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Publication Detail
Modulation of brain plasticity in stroke: a novel model for neurorehabilitation.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Di Pino G, Pellegrino G, Assenza G, Capone F, Ferreri F, Formica D, Ranieri F, Tombini M, Ziemann U, Rothwell JC, Di Lazzaro V
  • Publication date:
    10/2014
  • Pagination:
    597, 608
  • Journal:
    Nat Rev Neurol
  • Volume:
    10
  • Issue:
    10
  • Status:
    Published
  • Country:
    England
  • PII:
    nrneurol.2014.162
  • Language:
    eng
  • Keywords:
    Brain, Humans, Models, Theoretical, Neuronal Plasticity, Recovery of Function, Stroke, Stroke Rehabilitation, Transcranial Direct Current Stimulation, Transcranial Magnetic Stimulation
Abstract
Noninvasive brain stimulation (NIBS) techniques can be used to monitor and modulate the excitability of intracortical neuronal circuits. Long periods of cortical stimulation can produce lasting effects on brain function, paving the way for therapeutic applications of NIBS in chronic neurological disease. The potential of NIBS in stroke rehabilitation has been of particular interest, because stroke is the main cause of permanent disability in industrial nations, and treatment outcomes often fail to meet the expectations of patients. Despite promising reports from many clinical trials on NIBS for stroke recovery, the number of studies reporting a null effect remains a concern. One possible explanation is that the interhemispheric competition model--which posits that suppressing the excitability of the hemisphere not affected by stroke will enhance recovery by reducing interhemispheric inhibition of the stroke hemisphere, and forms the rationale for many studies--is oversimplified or even incorrect. Here, we critically review the proposed mechanisms of synaptic and functional reorganization after stroke, and suggest a bimodal balance-recovery model that links interhemispheric balancing and functional recovery to the structural reserve spared by the lesion. The proposed model could enable NIBS to be tailored to the needs of individual patients.
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