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EnglishThis study aimed to evaluate by functional near-infrared spectroscopy (fNIRS), the effects induced by an acute exposure (40mins) to a GSM (Global System for Mobile Communications) signal emitted by a mobile phone (MP) on the oxygenation of the frontal cortex. Eleven healthy volunteers underwent two sessions (Real and Sham exposure) after a crossover, randomized, double-blind paradigm. The whole procedure lasted 60mins: 10-mins baseline (Bsl), 40-mins (Exposure), and 10-mins recovery (Post-Exp). Together with frontal hemodynamics, heart rate, objective and subjective vigilance, and self-evaluation of subjective symptoms were also assessed. The fNIRS results showed a slight influence of the GSM signal on frontal cortex, with a linear increase in HHb as a function of time in the Real exposure condition (F4,402.67; P0.04). No other measure showed any GSM exposure-dependent changes. These results suggest that fNIRS is a convenient tool for safely and noninvasively investigating the cortical activation in MP exposure experimental settings. Given the short-term effects observed in this study, the results should be confirmed on a larger sample size and using a multichannel instrument that allows the investigation of a wider portion of the frontal cortex.©2009 ISCBFM All rights reserved.
Acute mobile phones exposure affects frontal cortex hemodynamics as evidenced by functional near-infrared spectroscopy / Curcio, G.; Ferrara, M.; Limongi, T.; Tempesta, D.; Sante, G. D.; Gennaro, L. D.; Quaresima, V.; Ferrari, M.. - In: JOURNAL OF CEREBRAL BLOOD FLOW & METABOLISM. - ISSN 1559-7016. - STAMPA. - 29:5(2009), pp. 903-910.
| Titolo: | Acute mobile phones exposure affects frontal cortex hemodynamics as evidenced by functional near-infrared spectroscopy |
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| Data di pubblicazione: | 2009 |
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| Digital Object Identifier (DOI): | http://dx.doi.org/10.1038/jcbfm.2009.14 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Curcio_JCBFM_2009.pdf | Articolo principale | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2851232
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