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Processing-Based Factors in Child Language Impairment.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Processing-Based Factors in Child Language Impairment./
作者:	Larson, Caroline.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	257 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-02, Section: B.
Contained By:	Dissertations Abstracts International83-02B.
標題:	Language. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28645660
ISBN:	9798522907709

Processing-Based Factors in Child Language Impairment.
Larson, Caroline.

Processing-Based Factors in Child Language Impairment. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 257 p.

Source: Dissertations Abstracts International, Volume: 83-02, Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2021.

This item must not be sold to any third party vendors.

The current dissertation examined working memory in children with Developmental Language Disorder (DLD). The goal of this work was to integrate three primary processing-based hypotheses of DLD, 1) limited verbal working memory, 2) slowed processing speed, and 3) inefficient inhibition of interference, by using the serial-order-in-a-box-complex span (SOB-CS) computational model as my theoretical framework. I tested the role of domain in working memory performance by varying the domain of interference and recall (i.e., verbal versus nonverbal) task demands, and the relationship between working memory performance and a key time-based mechanism posited by the SOB-CS model, free time. Finally, I examined how individual differences in child factors related to working memory performance. Participants were 55 school-age children, 21 children with DLD and 34 age-matched TD peers (9-13 years). Findings indicated that working memory performance was poorer in the DLD than TD group. There was a modest benefit of dispersing interference and recall task demands across domains relative to task demands being within one domain, yet verbal interference affected performance to a greater degree than nonverbal interference in the DLD group. Second, I demonstrated a link between free time and working memory performance, suggesting that unfilled pauses are beneficial to performance. However, when verbal recall was paired with verbal interference, there appeared to be a detrimental effect of free time for the DLD group, and a facilitative effect of free time for the TD group. This finding may have been related to diminished attention to verbal interference in the DLD group, potentially reflecting a contributing factor in verbal processing difficulty. Finally, the DLD group appeared to recruit language and nonverbal skills adaptively to facilitate working memory performance whereas the TD group appeared to recruit language regardless of whether language facilitated performance. Together, findings support a role for each of the processing-based hypotheses of DLD, albeit an incomplete role. In contrast, the SOB-CS model accounted for interrelationships among these processing-based factors and provided an explanation across patterns of findings in the current work. Thus, the SOB-CS model represents a useful step forward in explaining processing in children with DLD.

ISBN: 9798522907709Subjects--Topical Terms:

643551
Language.
Subjects--Index Terms:

Cognition

Processing-Based Factors in Child Language Impairment.
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