Med Biol Eng Comput - A P300-based brain-computer interface aimed at operating electronic devices at home for severely disabled people.

Tópicos

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Resumo

The present study aims at developing and assessing an assistive tool for operating electronic devices at home by means of a P300-based brain-computer interface (BCI). Fifteen severely impaired subjects participated in the study. The developed tool allows users to interact with their usual environment fulfilling their main needs. It allows for navigation through ten menus and to manage up to 113 control commands from eight electronic devices. Ten out of the fifteen subjects were able to operate the proposed tool with accuracy above 77 %. Eight out of them reached accuracies higher than 95 %. Moreover, bitrates up to 20.1 bit/min were achieved. The novelty of this study lies in the use of an environment control application in a real scenario: real devices managed by potential BCI end-users. Although impaired users might not be able to set up this system without aid of others, this study takes a significant step to evaluate the degree to which such populations could eventually operate a stand-alone system. Our results suggest that neither the type nor the degree of disability is a relevant issue to suitably operate a P300-based BCI. Hence, it could be useful to assist disabled people at home improving their personal autonomy.

Resumo Limpo

present studi aim develop assess assist tool oper electron devic home mean pbase braincomput interfac bci fifteen sever impair subject particip studi develop tool allow user interact usual environ fulfil main need allow navig ten menus manag control command eight electron devic ten fifteen subject abl oper propos tool accuraci eight reach accuraci higher moreov bitrat bitmin achiev novelti studi lie use environ control applic real scenario real devic manag potenti bci endus although impair user might abl set system without aid other studi take signific step evalu degre popul eventu oper standalon system result suggest neither type degre disabl relev issu suitabl oper pbase bci henc use assist disabl peopl home improv person autonomi

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