Paving the Way for Motor Imagery-Based Tele-Rehabilitation through a Fully Wearable BCI System

Pasquale Arpaia, Damien Coyle, Antonio Esposito, Angela Natalizio, Marco Parvis, Marisa Pesola, Ersilia Vallefuoco

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
17 Downloads (Pure)

Abstract

The present study introduces a brain–computer interface designed and prototyped to be wearable and usable in daily life. Eight dry electroencephalographic sensors were adopted to acquire the brain activity associated with motor imagery. Multimodal feedback in extended reality was exploited to improve the online detection of neurological phenomena. Twenty-seven healthy subjects used the proposed system in five sessions to investigate the effects of feedback on motor imagery. The sample was divided into two equal-sized groups: a “neurofeedback” group, which performed motor imagery while receiving feedback, and a “control” group, which performed motor imagery with no feedback. Questionnaires were administered to participants aiming to investigate the usability of the proposed system and an individual’s ability to imagine movements. The highest mean classification accuracy across the subjects of the control group was about 62% with 3% associated type A uncertainty, and it was 69% with 3% uncertainty for the neurofeedback group. Moreover, the results in some cases were significantly higher for the neurofeedback group. The perceived usability by all participants was high. Overall, the study aimed at highlighting the advantages and the pitfalls of using a wearable brain–computer interface with dry sensors. Notably, this technology can be adopted for safe and economically viable tele-rehabilitation.
Original languageEnglish
Article number5836
Pages (from-to)1-17
Number of pages17
JournalSensors
Volume23
Issue number13
Early online date23 Jun 2023
DOIs
Publication statusPublished online - 23 Jun 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

  • electroencephalographic sensor
  • dry sensors
  • motor imagery
  • brain-computer interface
  • neurofeedback
  • tele-rehabilitation
  • brain–computer interface

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