A NEW P300 NO EYE-GAZE BASED INTERFACE: GEOSPELL

F. Aloise, P. Aricò, F. Schettini, A. Riccio, M. Risetti, S. Salinari, D. Mattia, F. Babiloni, F. Cincotti

Abstract

Brain Computer Interface (BCI) is an alternative communication system which allows users to send commands and/or messages toward the outside not crossing the normal output channels of the brain, but conveying these outputs from the human brain to a computer (Wolpaw et al., 2002). In an EEG-based BCI messages are obtained from brain activity. This study presents a novel P300 based Brain Computer Interface requiring no eye gaze, and so usable in covert attention status, called GeoSpell (Geometric Speller). GeoSpell performances have been compared with those obtained by the subjects with the standard 6 by 6 P300 Speller (P3Speller) matrix which depends on eye gaze (Farwell and Donchin, 1988). A NASA Task Load Index (TLX) workload assessment was employed to provide a subjective rating about the task’s workload and satisfaction with respect to both the interfaces (NASA Human Performance Research Group 1987). Results shown comparable workload values for P3Speller and Geospell; this result has an important impact in term of efficiency and satisfaction for the use of the BCI devices. Geospell interface has shown an accuracy comparable with the P3Speller one but with a lower bit-rate.

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Paper Citation


in Harvard Style

Aloise F., Aricò P., Schettini F., Riccio A., Risetti M., Salinari S., Mattia D., Babiloni F. and Cincotti F. (2011). A NEW P300 NO EYE-GAZE BASED INTERFACE: GEOSPELL . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011) ISBN 978-989-8425-35-5, pages 227-232. DOI: 10.5220/0003161202270232


in Bibtex Style

@conference{biosignals11,
author={F. Aloise and P. Aricò and F. Schettini and A. Riccio and M. Risetti and S. Salinari and D. Mattia and F. Babiloni and F. Cincotti},
title={A NEW P300 NO EYE-GAZE BASED INTERFACE: GEOSPELL},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)},
year={2011},
pages={227-232},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003161202270232},
isbn={978-989-8425-35-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)
TI - A NEW P300 NO EYE-GAZE BASED INTERFACE: GEOSPELL
SN - 978-989-8425-35-5
AU - Aloise F.
AU - Aricò P.
AU - Schettini F.
AU - Riccio A.
AU - Risetti M.
AU - Salinari S.
AU - Mattia D.
AU - Babiloni F.
AU - Cincotti F.
PY - 2011
SP - 227
EP - 232
DO - 10.5220/0003161202270232