In Search of New Protocols of Neurofeedback: Independent Components of Event-Related Potentials

Authors

  • Juri D. Kropotov
  • Marina V. Pronina
  • Valery A. Ponomarev
  • Pavel V. Murashev

DOI:

https://doi.org/10.1080/10874208.2011.570696

Abstract

In this article we present a method for decomposing individual multichannel event-related potentials (ERPs) into functionally meaningful components by means of spatial filtering. The spatial filters are based on topographies of components obtained by application of Independent Component Analysis (ICA) to a large collection (n¼297) of individual ERPs in the paired GO/NOGO task. sLORETA has been used for depicting neuronal generators of independent components (ICs). The ICs are divided into sensory-related (visual N1 and N170) and executive components presumably associated with engagement operation (P3b), action suppression (P3 NOGO) and conflict monitoring (P4 NOGO) operations. In a pilot study on 10 healthy subjects the feasibility of ICA/ERP-based neurofeedback approach has been tested. A neurofeedback protocol was implemented to test the amplitude training of the P3b independent component generated in the parietal cortex. The effect of 20 min of neurofeedback on ERPs in healthy subjects is presented. The amplitude of the P3b component did not change significantly during the training session; however, the amplitude of another component named Slow Positive Wave statistically decreased during both the training and sham conditions. We believe that this change may be sufficiently significant to warrant additional research, as it may hold promise for alternative treatments for some psychiatric illnesses.

Downloads

Published

2016-08-29

Issue

Vol. 15 No. 2 (2011)

Section

RESEARCH ARTICLES

License

© International Society for Neurofeedback and Research (ISNR), all rights reserved. This article (the “Article”) may be accessed online from ISNR at no charge. The Article may be viewed online, stored in electronic or physical form, or archived for research, teaching, and private study purposes. The Article may be archived in public libraries or university libraries at the direction of said public library or university library. Any other reproduction of the Article for redistribution, sale, resale, loan, sublicensing, systematic supply, or other distribution, including both physical and electronic reproduction for such purposes, is expressly forbidden. Preparing or reproducing derivative works of this article is expressly forbidden. ISNR makes no representation or warranty as to the accuracy or completeness of any content in the Article.  From 1995 to 2013 the Journal of Neurotherapy was the official publication of ISNR (www. Isnr.org); on April 27, 2016 ISNR acquired the journal from Taylor & Francis Group, LLC. In 2014, ISNR established its official open-access journal NeuroRegulation (ISSN: 2373-0587; www.neuroregulation.org).