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Learning, Retention, and Slacking: A Model of the Dynamics of Recovery in Robot Therapy

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2 Author(s)
Casadio, M. ; Rehabilitation Inst. of Chicago, Chicago, IL, USA ; Sanguineti, V.

Quantitative descriptions of the process of recovery of motor functions in impaired subjects during robot-assisted exercise might help to understand how to use these devices to make recovery faster and more effective. Linear dynamical models have been used to describe the dynamics of sensorimotor adaptation. Here, we extend this formalism to characterize the neuromotor recovery process. We focus on a robot therapy experiment that involved chronic stroke survivors, based on a robot-assisted arm extension task. The results suggest that modeling the recovery process with dynamical models is feasible, and could allow predicting the long-term outcome of a robot-assisted rehabilitation treatment.

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Neural Systems and Rehabilitation Engineering, IEEE Transactions on  (Volume:20 ,  Issue: 3 )