Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz

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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Kaiser, V; Bauernfeind, G; Kreilinger, A; Kaufmann, T; Kübler, A; Neuper, C; Müller-Putz, GR.
Cortical effects of user training in a motor imagery based brain-computer interface measured by fNIRS and EEG.
Neuroimage. 2014; 85 Pt 1(7):432-444 Doi: 10.1016/j.neuroimage.2013.04.097
Web of Science PubMed FullText FullText_MUG

Co-Autor*innen der Med Uni Graz: Kreilinger Alex
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Abstract:: The present study aims to gain insights into the effects of training with a motor imagery (MI)-based brain-computer interface (BCI) on activation patterns of the sensorimotor cortex. We used functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG) to investigate long-term training effects across 10 sessions using a 2-class (right hand and feet) MI-based BCI in fifteen subjects. In the course of the training a significant enhancement of activation pattern emerges, represented by an [oxy-Hb] increase in fNIRS and a stronger event-related desynchronization in the upper β-frequency band in the EEG. These effects were only visible in participants with relatively low BCI performance (mean accuracy ≤ 70%). We found that training with an MI-based BCI affects cortical activation patterns especially in users with low BCI performance. Our results may serve as a valuable contribution to the field of BCI research and provide information about the effects that training with an MI-based BCI has on cortical activation patterns. This might be useful for clinical applications of BCI which aim at promoting and guiding neuroplasticity. Copyright © 2013 Elsevier Inc. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing): Adult -; Brain Mapping -; Brain-Computer Interfaces -; Cerebral Cortex - physiology; Data Interpretation, Statistical -; Electroencephalography - methods; Female -; Humans -; Male -; Motor Cortex - physiology; Signal Processing, Computer-Assisted -; Somatosensory Cortex - physiology; Spectroscopy, Near-Infrared - methods; Young Adult -
Find related publications in this database (Keywords): Brain-computer interface (BCI); BCI training; Motor imagery (MI); Cortical training effects; Functional near-infrared spectroscopy (fNIRS); Electroencephalography (EEG)