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Clinical implications of cross-system interactions.
David H McFarland1, Pascale Tremblay
1Ecole d'orthophonie et d'audiologie et centre de recherche en sciences neurologiques, Faculté de médecine, Université de Montréal, Québec, Canada. David.McFarland@umontreal.ca
Seminars in Speech and Language
|November 23, 2006
Summary
Speech and swallowing share neural networks, suggesting a common regulatory system. Understanding these interactions aids in diagnosis and treatment for related motor impairments.
Area of Science:
- Neuroscience
- Speech-Language Pathology
- Motor Control
Background:
- Swallowing and speech production are complex motor behaviors.
- Existing research suggests potential overlap in their neural control.
- Clinical observations indicate shared vulnerabilities and treatment responses.
Purpose of the Study:
- To review evidence for cross-system interactions between speech and swallowing.
- To propose a shared neural network hypothesis for these functions.
- To highlight the clinical relevance of this linkage for diagnosis and therapy.
Main Methods:
- Review of neuroimaging studies.
- Analysis of common clinical impairments.
- Examination of cross-system treatment effects.
- Consideration of developmental trajectories.
Main Results:
- Neuroimaging data support a shared neural network for speech and swallowing.
- Clinical impairments often co-occur, suggesting linked pathophysiology.
- Therapeutic interventions targeting one system can impact the other.
Conclusions:
- Speech and swallowing are likely regulated by a common, adaptable neural network.
- Viewing these functions as interconnected offers clinical diagnostic and therapeutic advantages.
- Further research is needed to elucidate distinct and shared neural substrates and optimize intervention strategies.
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