The present study was conducted to examine semantic and phonologically mediated priming in normal and brain-damaged populations. Non-fluent and fluent aphasic patients and age-matched control subjects performed an auditory lexical decision task in three separate experimental subtests: semantic priming (e.g., manner-way), minimally-distinct mediated priming (e.g., nanner-way), and maximally-distinct mediated priming (e.g., zanner-way). Consistent with expectations, the findings revealed semantic priming effects in all groups. Interestingly, contrary to predictions based on previous studies, both non-fluent and fluent aphasic patient groups demonstrated mediated priming in both the minimally-distinct and the maximally-distinct subtests that was comparable to mediated priming effects shown by the normal control subjects. The results are discussed in light of current hypotheses concerning the nature of lexical access impairments in brain-damaged individuals. In addition, implications for models of normal word recognition are considered.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.29901 |
| Date | January 1999 |
| Creators | Hutner, Jennifer S. |
| Contributors | Baum, Shari R. (advisor) |
| 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 Communication Sciences and Disorders.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001683069, proquestno: MQ55069, Theses scanned by UMI/ProQuest. |
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