LING 2604 Lecture 10: Voice Disorders - Nov 18, 2015
23 Nov 2015
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Document Summary
Highlights of voice disorders: 3 uses of voice speech, to prevent food from getting into trachea, & to increase exertion ability (overlaid functions) Wide range of studies (6 to 23. 4% in children; 7. 2% in men; 5% in women) In children, increases from 3. 9% in preschoolers to 6 9 % in school-age children) Varies by occupation: teachers, singers, salespeople. Vocal fry = talking at too low of a pitch, hoarseness. Misuse/abuse: nodules, ulcers, bowed vocal cords, most common type of dysphonia, laryngeal cancer (usually due to smoking) Neurogenic: paralysis of vocal cords (damage in vagus, spasmodic dysphonia (movement disorder of vocal cords, vocal tremor (movement disorder, vocal tics (tourette"s syndrome, throat clearing) Misuse = chronically engage in a habit that affects vocal cords. Abuse = e. g. , screaming at a concert. Speaking w/ inadequate breath support (e. g. speaking on residual breath/when out of breath) Abuse: more often an acute condition, most often leads to vocal nodules, polyps & contract ulcers.
