Spasmodic dysphonia (SD), a focal form of dystonia, is a neurological voice disorder that involves involuntary "spasms" of the vocal cords causing interruptions of speech and affecting the voice quality. SD can cause the voice to break up or to have a tight, strained, or strangled quality.
To listen to audio examples of Abductor Spasmodic Dysphonia or Adductor Spasmodic Dysphonia through RealPlayer click one of the links below.
Adductor Spasmodic Dysphonia
Abductor Spasmodic Dysphonia
Latest News:
- NIH Funds Focal Dystonia Research read more
- NSDA Funds First Independent Research Grant read more
- The Congressionally Directed Medical Research Program Adds Dystonia to the List read more
- Brainstem Pathology in Spasmodic Dysphonia
read more
Resources: Download the Botulinum Injection Tracking Chart
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