Neural correlates of motor recovery after robot-assisted stroke rehabilitation: a case series study

Yang teng Fan, Keh chung Lin, Ho ling Liu, Ching yi Wu*, Yau yau Wai, Tsong hai Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Robot-assisted bilateral arm therapy (RBAT) has shown promising results in stroke rehabilitation; however, connectivity mapping of the sensorimotor networks after RBAT remains unclear. We used fMRI before and after RBAT and a dose-matched control intervention (DMCI) to explore the connectivity changes in 6 subacute stroke patients. Sensorimotor functions improved in the RBAT and DMCI groups after treatment. Enhanced activation changes were observed in bilateral primary motor cortex (M1) and bilateral supplementary motor area (SMA) after RBAT. Dynamic causal model analysis revealed that interhemispheric connections were enhanced in RBAT patients. These preliminary findings suggest that intracortical and intercortical coupling might underlie poststroke RBAT.

Original languageEnglish
Pages (from-to)416-425
Number of pages10
JournalNeurocase
Volume22
Issue number5
DOIs
StatePublished - 2 Sep 2016

Keywords

  • Bilateral arm training
  • dynamic causal model (DCM)
  • neuroplasticity
  • robot
  • stroke

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