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Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism

Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism PRELIMINARY COMMUNICATION Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism Nora D. Volkow, MD Context The dramatic increase in use of cellular telephones has generated concern about possible negative effects of radiofrequency signals delivered to the brain. How- Dardo Tomasi, PhD ever, whether acute cell phone exposure affects the human brain is unclear. Gene-Jack Wang, MD Objective To evaluate if acute cell phone exposure affects brain glucose metabo- Paul Vaska, PhD lism, a marker of brain activity. Joanna S. Fowler, PhD Design, Setting, and Participants Randomized crossover study conducted be- Frank Telang, MD tween January 1 and December 31, 2009, at a single US laboratory among 47 healthy participants recruited from the community. Cell phones were placed on the left and right Dave Alexoff, BSE ears and positron emission tomography with ( F)fluorodeoxyglucose injection was used Jean Logan, PhD to measure brain glucose metabolism twice, once with the right cell phone activated (sound muted) for 50 minutes (“on” condition) and once with both cell phones deactivated (“off” Christopher Wong, MS condition). Statistical parametric mapping was used to compare metabolism between on HE DRAMATIC WORLDWIDE IN- and off conditions using paired t tests, and Pearson linear correlations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism

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Publisher
American Medical Association
Copyright
Copyright 2011 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.2011.186
pmid
21343580
Publisher site
See Article on Publisher Site

Abstract

PRELIMINARY COMMUNICATION Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism Nora D. Volkow, MD Context The dramatic increase in use of cellular telephones has generated concern about possible negative effects of radiofrequency signals delivered to the brain. How- Dardo Tomasi, PhD ever, whether acute cell phone exposure affects the human brain is unclear. Gene-Jack Wang, MD Objective To evaluate if acute cell phone exposure affects brain glucose metabo- Paul Vaska, PhD lism, a marker of brain activity. Joanna S. Fowler, PhD Design, Setting, and Participants Randomized crossover study conducted be- Frank Telang, MD tween January 1 and December 31, 2009, at a single US laboratory among 47 healthy participants recruited from the community. Cell phones were placed on the left and right Dave Alexoff, BSE ears and positron emission tomography with ( F)fluorodeoxyglucose injection was used Jean Logan, PhD to measure brain glucose metabolism twice, once with the right cell phone activated (sound muted) for 50 minutes (“on” condition) and once with both cell phones deactivated (“off” Christopher Wong, MS condition). Statistical parametric mapping was used to compare metabolism between on HE DRAMATIC WORLDWIDE IN- and off conditions using paired t tests, and Pearson linear correlations

Journal

JAMAAmerican Medical Association

Published: Feb 23, 2011

References