ORIGINAL RESEARCH

Studying visual gnosis through EEG microstate analysis

About authors

1 Federal Center of Brain Research and Neurotechnologies of the Federal Medical Biological Agency, Moscow, Russia

2 Institute for Physics and Engineering in Biomedicine, National Research Nuclear University MEPhI, Moscow, Russia

Correspondence should be addressed: Sergey A. Gulyaev
Ostrovitianova, 1, str, 10, Moscow, Russia; moc.liamg@37veaylug.s

About paper

Compliance with ethical standards: the study was approved by the Ethics Committee of the Federal Center for Brain and Neurotechnologies of FMBA (protocol № 148-1 dated June 15, 2021) and carried out in accordance with the principles of biomedical ethics set out in the Declaration of Helsinki (version issued in 1964 and the next updated versions). The informed consent was submitted by all study participants.

Received: 2022-05-31 Accepted: 2022-06-28 Published online: 2022-07-19
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Fig. 1. Average values of EEG microstate occurrence per second for six microstate classes obtained when peforming loading tests
Fig. 2. Average values of changes in the EEG miscrostate contribution to the total energy of the scalp field (coverage) obtained when performing the main tests during the study
Fig. 3. Changes in EEG microstate duration (average values) depending on the load
Fig. 4. Comparison of average (for the group) quantitative characteristics of the Brodmann area signal recorded in the situation of solving the inverse EEG problem when performing tests during the study based on the model of six EEG microstate classes (p < 0.001; Pearson's chi-squared test). a — eyes closed, b — eyes open; c — performing recognition test