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  • Title: [Comparison of electroencephalogram changes at cardiovascular training in adolescents of subpolar and polar northern territories].
    Author: Demin DB, Poskotinova LV, Krivonogova EV.
    Journal: Ross Fiziol Zh Im I M Sechenova; 2014 Jan; 100(1):128-38. PubMed ID: 25464728.
    Abstract:
    The features of the electroencephalogram (EEG) at the heart rate variability single biofeedback session in adolescents aged 15-17 years living in the subpolar and polar northern regions were determined. In adolescents of the subpolar region identified shaped age EEG pattern. We have established higher diencephalic and subcortical brain structures activity manifested in the elevated theta-activity levels and the diffuse photic driving reactions in adolescents of the polar region than in adolescents of subpolar region. In the dynamics of the biofeedback sessions in both regions there were identified groups of persons with both increased alpha-activity spectral power and decreased of it. After biofeedback sessions in adolescents of polar region more prolonged increase of alpha-activity, more pronounced reduction of theta-activity and the photic driving reactions were revealed. Changes in EEG patterns are most characteristic of the right brain hemisphere involving the frontal brain areas.
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