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Published on: April 12, 2018
Lexical-semantic organization in children with specific language impairment
1University of Iowa, Iowa City, USA. li.sheng@mail.utexas.edu
Children with specific language impairment (SLI) show weaker lexical-semantic organization compared to peers. These language deficits are linked to vocabulary size and may indicate word-finding difficulties in some children with SLI.
Area of Science:
- Linguistics
- Developmental Psychology
- Speech-Language Pathology
Background:
- Specific language impairment (SLI) affects language acquisition in children.
- Lexical-semantic organization is crucial for vocabulary development and retrieval.
- Understanding these deficits is key to targeted interventions.
Purpose of the Study:
- To investigate lexical-semantic organization deficits in children with SLI.
- To assess if these deficits correlate with vocabulary size.
- To determine the prevalence of these deficits within the SLI population.
Main Methods:
- Fourteen children with SLI, 14 age-matched (AM) peers, and 14 vocabulary-matched (VM) peers participated.
- Participants generated word associations to 48 target words.
- Associations were categorized as semantic, clang, or erroneous.
Main Results:
- Children with SLI produced fewer semantic associations and more errors than AM peers.
- Compared to VM peers, SLI children showed fewer semantic responses and more errors.
- Poor semantic performance in SLI was linked to expressive vocabulary deficits and a receptive-expressive gap.
Conclusions:
- Lexical-semantic organization skills vary significantly among children with SLI.
- A subset of children with SLI exhibits lexical-semantic deficits, potentially related to word-finding issues.
- These findings highlight the heterogeneity of language impairments in SLI.
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