Istočniki aktivnosti mozga, značimyje i neznačimyje dlja klassifikacii patternov EEG, sootvetstvujuščich voobraženiju dviženij

0376435 - ÚI 2013 RIV RU rus J - Článek v odborném periodiku
Bobrov, P. - Húsek, Dušan - Korshakov, A.V. - Frolov, A. A.
Istočniki aktivnosti mozga, značimyje i neznačimyje dlja klassifikacii patternov EEG, sootvetstvujuščich voobraženiju dviženij.
[Sources of brain activity relevant and not relevant for classifying of EEG patterns, corresponding to motor imagination.]
Nejrokomp'jutery: razrabotka, primenenie. -, č. 12 (2011), s. 3-15. ISSN 1999-8554
Grant CEP: GA ČR GAP202/10/0262; GA ČR GA205/09/1079
Grant ostatní: GA MŠk(CZ) ED1.1.00/02.0070
Program: ED
Výzkumný záměr: CEZ:AV0Z10300504
Klíčová slova: brain-computer interface * independent component analysis * EEG pattern classifying * motor imagination
Kód oboru RIV: IN - Informatika
http://www.radiotec.ru/catalog.php?cat=jr7&art=9529

Pokazano, čto pri voobraženii dviženij aktivnosť mozga javljajetsja superpozicijej komponent kak zavisjaščich, tak i ne zavisjaščich ot tipa voobražajemogo dviženija. Pokazano, čto isključenije poslednich iz analiza značitelno povyšajet effektivnosť interfejsa mozg-kompjuter, osnovannogo na raspoznavanii tipov voobražajemych dviženij.

The paper examines the sources of brain activity, contributing to EEG patterns, corresponding to motor imagination. The accuracy of their classifying specifies the efficiency of brain-computer interface (BCI), allowing to control external technical devices directly by signals of brain activity instead of natural muscle forces. The sources of brain activity corresponding to motor imagination are revealed by Independent Component Analysis (ICA). EEG during motor imagination is shown to be a superposition of components dependent and not dependent of the type of imaginary movement. Components dependent on the type of imaginary movement are relevant for EEG pattern classifying. They are localized in central brain areas. Components not dependent of the type of imaginary movement are localized in occipital areas. They relate to the attention to task performance independently of the imaginary movement and not relevant for BCI efficiency. Excluding of these components from EEG patterns improves essentially the BCI performance.
Trvalý link: http://hdl.handle.net/11104/0208835