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A Concept for Extending the Applicability of Constraint-Induced Movement Therapy through Motor Cortex Activity Feedback Using a Neural Prosthesis

Ward, Tomas and Soraghan , Christopher J and Matthews, Fiachra and Markham, Charles (2007) A Concept for Extending the Applicability of Constraint-Induced Movement Therapy through Motor Cortex Activity Feedback Using a Neural Prosthesis. Computational Intelligence and Neuroscience.

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Abstract

This paper describes a concept for the extension of constraint-induced movement therapy (CIMT) through the use of feedback of primary motor cortex activity. CIMT requires residual movement to act as a source of feedback to the patient, thus preventing its application to those with no perceptible movement. It is proposed in this paper that it is possible to provide feedback of the motor cortex effort to the patient bymeasurement with near infrared spectroscopy (NIRS). Significant changes in such effortmay be used to drive rehabilitative robotic actuators, for example. This may provide a possible avenue for extending CIMT to patients hitherto excluded as a result of severity of condition. In support of such a paradigm, this paper details the current status of CIMT and related attempts to extend rehabilitation therapy through the application of technology. An introduction to the relevant haemodynamics is given including a description of the basic technology behind a suitable NIRS system. An illustration of the proposed therapy is described using a simple NIRS system driving a robotic arm during simple upper-limb unilateral isometric contraction exercises with healthy subjects.

Item Type: Article
Keywords: Constraint-Induced Movement Therapy; Motor Cortex; Activity Feedback; Neural Prosthesis;
Subjects: Science & Engineering > Electronic Engineering
Item ID: 1266
Depositing User: Dr Tomas Ward
Date Deposited: 26 Feb 2009 15:45
Journal or Publication Title: Computational Intelligence and Neuroscience
Publisher: Hindawi Publishing Corporation
Refereed: Yes
URI:

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