2023 / 03

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DOI: 10.47183/mes.2023.025

ORIGINAL RESEARCH

Features of EEG microstate analysis in post-stroke aphasia

Gulyaev SA1,2, Khanukhova LM2, Garmash AA1
About authors

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

2 La Salute Clinic, Moscow, Russia

Correspondence should be addressed: Sergey A. Gulyaev
Ramenki, 31, k. 136, Moscow, 119607, Russia; moc.liamg@37veaylug.s

About paper

Author contributions: the authors contributed equally to the study.

Compliance with ethical standards: the study was approved based on the contract between the National Research Nuclear University MEPhI and La Salute Clinic (protocol № 09-01/23 of 09 January 2023), approved by the ethics committee of the National Research Nuclear University MEPhI (protocol of 25 May 2023), and conducted in accordance with the principles of biomedical ethics set out in the Declaration of Helsinki (1964) and its subsequent updates.

Received: 2023-06-20 Accepted: 2023-07-22 Published online: 2023-08-13
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Fig. 1. Histogram of EEG activity (in %) over individual Brodmann areas in cases of motor aphasic disorder variant predominance, p < 0.05 (Pearson’s test)
Fig. 2. Histogram of EEG activity (in %) over individual Brodmann areas in cases of sensory aphasic disorder variant predominance, p < 0.05 (Pearson’s test)
Fig. 3. Histogram of EEG activity (in %) in cases of total (mixed) aphasic disorder variant predominance, p < 0.05 (Pearson’s test)
Table 1. Registration of the EEG activity frequency characteristics over the areas of the main speech centers
Note: (ANOVA-test), * — p < 0.001; * * — p > 0.05
Table 2. Changes in the characteristics of EEG microstates relative to their contribution to formation of the head’s overall bioelectric field
Note: t-test, * — p < 0.05; * * — p > 0.05.
Table 3. Changes in the characteristics of EEG microstates relative to their frequency of occurrence per 1 s
Note: t-test, * — p < 0.05; * * — p > 0.05.
Table 4. Changes in the characteristics of EEG microstates relative to their duration in 1 s
Note: t-test, * — p < 0.05; * * — p > 0.05.