The Effect of Mobile Telephone Electromagnetic Field on Human Brain Bioelectric Activity and Information Processing Speed
Journal Title: Psychology and Cognitive Sciences - Open Journal - Year 2017, Vol 3, Issue 4
Abstract
Aim: This study aimed to examine the effect of a mobile telephone electromagnetic field (MPEMF) on human brain bioelectric activity, at the T3 location, and information processing speed. Human brain bioelectric activity was assessed by calculating power spectral density (PSD) values from electroencephalogram (EEG) recordings, and information processing speed was assessed by the Paced Auditory Serial Addition Test (PASAT). Eighty-four people (ages 18-25) participated in this study. Materials and Methods: Each subject had two consecutive 15 minute single-channel EEGs (baseline and treatment) taken with either a T3/T5 or T3/CZ monopolar montage configuration. The treatment EEGs consisted of either exposure to an MP-EMF or a placebo telephone with no electromagnetic field. The mobile telephone or placebo telephone was held by the test subjects and against their left ear for the duration of the 15 minute treatment EEG. Subjects were blind to the possibility of exposure to a placebo telephone. The PASAT is subject to practice effect, so a Solomon four-group design was implemented. Half of the groups received a pre-test and post-test, while the other half only received a post-test. Results: A three-way mixed analysis of variance (ANOVA) was used to analyze the PSD values, and a meta-analytic approach was used to analyze the PASAT scores. Neither set of data, PSD measurements or PASAT scores, produced statistically significant results. Conclusion: These results indicate that 15 minutes of exposure to an MP-EMF does not produce a statistically significant effect on human brain bioelectric activity at the T3 location. While the PASAT scores also indicate no effect on cognitive functions from MP-EMF exposure, many confounding factors, like the sensitivity and the time of the administration of the PASAT and duration of MP-EMF exposure, may have influenced the statistics. Further research controlling for these factors is suggested.
Authors and Affiliations
Laura A. Kaneta
Keywords
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- EP ID EP542750
- DOI 10.17140/PCSOJ-3-131
- Views 194
- Downloads 0
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