Article

OBJECTIVE: To investigate the efficacy and effects of transcranial direct current
stimulation (tDCS) on motor imagery brain-computer interface (MI-BCI) with
robotic feedback for stroke rehabilitation. DESIGN: A sham-controlled, randomized
controlled trial. SETTING: Patients recruited through a hospital stroke
rehabilitation program. PARTICIPANTS: Subjects (N=19) who incurred a stroke 0.8
to 4.3 years prior, with moderate to severe upper extremity functional
impairment, and passed BCI screening. INTERVENTIONS: Ten sessions of 20 minutes
of tDCS or sham before 1 hour of MI-BCI with robotic feedback upper limb stroke
rehabilitation for 2 weeks. Each rehabilitation session comprised 8 minutes of
evaluation and 1 hour of therapy. MAIN OUTCOME MEASURES: Upper extremity
Fugl-Meyer Motor Assessment (FMMA) scores measured end-intervention at week 2 and
follow-up at week 4, online BCI accuracies from the evaluation part, and
laterality coefficients of the electroencephalogram (EEG) from the therapy part
of the 10 rehabilitation sessions. RESULTS: FMMA score improved in both groups at
week 4, but no intergroup differences were found at any time points. Online
accuracies of the evaluation part from the tDCS group were significantly higher
than those from the sham group. The EEG laterality coefficients from the therapy
part of the tDCS group were significantly higher than those of the sham group.
CONCLUSIONS: The results suggest a role for tDCS in facilitating motor imagery in
stroke.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS