A Cognitive Psychometric Investigation of Word Production and Phonological Error Rates in Logopenic Progressive Aphasia
| العنوان: | A Cognitive Psychometric Investigation of Word Production and Phonological Error Rates in Logopenic Progressive Aphasia |
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| المؤلفون: | Grant M. Walker, Keith A. Josephs, Diana Petroi, Gregory Hickok, Joseph R. Duffy |
| المصدر: | Am J Speech Lang Pathol |
| بيانات النشر: | American Speech Language Hearing Association, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Linguistics and Language, Psychometrics, Logopenic progressive aphasia, 05 social sciences, Bayes Theorem, Cognition, medicine.disease, 050105 experimental psychology, 03 medical and health sciences, Speech and Hearing, Aphasia, Primary Progressive, 0302 clinical medicine, Otorhinolaryngology, Aphasia, Developmental and Educational Psychology, medicine, Humans, 0501 psychology and cognitive sciences, Psychology, 030217 neurology & neurosurgery, Generative grammar, Research Notes, Word production, Cognitive psychology |
| الوصف: | Purpose This study investigated the relationship between word production rates (WPRs) and phonological error rates (PERs) in generative and responsive tasks in logopenic progressive aphasia (lvPPA). We examined whether a portion of the reduced WPR during generative tasks related directly to phonological impairments affecting PER on all tasks, irrespective of other task differences that contributed to WPR. Method Two cognitive psychometric models were hypothesized and fit to the total number of words produced and the number of phonological errors produced by 22 participants on 10 tasks. Bayesian inference was used to construct posterior distributions of participant ability and task difficulty parameters. Model fit statistics were compared. Association strengths for average generative WPR and average responsive PER were also evaluated with linear least-squares regression. Results Average generative WPR and average responsive PER were significantly associated ( r = −.77, p = .00002). A cognitive psychometric model that assumed reduced WPR on generative tasks reflects a portion of general phonological impairment yielded better fit than a model that ignored performance differences between generative and responsive tasks. Generative fluency tasks that elicited few phonological errors still reflected phonological impairment, via suppression. Individual participants were estimated to suppress between 62% and 93% of phonological errors on generative tasks that would have emerged on responsive tasks. Conclusions Suppression of phonological errors may present as decreased WPR on generative tasks in lvPPA. Failure to account for this suppression tendency may lead to overestimation of phonological ability. The findings indicate the need to account for task demands in assessing lvPPA. |
| تدمد: | 1558-9110 1058-0360 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20b32d7c5dca667346d678919865f1ac https://doi.org/10.1044/2021_ajslp-20-00221 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....20b32d7c5dca667346d678919865f1ac |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15589110 10580360 |
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