Invariance and variability in interaction error-related potentials and their consequences for classification

Abu-Alqumsan, M., Kapeller, C., Hintermüller, C., Guger, C. and Peer, A. (2017) Invariance and variability in interaction error-related potentials and their consequences for classification. Journal of Neural Engineering. ISSN 1741-2560 [In Press] Available from: http://eprints.uwe.ac.uk/32678

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Abstract/Description

Objective. This paper discusses the invariance and variability in interaction error-related potentials (ErrPs), where a special focus is laid upon the factors of (1) the human mental processing required to assess interface actions (2) time (3) subjects. Approach. Three different experiments were designed as to vary primarily with respect to the mental processes that are necessary to assess whether an interface error has occurred or not. The three experiments were carried out with 11 subjects in a repeated-measures experimental design. To study the effect of time, a subset of the recruited subjects additionally performed the same experiments on different days. Main results. The ErrP variability across the different experiments for the same subjects was found largely attributable to the different mental processing required to assess interface actions. Nonetheless, we found that interaction ErrPs are empirically invariant over time (for the same subject and same interface) and to a lesser extent across subjects (for the same interface). Significance. The obtained results may be used to explain across study variability of ErrPs, as well as to define guidelines for approaches to the ErrP classifier transferability problem.

Item Type:Article
Uncontrolled Keywords:EEG, BCI, error-related potentials, P300, invariance, classification
Faculty/Department:Faculty of Environment and Technology > Department of Engineering Design and Mathematics
ID Code:32678
Deposited By: Professor A. Peer
Deposited On:07 Aug 2017 08:49
Last Modified:06 Sep 2017 16:46

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