Spasmodic Dysphonia
(a voice disorder in which momentary interruption of phonation results from sudden overadduction of the vocal folds. It is sometimes referred to as "laryngeal stuttering.")
- Spasmodic Dysphonia? for the National Institute on Deafness and Com
- Several samples of various diagnoses of spasmodic dysphonia YouTube from The National Spasmodic Dysphonia Association
- Neurological Concomitants in Spasmodic Dysphonia a student project by Lynn Dee Harrelson.