Acoustic reflex characteristics in spastic dysphonia.
Acoustic reflex characteristics were studied in six persons with spastic dysphonia. Two methods of analysis were used: (1) a double-blind qualitative judgment of acoustic reflex recordings, and (2) a quantitative analysis of specific temporal characteristics of the acoustic reflexes. Judgments of reflex recordings did not reliably differentiate spastic dysphonia subjects from controls. An analysis of five latency measures revealed a difference between groups only in one measure, reflex contraction time.
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D004432:Ear, Middle / Q000503:physiopathology*; D005260:Female; D006309:Hearing; D006801:Humans; D007600:Judgment; D008297:Male; D008875:Middle Aged; D012018:Reflex; D013064:Speech Disorders / Q000503:physiopathology*; D014831:Voice