This study explored the ability of left hemisphere damaged (LHD) nonfluent aphasics, right hemisphere damaged (RHD) patients, and normal speakers to produce acoustic correlates of linguistic prosody. Productions of phonemic stress contrasts (e.g., black$ prime$board vs. black board$ prime$) and contrastive stress tokens (e.g., The man took the bus), were elicited and subjected to acoustic analyses. Results indicated that RHD and LHD groups resembled normal speakers in the use of fundamental frequency and amplitude to encode stress, indicating preserved abilities in both neurological populations. However, the LHD aphasic subjects demonstrated patterns of durational alterations that were statistically different from those obtained for the control and RHD groups. The data are indicative of a basic impairment in speech timing subsequent to LHD. Results are discussed in relation to current theories regarding the neurological basis of linguistic prosody.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.56630 |
| Date | January 1992 |
| Creators | Ouellette, Gene Paul |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (School of Human Communication Disorders.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001307888, proquestno: AAIMM80399, Theses scanned by UMI/ProQuest. |
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