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Age-related changes in sentence production abilities and their relation to working- memory capacity: Evidence from a verb- final language

Title
Age-related changes in sentence production abilities and their relation to working- memory capacity: Evidence from a verb- final language
Authors
Sung J.E.
Ewha Authors
성지은
SCOPUS Author ID
성지은scopus
Issue Date
2015
Journal Title
PLoS ONE
ISSN
1932-6203JCR Link
Citation
vol. 10, no. 4
Publisher
Public Library of Science
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Objectives This study investigated the best predictor to capture age-related changes in passive-sentence production using a constrained sentence-production paradigm and explored the role of working-memory capacity in relation to the task demands of the sentence-production tasks. Methods A total of 60 participants participated in the study ranging in age from 21 to 86. All were administered a syntactic-priming and a sentence-completion task under either canonical or noncanonical word-order conditions. Results Age was significantly and negatively correlated with sentence-production tasks, and the most demanding condition with a noncanonical word order under the syntactic priming paradigm was the best predictor of aging. Working-memory capacity was significantly and positively correlated with all conditions, but the significant correlation remained only for the most demanding condition (the priming task with a noncanonical word order) after controlling for age. Discussion Sentence-production abilities were vulnerable to aging, and these effects manifested most clearly when the task demands were high enough to tax individuals' cognitive capacity. Working-memory capacity partially accounted for age-related changes in sentence-production abilities. ©2015 Jee Eun Sung.
DOI
10.1371/journal.pone.0119424
Appears in Collections:
사범대학 > 언어병리학과 > Journal papers
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