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Fergadiotis, Gerasimos (2)
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Hits 1 – 2 of 2
1
Modelling Confrontation Naming and Discourse Performance in Aphasia
Fergadiotis, Gerasimos
;
Harris Wright, Heather
In: Speech and Hearing Sciences Faculty Publications and Presentations (2016)
Abstract:
Aims: The main goals of the study were to investigate the extent to which confrontation naming test (CNT) scores are predictive of (i) the proportion of paraphasias in connect speech, and (ii) the amount of information PWA can effectively communicate. Methods & Procedures: Data from 98 monolingual PWA were retrieved from AphasiaBank and analysed using structural equation modelling. Performance in CNTs was modelled as a latent variable based on the Boston Naming Test, the Western Aphasia Battery–R Naming Subtest, and the Verb Naming Test. Performance at the discourse level was modelled based on the observed proportions of paraphasias in three discourse tasks (free speech, eventcasts, and story retell). Informativeness was quantified using the percentage of Correct Information Units based on story re-tell. Outcomes & Results: For the first question, the regression coefficient between the two latent factors was estimated to be –0.52. When the latent factor based on the CNTs was regressed on informativeness, the estimated regression coefficient was equal to 0.68. Conclusions: Performance on CNTs was not a strong predictor of the proportion of paraphasias produced in connected speech but was substantially higher for the amount of information communicated by PWA. Clinicians are cautioned not to predict a speaker’s performance at the discourse level after establishing CNT performance. Other anomic behaviours (e.g., pauses) during discourse production may be associated with CNT performance and should be considered in future investigations.
URL:
https://pdxscholar.library.pdx.edu/sphr_fac/13
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2
Semantic Knowledge Use in Discourse Produced by Individuals with Anomic Aphasia
Kintz, Stephen
;
Harris Wright, Heather
;
Fergadiotis, Gerasimos
In: Speech and Hearing Sciences Faculty Publications and Presentations (2016)
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