Skip to main content
Article thumbnail
Location of Repository

Effect of Remote Sensory Noise on Hand Function Post Stroke

By Na Jin J Seo, Na Jin J Seo, Marcella eKosmopoulos, Leah R Enders and Pilwon eHur and Pilwon eHur


Hand motor impairment persists after stroke. Sensory inputs may facilitate recovery of motor function. This pilot study tested the effectiveness of tactile sensory noise in improving hand motor function in chronic stroke survivors with tactile sensory deficits, using a repeated measures design. Sensory noise in the form of subthreshold, white noise, mechanical vibration was applied to the wrist skin during motor tasks. Hand dexterity assessed by the Nine Hole Peg Test and the Box and Block Test and pinch strength significantly improved when the sensory noise was turned on compared with when it was turned off in chronic stroke survivors. The subthreshold sensory noise to the wrist appears to induce improvements in hand motor function possibly via neuronal connections in the sensoriomotor cortex. The approach of applying concomitant, unperceivable mechanical vibration to the wrist during hand motor tasks is easily adoptable for clinic use as well as unsupervised home use. This pilot study suggests a potential for a wristband-type assistive device to complement hand rehabilitation for stroke survivors with sensorimotor deficit

Topics: stochastic resonance, sensory stimulation, hand function, sensory noise, stroke hand rehabilitation, tactile sensation
Publisher: Frontiers Media S.A.
Year: 2014
DOI identifier: 10.3389/fnhum.2014.00934
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.