Development and testing an online near-infrared spectroscopy brain-computer interface tailored to an individual with severe congenital motor impairments.
Purpose: For non-verbal individuals, brain-computer interfaces (BCIs) are a potential means of communication. Near-infrared spectroscopy (NIRS) is a brain-monitoring modality that has been considered for BCIs. To date, limited NIRS-BCI testing has involved online classification, particularly with in...
| Publicado en: | Disability & Rehabilitation: Assistive Technology Vol. 13; no. 6; pp. 581 - 592 |
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| Autores principales: | , |
| Formato: | case study research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Aug2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=130896281&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 130896281 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17483107 1X04 jtl: Disability & Rehabilitation: Assistive Technology issn: 17483107 maglogo: Y pubinfo: dt: Aug2018 vid: 13 iid: 6 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 130896281 130896281 130896281 10.1080/17483107.2017.1357212 130896281 ppf: 581 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Development and testing an online near-infrared spectroscopy brain-computer interface tailored to an individual with severe congenital motor impairments. aug: au: Schudlo, Larissa C Chau, Tom affil: Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada sug: subj: Motor Skills Disorders Communication Aids for Persons with Disabilities Evaluation Spectroscopy, Near-Infrared Utilization Brain-Computer Interfaces Utilization Brain Physiology Memory Human Descriptive Statistics Adult Male Feedback Methods Questionnaires Adult: 19-44 years Male ab: Purpose: For non-verbal individuals, brain-computer interfaces (BCIs) are a potential means of communication. Near-infrared spectroscopy (NIRS) is a brain-monitoring modality that has been considered for BCIs. To date, limited NIRS-BCI testing has involved online classification, particularly with individuals with severe motor impairments. Materials and methods: We tested an online NIRS-BCI developed for a non-verbal individual with severe congenital motor impairments. The binary BCI differentiated categorical verbal fluency task (VFT) performance and rest using prefrontal measurements. The participant attended five sessions, the last two of which were online with classification feedback. Results: An online classification accuracy of 63.33% was achieved using a linear discriminant classifier trained on a four-dimensional feature set. An offline, cross-validation analysis of all data yielded an optimal adjusted classification accuracy of 66.6 ± 9.11%. Inconsistent functional responses, contradictory effects of feedback, participant fatigue and motion artefacts were identified as challenges to online classification specific to this participant. Conclusions: Results suggest potential in using an NIRS-BCI controlled by the VFT in instances of severe congenital impairments. Further testing with users with severe disabilities is necessary. Implications for Rehabilitation: Brain-computer interfaces (BCIs) can provide a non-motor based means of communication for individuals with severe motor impairments. Near-infrared spectroscopy (NIRS) is a haemodynamic-based brain-imaging modality used in BCIs. To date, NIRS-BCIs have not been thoroughly tested with potential target users. This case study shows that NIRS-BCIs may offer a means of practical communication for individuals with severe congenital impairments and continued exploration is advisable. pubtype: Academic Journal doctype: case study research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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