A Hierarchical BCI System Able to Discriminate between Non Intentional Control State and Four Intentional Control Activities

Julio Abascal, Andoni Arruti, José I. Martín, Javier Muguerza

Abstract

This paper presents a two-level hierarchical approach to recognising intentional and non intentional mental tasks on a brain-computer interface. A clustering process is performed at the first recognition level in order to differentiate Non intentional Control state (NC) patterns from Intentional Control (IC) patterns. At the second level, the IC detected patterns are classified by means of supervised learning techniques, applied to the type of movement (left hand, right hand, tongue or foot imagery movement). The objective is to achieve high correct movement recognition scores, with a low percentage of wrong decisions (that is, low false positive rates), to avoid user frustration. Offline evaluation of the proposed prototype shows 84.5% accuracy, with a 6.7% false positive rate.

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Paper Citation


in Harvard Style

Abascal J., Arruti A., I. Martín J. and Muguerza J. (2014). A Hierarchical BCI System Able to Discriminate between Non Intentional Control State and Four Intentional Control Activities . In Proceedings of the International Conference on Physiological Computing Systems - Volume 1: PhyCS, ISBN 978-989-758-006-2, pages 91-97. DOI: 10.5220/0004723000910097


in Bibtex Style

@conference{phycs14,
author={Julio Abascal and Andoni Arruti and José I. Martín and Javier Muguerza},
title={A Hierarchical BCI System Able to Discriminate between Non Intentional Control State and Four Intentional Control Activities},
booktitle={Proceedings of the International Conference on Physiological Computing Systems - Volume 1: PhyCS,},
year={2014},
pages={91-97},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004723000910097},
isbn={978-989-758-006-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Physiological Computing Systems - Volume 1: PhyCS,
TI - A Hierarchical BCI System Able to Discriminate between Non Intentional Control State and Four Intentional Control Activities
SN - 978-989-758-006-2
AU - Abascal J.
AU - Arruti A.
AU - I. Martín J.
AU - Muguerza J.
PY - 2014
SP - 91
EP - 97
DO - 10.5220/0004723000910097