The present work proposes automatic methods for determining the extent of dysphonia in patients with spasmodic dysphonia. Spasmodic dysphonia is a disorder of the larynx which involves involuntary contractions of the vocal folds during speech production. Numerous acoustical aspects of a voiced spasmodic speech signal which indicate the presence of these vocal spasms have been identified, includ...

The term spasmodic dysphonia is a recent one, suggested by Aronson et al. (1968b), as a replacement for the term spastic dysphonia. The new term was advocated because "the term spastic is commonly used to imply disease of ... pyramidal pathways", while the neurological evidence in the Aronson research concerned the extrapyramidal system. Further, Aronson et al. observed that "the strained voice...

UNLABELLED Impact in vocal quality in partial myectomy and neurectomy endoscopic of thyroarytenoid muscle in patients with adductor spasmodic dysphonia the adductor spasmodic dysphonia is a severe vocal disorder characterized by muscle laryngeal spasms during speech, producing phonatory breaks, forced, strained and strangled voice. Its symptoms come from involuntary and intermittent contraction...

Those regions which have been implicated by experimental and clinical neuropathological studies in the pathogenesis of spasmodic torticollis were examined in detail in the present patient and no histological abnormalities found. In the light of marked species differences in the effects of certain brain lesions on posture and the findings reported here, the pathogenesis of spasmodic torticollis ...

Spasmodic dysphonia is a disabling voice condition caused by a chronic neurological disorder of central motor processing. Present therapy is directed at relief of symptoms rather than cure. Botulinum toxin type A injection into the thyroarytenoid muscle has become the pre-eminent approach for treatment of adductor spasmodic dysphonia. Botulinum toxin A injections can be performed in an out-pati...

Spasmodic dysphonia is defined as a focal laryngeal disorder characterized by dystonic spasms of the vocal cord during speech. We described a case of a 22-year-old male patient who presented complaining of idiopathic difficulty swallowing that suddenly developed 6 months ago. The patient also reported pharyngolaryngeal pain, throat discomfort, dyspnea, and voice change. Because laryngoscopy fou...

Adductory spasmodic dysphonia is a focal dystonia of laryngeal muscles. Patients with this disorder typically have severe vocal difficulties, with significant functional, social, and emotional consequences. There is no widely accepted cure for this condition, however, botulinum toxin injections of the thyroarytenoid muscles are considered by most voice clinicians to be the state of the art trea...