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On the control of brain-computer interfaces by users with cerebral palsy.

Daly, Ian and Billinger, Martin and Laparra-Hernández, José and Aloise, Fabio and García, Mariano Lloria and Faller, Josef and Scherer, Reinhold and Müller-Putz, Gernot (2013) 'On the control of brain-computer interfaces by users with cerebral palsy.' Clinical Neurophysiology, 124 (9). 1787 - 1797. ISSN 1388-2457

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Abstract

Objective Brain-computer interfaces (BCIs) have been proposed as a potential assistive device for individuals with cerebral palsy (CP) to assist with their communication needs. However, it is unclear how well-suited BCIs are to individuals with CP. Therefore, this study aims to investigate to what extent these users are able to gain control of BCIs. Methods This study is conducted with 14 individuals with CP attempting to control two standard online BCIs (1) based upon sensorimotor rhythm modulations, and (2) based upon steady state visual evoked potentials. Results Of the 14 users, 8 are able to use one or other of the BCIs, online, with a statistically significant level of accuracy, without prior training. Classification results are driven by neurophysiological activity and not seen to correlate with occurrences of artifacts. However, many of these users’ accuracies, while statistically significant, would require either more training or more advanced methods before practical BCI control would be possible. Conclusions The results indicate that BCIs may be controlled by individuals with CP but that many issues need to be overcome before practical application use may be achieved. Significance This is the first study to assess the ability of a large group of different individuals with CP to gain control of an online BCI system. The results indicate that six users could control a sensorimotor rhythm BCI and three a steady state visual evoked potential BCI at statistically significant levels of accuracy (SMR accuracies; mean ± STD, 0.821 ± 0.116, SSVEP accuracies; 0.422 ± 0.069).

Item Type: Article
Uncontrolled Keywords: Brain, Humans, Cerebral Palsy, Electroencephalography, Imagination, Thinking, Task Performance and Analysis, Evoked Potentials, Visual, Adult, Middle Aged, Female, Male, Young Adult, Feedback, Sensory, Brain-Computer Interfaces
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Elements
Date Deposited: 27 May 2021 13:33
Last Modified: 27 May 2021 13:33
URI: http://repository.essex.ac.uk/id/eprint/25469

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