title: An exploratory study of an undefined acquired neuromotor speech disorder within the context of the four level framework for speech sensorimotor control.
abstract: In this study, the speech of a 28-year-old male with acquired brain injury and who presents with an undefined neuromotor speech disorder which cannot be categorised as either apraxia of speech or dysarthria, is described. Voice onset time, vowel duration, utterance duration and vowel formant analyses were done acoustically. A perceptual analysis and intelligibility rating were also executed. The subject was found to present with unique perceptual symptoms, intelligible speech, prolonged sound duration and distorted vowel quality. The results are interpreted within the context of the Four Level Framework of Speech Sensorimotor Control (Van der Merwe, 1997).
authors.affiliation: Department of Communication Pathology, University of Pretoria.
authors.forename: D
authors.initials: D
authors.lastname: Schmulian
authors.forename: A
authors.initials: A
authors.lastname: van der Merwe
authors.forename: E
authors.initials: E
authors.lastname: Groenewald
mesh_terms: D000328:Adult; D001930:Brain Injuries / Q000150:complications*; D006801:Humans; D008297:Male; D013061:Speech Acoustics; D013064:Speech Disorders / Q000145:classification / Q000175:diagnosis / Q000503:physiopathology*; D013065:Speech Intelligibility; D013067:Speech Perception; D014831:Voice