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Translating Principles of Neural Plasticity Into Research on Speech Motor Control Recovery and Rehabilitation

Jeannette Hoit
University of Arizona, Tucson

Raymond Kent
University of Wisconsin, Madison

Lorraine O. Ramig
University of Colorado, Boulder

Rahul Shrivastav
University of Florida, Gainesville

Edythe Strand
Mayo Clinic, Rochester, MI

Kathryn Yorkston
University of Washington, Seattle

Christine M. Sapienza
University of Florida, Gainesville

Contact author: Christy L. Ludlow, 10 Center Drive MSC 1416, Bldg. 10, Rm. 5D-38, Bethesda, MD 20892-1416. E-mail: ludlowc{at}ninds.nih.gov.

Purpose: To review the principles of neural plasticity and make recommendations for research on the neural bases for rehabilitation of neurogenic speech disorders.

Method: A working group in speech motor control and disorders developed this report, which examines the potential relevance of basic research on the brain mechanisms involved in neural plasticity and discusses possible similarities and differences for application to speech motor control disorders. The possible involvement of neural plasticity in changes in speech production in normalcy, development, aging, and neurological diseases and disorders was considered. This report focuses on the appropriate use of functional and structural neuroimaging and the design of feasibility studies aimed at understanding how brain mechanisms are altered by environmental manipulations such as training and stimulation and how these changes might enhance the future development of rehabilitative methods for persons with speech motor control disorders.

Conclusions: Increased collaboration with neuroscientists working in clinical research centers addressing human communication disorders might foster research in this area. It is hoped that this article will encourage future research on speech motor control disorders to address the principles of neural plasticity and their application for rehabilitation.

KEY WORDS: brain imaging, brain reorganization, dysarthria, dyspraxia, dysphonia

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