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Verbs and their thematic role processing abilities for people with aphasia

Title
Verbs and their thematic role processing abilities for people with aphasia
Authors
Jeong K.H.Sung J.E.
Ewha Authors
성지은
SCOPUS Author ID
성지은scopus
Issue Date
2018
Journal Title
Communication Sciences and Disorders
ISSN
2288-1328JCR Link
Citation
Communication Sciences and Disorders vol. 23, no. 2, pp. 337 - 346
Keywords
AphasiaThematic roleVerb
Publisher
Korean Academy of Speech-Language Pathology and Audiology
Indexed
SCOPUS scopus
Document Type
Article
Abstract
Objectives: The purpose of this study was to investigate the ability of people with aphasia (PWA) to process verbs and their thematic roles. We further examined the relationship between verb-related processing abilities and aphasia severity. Methods: Fifteen individuals with aphasia and 15 age- and education-matched normal individuals participated in the study. Experiment conditions consisted of thematic role-selection tasks (agent-selection vs. theme-selection) and verb-selection tasks when the two thematic roles were provided. Participants were asked to select the target among 3 choices. Results: PWA performed significantly worse in all conditions than normal elderly adults (NEA). Both groups performed worse on the agent-selection than theme-selection tasks. The group by thematic-role type interaction was significant, indicating that PWA demonstrated differentially greater difficulties in the agent-selection than theme-selection task compared to the NEA group. The verb-selection task was highly correlated with overall aphasia severity and verbal output measures from the standardized aphasia battery. Conclusion: These results indicated that PWA demonstrated deficits in selecting thematic roles associated with the verbs and choosing the verbs when the thematic roles were provided. Greater difficulties in the agent-selection than theme-selection task in both groups are likely due to the pro-drop phenomena, usually associated with the subject-deletion features in Korean. Overall high correlations of verb-selection task with aphasia severity and verbal output measures indicate that the verb-selection task may be a clinically useful method to evaluate word retrieval process deficits in PWA without using an overt naming task. © 2018 Korean Academy of Speech-Language Pathology and Audiology.
DOI
10.12963/csd.18485
Appears in Collections:
사범대학 > 언어병리학과 > Journal papers
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