Mapping of Changes in EEG Spectrum Power during a Session of Biofeedback Training of the β1 Rhythm

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Changes in EEG spectrum power from 19 electrode sites were studied in 19 children with attention disorders during one session of EEG–biofeedback (EEG–BFB). EEG–BFB was aimed at increasing the relative power of the β1 rhythm (15–18 Hz) in sites Fz–C3 with a bipolar electrode assembly. Comparison of the EEG spectrum powers at relaxation versus training periods in one BFB session revealed significant changes in the left parasagittal frontoparietal area (F3, Fz, C3, C4, P3).

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