https://scholars.lib.ntu.edu.tw/handle/123456789/316194
Title: | The effect of reduced vowel working space on speech intelligibility in Mandarin-speaking young adults with cerebral palsy | Authors: | Liu, Huei-Mei FENG-MING TSAO Tsao, Feng-Ming Kuhl, Patricia K. |
Issue Date: | 2005 | Journal Volume: | 117 | Journal Issue: | 6 | Start page/Pages: | 3879-3889 | Source: | Journal of the Acoustical Society of America | Abstract: | The purpose of this study was to examine the effect of reduced vowel working space on dysarthric talkers' speech intelligibility using both acoustic and perceptual approaches. In experiment 1, the acoustic-perceptual relationship between vowel working space area and speech intelligibility was examined in Mandarin-speaking young adults with cerebral palsy. Subjects read aloud 18 bisyllabic words containing the vowels /i/, /a/, and /u/ using their normal speaking rate. Each talker's words were identified by three normal listeners. The percentage of correct vowel and word identification were calculated as vowel intelligibility and word intelligibility, respectively. Results revealed that talkers with cerebral palsy exhibited smaller vowel working space areas compared to ten age-matched controls. The vowel working space area was significantly correlated with vowel intelligibility r = 0.632, p < 0.005) and with word intelligibility (r = 0.684, p < 0.005). Experiment 2 examined whether tokens of expanded vowel working spaces were perceived as better vowel exemplars and represented with greater perceptual spaces than tokens of reduced vowel working spaces. The results of the perceptual experiment support this prediction. The distorted vowels of talkers with cerebral palsy compose a smaller acoustic space that results in shrunken intervowel perceptual distances for listeners. ? 2005 Acoustical Society of America. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-20444393460&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/316194 |
DOI: | 10.1121/1.1898623 | SDG/Keyword: | Audition; Physiology; Speech analysis; Speech communication; Speech processing; Speech recognition; Bisyllabic words; Cerebral palsy; Dysarthric talkers; Reduced vowel working space; Speech intelligibility; adolescent; adult; article; auditory discrimination; cerebral palsy; clinical article; correlation analysis; depth perception; disease classification; disease severity; dysarthria; human; male; phonetics; priority journal; speech intelligibility; vowel; word recognition; Adolescent; Adult; Cerebral Palsy; Dysarthria; Humans; Language; Male; Phonetics; Reference Values; Speech Intelligibility; Speech Perception |
Appears in Collections: | 心理學系 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.