A note on brain actuated spelling with the Berlin brain-computer interface

Blankertz, B., Krauledat, M., Dornhege, G., Williamson, J., Murray-Smith, R. and Müller, K.-R. (2007) A note on brain actuated spelling with the Berlin brain-computer interface. Lecture Notes in Computer Science, 4557, pp. 759-768. (doi:10.1007/978-3-540-73281-5_83)

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Publisher's URL: http://dx.doi.org/10.1007/978-3-540-73281-5_83

Abstract

Brain-Computer Interfaces (BCIs) are systems capable of decoding neural activity in real time, thereby allowing a computer application to be directly controlled by the brain. Since the characteristics of such direct brain-tocomputer interaction are limited in several aspects, one major challenge in BCI research is intelligent front-end design. Here we present the mental text entry application ‘Hex-o-Spell’ which incorporates principles of Human-Computer Interaction research into BCI feedback design. The system utilises the high visual display bandwidth to help compensate for the extremely limited control bandwidth which operates with only two mental states, where the timing of the state changes encodes most of the information. The display is visually appealing, and control is robust. The effectiveness and robustness of the interface was demonstrated at the CeBIT 2006 (world’s largest IT fair) where two subjects operated the mental text entry system at a speed of up to 7.6 char/min.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Murray-Smith, Professor Roderick and Williamson, Dr John
Authors: Blankertz, B., Krauledat, M., Dornhege, G., Williamson, J., Murray-Smith, R., and Müller, K.-R.
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
College/School:College of Science and Engineering > School of Computing Science
Journal Name:Lecture Notes in Computer Science
Publisher:Springer
ISSN:1611-3349
Copyright Holders:Copyright © 2007 Springer
First Published:First published in Lecture Notes in Computer Science 4557:759-768
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.

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