title: A sensory feedback system utilizing cutaneous electrical stimulation for stroke patients with sensory loss.
abstract: Sensory disturbance is very common following stroke and may exacerbate a patient's functional impairment, even if the patient has good motor function. For instance, patients with sensory disturbances will often grip an object with excessive or underestimated pinch pressure, because they do not receive the appropriate sensory feedback and must rely only on visual feedback. In this study, we developed a sensory feedback system that used cutaneous electrical stimulation for patients with sensory loss. In the system, electrical stimulation is modulated by the strength of pinch pressure and the patients are able to identify their fingertip pinch pressure. To evaluate the efficacy of the system, a clinical case study was conducted in a stroke patient with severe sensory loss. The fluctuation in force control during grasping was gradually decreased as the training progressed and the patient was able to maintain a stable pinch pressure during grasping even without the system following 2 months of intervention. We conclude that the system described in this study may be a useful contribution towards the rehabilitation of patients with sensory loss.
authors.affiliation: Department of Motor Control and Rehabilitation, ATR Computational Neuroscience Laboratories, Kyoto, Japan. kita@atr.jp
authors.forename: Kahori
authors.initials: K
authors.lastname: Kita
authors.forename: Kotaro
authors.initials: K
authors.lastname: Takeda
authors.forename: Rieko
authors.initials: R
authors.lastname: Osu
authors.forename: Junichi
authors.initials: J
authors.lastname: Ushiba
authors.forename: Sachiko
authors.initials: S
authors.lastname: Sakata
authors.forename: Yohei
authors.initials: Y
authors.lastname: Otaka
mesh_terms: D004558:Electric Stimulation / Q000295:instrumentation* / Q000379:methods*; D056228:Feedback, Sensory / Q000502:physiology*; D006801:Humans; D012867:Skin / Q000378:metabolism; D000071939:Stroke Rehabilitation