An auditory multiclass brain-computer interface with natural stimuli: Usability evaluation with healthy participants and a motor impaired end user
Identifieur interne : 000363 ( Pmc/Curation ); précédent : 000362; suivant : 000364An auditory multiclass brain-computer interface with natural stimuli: Usability evaluation with healthy participants and a motor impaired end user
Auteurs : Nadine Simon [Allemagne] ; Ivo K Thner [Allemagne] ; Carolin A. Ruf [Allemagne] ; Emanuele Pasqualotto [Belgique] ; Andrea Kübler [Allemagne] ; Sebastian Halder [Allemagne]Source :
- Frontiers in Human Neuroscience [ 1662-5161 ] ; 2015.
Abstract
Brain-computer interfaces (BCIs) can serve as muscle independent communication aids. Persons, who are unable to control their eye muscles (e.g., in the completely locked-in state) or have severe visual impairments for other reasons, need BCI systems that do not rely on the visual modality. For this reason, BCIs that employ auditory stimuli were suggested. In this study, a multiclass BCI spelling system was implemented that uses animal voices with directional cues to code rows and columns of a letter matrix. To reveal possible training effects with the system, 11 healthy participants performed spelling tasks on 2 consecutive days. In a second step, the system was tested by a participant with amyotrophic lateral sclerosis (ALS) in two sessions. In the first session, healthy participants spelled with an average accuracy of 76% (3.29 bits/min) that increased to 90% (4.23 bits/min) on the second day. Spelling accuracy by the participant with ALS was 20% in the first and 47% in the second session. The results indicate a strong training effect for both the healthy participants and the participant with ALS. While healthy participants reached high accuracies in the first session and second session, accuracies for the participant with ALS were not sufficient for satisfactory communication in both sessions. More training sessions might be needed to improve spelling accuracies. The study demonstrated the feasibility of the auditory BCI with healthy users and stresses the importance of training with auditory multiclass BCIs, especially for potential end-users of BCI with disease.
Url:
DOI: 10.3389/fnhum.2014.01039
PubMed: 25620924
PubMed Central: 4288388
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Ruf</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen</institution><country>Tübingen, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Pasqualotto, Emanuele" sort="Pasqualotto, Emanuele" uniqKey="Pasqualotto E" first="Emanuele" last="Pasqualotto">Emanuele Pasqualotto</name><affiliation wicri:level="1"><nlm:aff id="aff4"><institution>Psychological Sciences Research Institute, Université Catholique de Louvain</institution><country>Louvain-la-Neuve, Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Kubler, Andrea" sort="Kubler, Andrea" uniqKey="Kubler A" first="Andrea" last="Kübler">Andrea Kübler</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Institute of Psychology, University of Würzburg</institution><country>Würzburg, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Halder, Sebastian" sort="Halder, Sebastian" uniqKey="Halder S" first="Sebastian" last="Halder">Sebastian Halder</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Institute of Psychology, University of Würzburg</institution><country>Würzburg, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author></analytic><series><title level="j">Frontiers in Human Neuroscience</title><idno type="eISSN">1662-5161</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Brain-computer interfaces (BCIs) can serve as muscle independent communication aids. Persons, who are unable to control their eye muscles (e.g., in the completely locked-in state) or have severe visual impairments for other reasons, need BCI systems that do not rely on the visual modality. For this reason, BCIs that employ auditory stimuli were suggested. In this study, a multiclass BCI spelling system was implemented that uses animal voices with directional cues to code rows and columns of a letter matrix. To reveal possible training effects with the system, 11 healthy participants performed spelling tasks on 2 consecutive days. In a second step, the system was tested by a participant with amyotrophic lateral sclerosis (ALS) in two sessions. In the first session, healthy participants spelled with an average accuracy of 76% (3.29 bits/min) that increased to 90% (4.23 bits/min) on the second day. Spelling accuracy by the participant with ALS was 20% in the first and 47% in the second session. The results indicate a strong training effect for both the healthy participants and the participant with ALS. While healthy participants reached high accuracies in the first session and second session, accuracies for the participant with ALS were not sufficient for satisfactory communication in both sessions. More training sessions might be needed to improve spelling accuracies. The study demonstrated the feasibility of the auditory BCI with healthy users and stresses the importance of training with auditory multiclass BCIs, especially for potential end-users of BCI with disease.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Bauer, G" uniqKey="Bauer G">G. Bauer</name></author><author><name sortKey="Gerstenbrand, F" uniqKey="Gerstenbrand F">F. Gerstenbrand</name></author><author><name sortKey="Rumpl, E" uniqKey="Rumpl E">E. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Front Hum Neurosci</journal-id><journal-id journal-id-type="iso-abbrev">Front Hum Neurosci</journal-id><journal-id journal-id-type="publisher-id">Front. Hum. Neurosci.</journal-id><journal-title-group><journal-title>Frontiers in Human Neuroscience</journal-title></journal-title-group><issn pub-type="epub">1662-5161</issn><publisher><publisher-name>Frontiers Media S.A.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25620924</article-id><article-id pub-id-type="pmc">4288388</article-id><article-id pub-id-type="doi">10.3389/fnhum.2014.01039</article-id><article-categories><subj-group subj-group-type="heading"><subject>Neuroscience</subject><subj-group><subject>Original Research Article</subject></subj-group></subj-group></article-categories><title-group><article-title>An auditory multiclass brain-computer interface with natural stimuli: Usability evaluation with healthy participants and a motor impaired end user</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Simon</surname><given-names>Nadine</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="aff" rid="aff2"><sup>2</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/185467"></uri></contrib><contrib contrib-type="author"><name><surname>Käthner</surname><given-names>Ivo</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><xref ref-type="author-notes" rid="fn001"><sup>*</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/185364"></uri></contrib><contrib contrib-type="author"><name><surname>Ruf</surname><given-names>Carolin A.</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/37890"></uri></contrib><contrib contrib-type="author"><name><surname>Pasqualotto</surname><given-names>Emanuele</given-names></name><xref ref-type="aff" rid="aff4"><sup>4</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/173339"></uri></contrib><contrib contrib-type="author"><name><surname>Kübler</surname><given-names>Andrea</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/3713"></uri></contrib><contrib contrib-type="author"><name><surname>Halder</surname><given-names>Sebastian</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><uri xlink:type="simple" xlink:href="http://community.frontiersin.org/people/u/15265"></uri></contrib></contrib-group><aff id="aff1"><sup>1</sup><institution>Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen</institution><country>Tübingen, Germany</country></aff><aff id="aff2"><sup>2</sup><institution>Max Planck Institute for Intelligent Systems</institution><country>Tübingen, Germany</country></aff><aff id="aff3"><sup>3</sup><institution>Institute of Psychology, University of Würzburg</institution><country>Würzburg, Germany</country></aff><aff id="aff4"><sup>4</sup><institution>Psychological Sciences Research Institute, Université Catholique de Louvain</institution><country>Louvain-la-Neuve, Belgium</country></aff><author-notes><fn fn-type="edited-by"><p>Edited by: Klaus Gramann, Berlin Institute of Technology, Germany</p></fn><fn fn-type="edited-by"><p>Reviewed by: Johannes Höhne, Technische Universität Berlin, Germany; Maarten De Vos, Oldenburg University, Germany</p></fn><corresp id="fn001">*Correspondence: Ivo Käthner, Institute of Psychology, University of Würzburg, Marcusstr. 9-11, 97070 Würzburg, Germany e-mail: <email xlink:type="simple">ivo.kaethner@uni-wuerzburg.de</email></corresp><fn fn-type="other" id="fn002"><p>This article was submitted to the journal Frontiers in Human Neuroscience.</p></fn></author-notes><pub-date pub-type="epub"><day>09</day><month>1</month><year>2015</year></pub-date><pub-date pub-type="collection"><year>2014</year></pub-date><volume>8</volume><elocation-id>1039</elocation-id><history><date date-type="received"><day>22</day><month>9</month><year>2014</year></date><date date-type="accepted"><day>11</day><month>12</month><year>2014</year></date></history><permissions><copyright-statement>Copyright © 2015 Simon, Käthner, Ruf, Pasqualotto, Kübler and Halder.</copyright-statement><copyright-year>2015</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0/"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</license-p></license></permissions><abstract><p>Brain-computer interfaces (BCIs) can serve as muscle independent communication aids. Persons, who are unable to control their eye muscles (e.g., in the completely locked-in state) or have severe visual impairments for other reasons, need BCI systems that do not rely on the visual modality. For this reason, BCIs that employ auditory stimuli were suggested. In this study, a multiclass BCI spelling system was implemented that uses animal voices with directional cues to code rows and columns of a letter matrix. To reveal possible training effects with the system, 11 healthy participants performed spelling tasks on 2 consecutive days. In a second step, the system was tested by a participant with amyotrophic lateral sclerosis (ALS) in two sessions. In the first session, healthy participants spelled with an average accuracy of 76% (3.29 bits/min) that increased to 90% (4.23 bits/min) on the second day. Spelling accuracy by the participant with ALS was 20% in the first and 47% in the second session. The results indicate a strong training effect for both the healthy participants and the participant with ALS. While healthy participants reached high accuracies in the first session and second session, accuracies for the participant with ALS were not sufficient for satisfactory communication in both sessions. More training sessions might be needed to improve spelling accuracies. The study demonstrated the feasibility of the auditory BCI with healthy users and stresses the importance of training with auditory multiclass BCIs, especially for potential end-users of BCI with disease.</p></abstract><kwd-group><kwd>P300</kwd><kwd>EEG</kwd><kwd>auditory BCI</kwd><kwd>brain-computer interface</kwd><kwd>communication</kwd><kwd>ALS</kwd></kwd-group><counts><fig-count count="5"></fig-count><table-count count="3"></table-count><equation-count count="0"></equation-count><ref-count count="55"></ref-count><page-count count="14"></page-count><word-count count="10754"></word-count></counts></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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