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Effect of Distracting Background Speech in an Auditory Brain–Computer Interface

1
UMA-BCI Group, Departamento de Tecnología Electrónica, Universidad de Málaga, 29071 Malaga, Spain
2
Neuroimaging and Human Cognition, INCIA-UMR 5287-CNRS, Université de Bordeaux, 33076 Bordeaux, France
3
Laboratoire IMS, CNRS UMR 5218, Cognitive Team, Bordeaux INP-ENSC, 33400 Talence, France
*
Author to whom correspondence should be addressed.
Brain Sci. 2021, 11(1), 39; https://doi.org/10.3390/brainsci11010039
Received: 6 October 2020 / Revised: 12 November 2020 / Accepted: 23 December 2020 / Published: 1 January 2021
(This article belongs to the Section Neural Engineering, Neuroergonomics and Neurorobotics)
Studies so far have analyzed the effect of distractor stimuli in different types of brain–computer interface (BCI). However, the effect of a background speech has not been studied using an auditory event-related potential (ERP-BCI), a convenient option when the visual path cannot be adopted by users. Thus, the aim of the present work is to examine the impact of a background speech on selection performance and user workload in auditory BCI systems. Eleven participants tested three conditions: (i) auditory BCI control condition, (ii) auditory BCI with a background speech to ignore (non-attentional condition), and (iii) auditory BCI while the user has to pay attention to the background speech (attentional condition). The results demonstrated that, despite no significant differences in performance, shared attention to auditory BCI and background speech required a higher cognitive workload. In addition, the P300 target stimuli in the non-attentional condition were significantly higher than those in the attentional condition for several channels. The non-attentional condition was the only condition that showed significant differences in the amplitude of the P300 between target and non-target stimuli. The present study indicates that background speech, especially when it is attended to, is an important interference that should be avoided while using an auditory BCI. View Full-Text
Keywords: brain–computer interface (BCI); event-related potential (ERP); auditory; distractor; workload brain–computer interface (BCI); event-related potential (ERP); auditory; distractor; workload
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MDPI and ACS Style

Fernández-Rodríguez, Á.; Ron-Angevin, R.; Sanz-Arigita, E.J.; Parize, A.; Esquirol, J.; Perrier, A.; Laur, S.; André, J.-M.; Lespinet-Najib, V.; Garcia, L. Effect of Distracting Background Speech in an Auditory Brain–Computer Interface. Brain Sci. 2021, 11, 39. https://doi.org/10.3390/brainsci11010039

AMA Style

Fernández-Rodríguez Á, Ron-Angevin R, Sanz-Arigita EJ, Parize A, Esquirol J, Perrier A, Laur S, André J-M, Lespinet-Najib V, Garcia L. Effect of Distracting Background Speech in an Auditory Brain–Computer Interface. Brain Sciences. 2021; 11(1):39. https://doi.org/10.3390/brainsci11010039

Chicago/Turabian Style

Fernández-Rodríguez, Álvaro, Ricardo Ron-Angevin, Ernesto J. Sanz-Arigita, Antoine Parize, Juliette Esquirol, Alban Perrier, Simon Laur, Jean-Marc André, Véronique Lespinet-Najib, and Liliana Garcia. 2021. "Effect of Distracting Background Speech in an Auditory Brain–Computer Interface" Brain Sciences 11, no. 1: 39. https://doi.org/10.3390/brainsci11010039

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