Cited by 501EEG and Brain-Computer InterfacesGaze Tracking and Assistive TechnologyEmotion and Mood Recognition

Towards a cure for BCI illiteracy

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Vidaurre, Carmen, Blankertz, Benjamin·2010·Brain Topography

Abstract

Brain-Computer Interfaces (BCIs) allow a user to control a computer application by brain activity as acquired, e.g., by EEG. One of the biggest challenges in BCI research is to understand and solve the problem of "BCI Illiteracy", which is that BCI control does not work for a non-negligible portion of users (estimated 15 to 30%). Here, we investigate the illiteracy problem in BCI systems which are based on the modulation of sensorimotor rhythms. In this paper, a sophisticated adaptation scheme is presented which guides the user from an initial subject-independent classifier that operates on simple features to a subject-optimized state-of-the-art classifier within one session while the user interacts the whole time with the same feedback application. While initial runs use supervised adaptation methods for robust co-adaptive learning of user and machine, final runs use unsupervised adaptation and therefore provide an unbiased measure of BCI performance. Using this approach, which does not involve any offline calibration measurement, good performance was obtained by good BCI participants (also one novice) after 3-6 min of adaptation. More importantly, the use of machine learning techniques allowed users who were unable to achieve successful feedback before to gain significant control over the BCI system. In particular, one participant had no peak of the sensory motor idle rhythm in the beginning of the experiment, but could develop such peak during the course of the session (and use voluntary modulation of its amplitude to control the feedback application).

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  1. Vidaurre C, Schlögl A, Blankertz B, Kawanabe M, Müller KR (2008) Unsupervised adaptation of the LDA classifier for brain–computer interfaces. In: Proceedings of the 4th international brain–computer interface workshop and training course 2008, Verlag der Technischen Universität Graz, pp 122–127

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Authors
Vidaurre, C., & Blankertz, B.
Affiliations
Technische Universität Berlin (DE)
Corresponding author
Vidaurre, Carmen
Venue
Brain Topography
Published
2009-11-28
Volume
23
Issue
2
Pages
194-198
ISSN
  • 0896-0267 (ISSN-L)
  • 1573-6792
OpenAlex
W2003621157
Cited by
501
References
24
Citations by year
2026: 31 · 2025: 24 · 2024: 30 · 2023: 28 · 2022: 33 · 2021: 42 · 2020: 45 · 2019: 32 · 2018: 46 · 2017: 31 · 2016: 37 · 2015: 29 · 2014: 30 · 2013: 23 · 2012: 19
FWCI
6.38
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Brain Topography (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • TECNALIA Publications (Fundación TECNALIA Research & Innovation) (submittedVersion, cc-by-nc)
  • Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
  • Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
Funders
  • European Commission (224631, 216886)
  • Deutsche Forschungsgemeinschaft (01GQ0850)
  • Bundesministerium für Bildung und Forschung (01GQ0850, 01IB001A)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Physical Sciences › Computer Science › Human-Computer Interaction › Gaze Tracking and Assistive Technology
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Emotion and Mood Recognition
Keywords
BCI illiteracy, brain-computer interface, sensorimotor rhythm, EEG, online adaptation, unsupervised adaptation, supervised adaptation, novice users, motor imagery
MeSH terms
Algorithms, Artificial Intelligence, Brain, Electroencephalography, Humans, Imagination, Learning, Motor Activity, Signal Processing, Computer-Assisted, Time Factors, User-Computer Interface, Feedback, Psychological

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