Abductory spasmodic dysphonia (AB-SD)

A benign neurological voice disorder caused by laryngeal [intlink id=”148″ type=”post”]dystonia[/intlink]. Abductory SD interferes with smooth flow of the voice as follows: During running speech, the voice intermittently drops out to a whisper. AB-SD is also called intermittent whisper phonation, and comprises about 10% of all cases of [intlink id=”512″ type=”post”]spasmodic dysphonia[/intlink]. See also [intlink id=”575″ type=”post”]tonic variant spasmodic dysphonia[/intlink].

Posted in Glossary.

Leave a Reply

Your email address will not be published. Required fields are marked *