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Main Title: Brain–computer interfacing under distraction: an evaluation study
Author(s): Brandl, Stephanie
Frølich, Linda
Höhne, Johannes
Müller, Klaus-Robert
Samek, Wojciech
Type: Article
Is Supplemented By: 10.14279/depositonce-9827
Language Code: en
Abstract: Objective. While motor-imagery based brain–computer interfaces (BCIs) have been studied over many years by now, most of these studies have taken place in controlled lab settings. Bringing BCI technology into everyday life is still one of the main challenges in this field of research. Approach. This paper systematically investigates BCI performance under 6 types of distractions that mimic out-of-lab environments. Main results. We report results of 16 participants and show that the performance of the standard common spatial patterns (CSP) + regularized linear discriminant analysis classification pipeline drops significantly in this 'simulated' out-of-lab setting. We then investigate three methods for improving the performance: (1) artifact removal, (2) ensemble classification, and (3) a 2-step classification approach. While artifact removal does not enhance the BCI performance significantly, both ensemble classification and the 2-step classification combined with CSP significantly improve the performance compared to the standard procedure. Significance. Systematically analyzing out-of-lab scenarios is crucial when bringing BCI into everyday life. Algorithms must be adapted to overcome nonstationary environments in order to tackle real-world challenges.
Issue Date: 31-Aug-2016
Date Available: 8-Apr-2020
DDC Class: 006 Spezielle Computerverfahren
Subject(s): brain-computer interface
out-of-lab environment
common spatial patterns
regularized linear discriminant analysis
Sponsor/Funder: BMBF, 01GQ1115, Adaptive Gehirn-Computer-Schnittstellen (BCI) in nichtstationären Umgebungen
Journal Title: Journal of Neural Engineering
Publisher: Institute of Physics Publishing (IOP)
Publisher Place: Bristol
Volume: 13
Issue: 5
Article Number: 056012
Publisher DOI: 10.1088/1741-2560/13/5/056012
EISSN: 1741-2552
ISSN: 1741-2560
Appears in Collections:FG Maschinelles Lernen » Publications

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