The WIN-speller: a new intuitive auditory brain-computer interface spelling application.
The objective of this study was to test the usability of a new auditory Brain-Computer Interface (BCI) application for communication. We introduce a word based, intuitive auditory spelling paradigm the WIN-speller. In the WIN-speller letters are grouped by words, such as the word KLANG representing the letters A, G, K, L, and N. Thereby, the decoding step between perceiving a code and translating it to the stimuli it represents becomes superfluous. We tested 11 healthy volunteers and four end-users with motor impairment in the copy spelling mode. Spelling was successful with an average accuracy of 84% in the healthy sample. Three of the end-users communicated with average accuracies of 80% or higher while one user was not able to communicate reliably. Even though further evaluation is required, the WIN-speller represents a potential alternative for BCI based communication in end-users.
Department of Psychology, University of Würzburg Würzburg, Germany.
Sonja C
SC
Kleih
Department of Psychology, University of Würzburg Würzburg, Germany.
Andreas
A
Herweg
KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo Oslo, Norway.
Tobias
T
Kaufmann
Rehabilitationszentrum Bethesda, Beratungsstelle für Unterstützte Kommunikation Bad Kreuznach, Germany.
Pit
P
Staiger-Sälzer
Department of Psychology, University of Würzburg Würzburg, Germany.
Natascha
N
Gerstner
Department of Psychology, University of Würzburg Würzburg, Germany.
Andrea
A
Kübler
Brain-Computer Interface (BCI); P300; auditory; communication; motor-impaired end-user