: Perrucci
authors: Patrizio
authors: P
authors: Pasqualetti
authors: Tzu Ling
authors: TL
authors: Chen
authors: Cosimo
authors: C
authors: Del Gratta
authors: Gian Luca
authors: GL
authors: Romani
authors: Paolo Maria
authors: PM
authors: Rossini
mesh_terms: D000328:Adult; D001921:Brain / Q000098:blood supply / Q000502:physiology; D001931:Brain Mapping / Q000295:instrumentation / Q000379:methods; D040421:Cell Phone; D003071:Cognition / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010100:Oxygen / Q000097:blood; D011597:Psychomotor Performance / Q000502:physiology*; D011846:Radio Waves; D011930:Reaction Time / Q000502:physiology; D055815:Young Adult
chemical_list: D010100:Oxygen