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Age-related Decline in Case-Marker Processing and its Relation to Working Memory Capacity
- Age-related Decline in Case-Marker Processing and its Relation to Working Memory Capacity
- Sung J.E.
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- The journals of gerontology. Series B, Psychological sciences and social sciences
- The journals of gerontology. Series B, Psychological sciences and social sciences vol. 72, no. 5, pp. 813 - 820
- Aging; Canonicity of word order; Case-marker processing; Syntactic complexity; Working memory capacity
- SCIE; SSCI; SCOPUS
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- Objectives: Purposes of the current study were to investigate whether age-related decline emerged in a case-marker assignment task (CMAT) and to explore the relationship between working-memory (WM) capacity and case-marker processing.Method: A total of 121 individuals participated in the study with 62 younger adults and 59 elderly adults. All were administered a CMAT that consisted of active and passive constructions with canonical and noncanonical word-order conditions. A composite measure of WM tasks served as an index of participants' WM capacity.Results: The older group performed worse than the younger group, and the noncanonical word order elicited worse performance than the canonical condition. The older group demonstrated greater difficulty in case-marker processing under the canonical condition and passive construction. Regression results revealed that age, education, and sentence type were the best predictors to account for performance on the CMAT.Discussion: The canonicity of word order and passive construction were critical factors related to decline in abilities in a case-marker assignment. The combination of age, education, and sentence type factors accounted for overall performance on case-marker processing. Results indicated the crucial necessity to find a cognitively and linguistically demanding condition that elicits aging effects most efficiently, considering language-specific syntactic features.
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