David S Chung1, Chelsea Wettroth1, Mark Hallett1, Carine W Maurer1,2. 1. Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke National Institutes of Health Bethesda MD. 2. Department of Neurology Stony Brook University School of Medicine Stony Brook NY.
Abstract
BACKGROUND: Functional disorders of speech and voice, subtypes of functional movement disorders, represent abnormalities in speech and voice that are thought to have an underlying psychological cause. These disorders exhibit several positive and negative features that distinguish them from organic disorders. METHODS AND RESULTS: We describe the clinical manifestations of functional disorders of speech and voice, and illustrate these features using six clinical cases. CONCLUSIONS: Functional disorders of speech and voice may manifest in a variety of ways, including dysphonia, stuttering, or prosodic abnormalities. Given that these disorders have been understudied and may resemble organic disorders, diagnosis may be challenging. Appropriate treatment may be quite effective, highlighting the importance of prompt and accurate diagnosis.
BACKGROUND: Functional disorders of speech and voice, subtypes of functional movement disorders, represent abnormalities in speech and voice that are thought to have an underlying psychological cause. These disorders exhibit several positive and negative features that distinguish them from organic disorders. METHODS AND RESULTS: We describe the clinical manifestations of functional disorders of speech and voice, and illustrate these features using six clinical cases. CONCLUSIONS: Functional disorders of speech and voice may manifest in a variety of ways, including dysphonia, stuttering, or prosodic abnormalities. Given that these disorders have been understudied and may resemble organic disorders, diagnosis may be challenging. Appropriate treatment may be quite effective, highlighting the importance of prompt and accurate diagnosis.
Entities:
Keywords:
functional movement disorders; functional neurological disorder; functional speech disorder; psychogenic movement disorders; psychogenic speech disorder
Authors: D G Vossler; A M Haltiner; S K Schepp; P A Friel; L M Caylor; J D Morgan; M J Doherty Journal: Neurology Date: 2004-08-10 Impact factor: 9.910