There are evidences that confirm the effect ofmagnetic fields (MFs) on brain signals and some psycho-logical disorders such as headache, migraine and depres-sion. The aim of the present study was to investigatechanges in EEG power spectrum due to localized exposurein different parts of the brain by extremely low-frequencymagnetic fields (ELF-MFs) to extract some protocols fortreatment of some psychological disorders. In addition,regular effects were investigated by increasing intensity ofELF-MF. Therefore, EEG relative power spectrum wasevaluated at T4, T3, F3, F4, and Cz points, when all thepoints were exposed to MFs with 45, 17, 10, 5, and 3 Hzfrequencies, separately. Intensity of MF was 0, 100, 240, or360lT in four sessions. Significant changes were observedin different EEG bands caused by locally exposing to ELF-MF in different points of brain (P <0.05). Some exposureto MFs decreased alpha band of frontal and central areas inclosed-eyes state. Based on the findings in this study, someprotocols can be designed using a combination of variousMFs exposures to conduct the brain signals that is neces-sary to evaluate clinically.

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