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Usability and Workload of Access Technology for People With Severe Motor Impairment: A Comparison of Brain-Computer Interfacing and Eye Tracking

Pasqualotto, Emanuele ; Matuz, Tamara ; Federici, Stefano ; Ruf, Carolin A ; Bartl, Mathias ; Olivetti Belardinelli, Marta ; Birbaumer, Niels ; Halder, Sebastian

Neurorehabilitation and Neural Repair, November 2015, Vol.29(10), pp.950-957 [Tạp chí có phản biện]

ISSN: 1545-9683 ; E-ISSN: 1552-6844 ; DOI: 10.1177/1545968315575611

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  • Nhan đề:
    Usability and Workload of Access Technology for People With Severe Motor Impairment: A Comparison of Brain-Computer Interfacing and Eye Tracking
  • Tác giả: Pasqualotto, Emanuele ; Matuz, Tamara ; Federici, Stefano ; Ruf, Carolin A ; Bartl, Mathias ; Olivetti Belardinelli, Marta ; Birbaumer, Niels ; Halder, Sebastian
  • Chủ đề: Bci ; Brain-Computer Interface ; Eye Tracking ; Usability ; Cognitive Workload ; Assistive Technology ; ALS ; Medicine
  • Là 1 phần của: Neurorehabilitation and Neural Repair, November 2015, Vol.29(10), pp.950-957
  • Mô tả: Background. Eye trackers are widely used among people with amyotrophic lateral sclerosis, and their benefits to quality of life have been previously shown. On the contrary, Brain-computer interfaces (BCIs) are still quite a novel technology, which also serves as an access technology for people with severe motor impairment. Objective. To compare a visual P300-based BCI and an eye tracker in terms of information transfer rate (ITR), usability, and cognitive workload in users with motor impairments. Methods. Each participant performed 3 spelling tasks, over 4 total sessions, using an Internet browser, which was controlled by a spelling interface that was suitable for use with either the BCI or the eye tracker. At the end of each session, participants evaluated usability and cognitive workload of the system. Results. ITR and System Usability Scale (SUS) score were higher for the eye tracker (Wilcoxon signed-rank test: ITR T = 9, P = .016; SUS T = 12.50, P = .035). Cognitive workload was higher for the BCI (T = 4; P = .003). Conclusions. Although BCIs could be potentially useful for people with severe physical disabilities, we showed that the usability of BCIs based on the visual P300 remains inferior to eye tracking. We suggest that future research on visual BCIs should use eye tracking–based control as a comparison to evaluate performance or focus on nonvisual paradigms for persons who have lost gaze control.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 1545-9683 ; E-ISSN: 1552-6844 ; DOI: 10.1177/1545968315575611
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     ©2016 Library and Information Center, Vietnam National University, Hanoi. All Right Reserved.
     ©2016 Library and Information Center, Vietnam National University, Hanoi. All Right Reserved.
  Nhà C1T, Đại học Quốc gia Hà Nội
144 Xuân Thủy, Cầu Giấy, Hà Nội
  (024) 3754 6545    lic@vnu.edu.vn

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