Changes in EEG spectral characteristics in the course of neurofeedback training

Spectral power (SP) ratios of the EEG α and β frequencies were used as neurofeedback (NFB) for ten apparently healthy subjects (university students) to control a computer cursor in a graphic interface in three scenarios. The results showed that the scenario that used the SP ratio of the α and β 2 fr...

Full description

Saved in:
Bibliographic Details
Published inHuman physiology Vol. 41; no. 3; pp. 269 - 279
Main Authors Kiroy, V. N., Lazurenko, D. M., Shepelev, I. E., Minyaeva, N. R., Aslanyan, E. V., Bakhtin, O. M., Shaposhnikov, D. G., Vladimirskiy, B. M.
Format Journal Article
LanguageEnglish
Published Moscow Nauka/Interperiodica 18.05.2015
Subjects
Biomedicine
Human Physiology
Life Sciences
electroencephalography
multivariate analysis of variance (MANOVA)
power spectra
neurofeedback
Online AccessGet full text

Cover

More Information
Summary:Spectral power (SP) ratios of the EEG α and β frequencies were used as neurofeedback (NFB) for ten apparently healthy subjects (university students) to control a computer cursor in a graphic interface in three scenarios. The results showed that the scenario that used the SP ratio of the α and β 2 frequencies provided for the highest accuracy and best speed of task performance. The ratios including the β 1 frequency were found to be less efficient because an increase or a decrease in its SP could occur together with an increase or a decrease of the SPs of the α and β 2 frequencies. However, the subjects acquired the skill of controlling the cursor with an efficiency of 81%, which gradually grew during learning, after a relatively short period of time (5 training sessions within 2 weeks).
ISSN:0362-1197
1608-3164
DOI:10.1134/S0362119715030081