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Individual working memory capacity traced from multivariate pattern classification of EEG spectral power
Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.ORCID-id: 0000-0002-1660-199X
2018 (engelsk)Inngår i: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, Institute of Electrical and Electronics Engineers Inc. , 2018, s. 4812-4815Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Working Memory (WM) processing is central for human cognitive behavior. Using neurofeedback training to enhance the individual WM capacity is a promising technique but requires careful consideration when choosing the feedback signal. Feedback in terms of univariate spectral power (specifically theta and alpha power) has yielded questionable behavioral effects. However, a promising new direction for WM neurofeedback training is by using a measure of WM that is extracted by multivariate pattern classification. This study recorded EEG oscillatory activity from 15 healthy participants while they were engaged in the n-back task, n[1,2]. Univariate measures of the theta, alpha, and theta-over-alpha power ratio and a measure of WM extracted from multivariate pattern classification (of n-back task load conditions) was compared in relation to individual n-back task performance. Results show that classification performance is positively correlated to individual 2-back task performance while theta, alpha and thetaover-alpha power ratio is not. These results suggest that the discriminability of multivariate EEG oscillatory patterns between two WM load conditions reflects individual WM capacity. 

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers Inc. , 2018. s. 4812-4815
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Identifikatorer
URN: urn:nbn:se:mdh:diva-41851DOI: 10.1109/EMBC.2018.8513130Scopus ID: 2-s2.0-85056645033ISBN: 9781538636466 (tryckt)OAI: oai:DiVA.org:mdh-41851DiVA, id: diva2:1274146
Konferanse
40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018; Hawaii Convention Center, Honolulu; United States; 18 July 2018 through 21 July 2018
Tilgjengelig fra: 2018-12-28 Laget: 2018-12-28 Sist oppdatert: 2018-12-28bibliografisk kontrollert

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