Analysis of EEG rhythms under local sinusoidal ELF magnetic field exposure: An approach to neurofeedback enhancement on attention performance — Oak Academic Publishing
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Analysis of EEG rhythms under local sinusoidal ELF magnetic field exposure: An approach to neurofeedback enhancement on attention performance
Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Medical Physics Department, Tarbiat Modares University, Tehran, Iran
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Department of Psychology and Educational Sciences, University of Tehran, Tehran, Iran
1 Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Medical Physics Department, Tarbiat Modares University, Tehran, Iran
3 Department of Psychology and Educational Sciences, University of Tehran, Tehran, Iran
Although there is no consensus with respect to that if exposed Extremely Low Frequency Magnetic Field (ELF-MF) affects human brain activity for guidelines of brain management, there are some evidences related with human attention changes. Therefore, this study evaluates the effects of 45 Hz sinusoidal ELF (360 μT) at Cz regions, cantered at dominant frequency using Electroencephalogram (EEG) analysis. The purpose was to extracte transient or permanent events as an index for new neurofeedback (NF) system improvement. Twenty-four healthy volunteers aged between 20 and 28 years of age were randomly assigned to one of two groups, which differed in the type of NF training concerning the exposed and non-exposed magnetic field effect on performance in attention tests during NF. Results indicate that theta and beta EEG rhythms variations in exposed group changed more significantly in comparison of traditional NF (P < 0.05). These results suggest a new design of NF system.
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