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Semantic learning deficits in school age children with developmental language disorder

Award Number: R21DC018865
ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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Project Summary Semantic knowledge, or knowledge of a word’s meaning, has strong ties to reading comprehension and long- term academic outcomes, particularly in the school years. Children with developmental language disorder (DLD), language impairment in the absence of any causal factors, often show deficits in semantic knowledge and acquisition. It is generally accepted that these deficits are driven by difficulty with the process of adding meaning to a new word with repeated exposures to the word, or configuration. What is unknown is what underlies deficits in configuration and whether these deficits vary across the DLD profile. The goal of this project is to elucidate the semantic learning deficits in DLD. Toward this goal, this project uses a combined electroencephalogram (EEG) - behavioral methods approach to examine the cognitive and linguistic processes engaged during semantic learning in school-age children with and without DLD. The inclusion of EEG will allow for a real-time examination of semantic learning and associated cognitive and linguistic processes. 10-12 year old children with and without DLD will complete a behavioral assessment battery and semantic learning task while their EEG is collected. Behavioral data will be analyzed for semantic learning group differences (Aim 1) and the types of errors that children make when they are unable to retrieve a correct meaning (Aim 2). EEG data will be analyzed in two ways. The event-related potential (ERP) analysis will examine changes in semantic processing, indexed by the N400, during learning (Aim 1). Time frequency analysis of the EEG will examine the engagement of neural processes associated with lexical retrieval (theta) and attention/inhibition (alpha) during learning (Aim 1). Behavioral and EEG methods will be combined to examine individual differences related to semantic learning outcomes and fine-grained differences in N400 learning effects across groups (Aim 2). Taken together, findings will inform our understanding of the nature of the semantic learning deficits in school-aged children with DLD. This understanding is prerequisite for targeted intervention that would help these children learn how to learn.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2023 ( Subtotal = $0 )
2023	2022	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	000	3	10/12/2022	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2022 ( Subtotal = $224,785 )
2022	2022	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	000	3	8/8/2022	NON-COMPETING CONTINUATION	$150,500
2022	2022	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	001	3	8/9/2022	SUPPLEMENT FOR EXPANSION	$74,285
														Subtotal = $224,785

Issue Date FY: 2021 ( Subtotal = $224,785 )
2021	2021	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	001	2	8/12/2021	SUPPLEMENT FOR EXPANSION	$74,285
2021	2021	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	000	2	8/3/2021	NON-COMPETING CONTINUATION	$150,500
														Subtotal = $224,785

Issue Date FY: 2020 ( Subtotal = $150,500 )
2020	2020	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	001	1	7/25/2020	NEW	$0
2020	2020	SAN DIEGO STATE UNIVERSITY FOUNDATION	5250 CAMPANILE DR MC1947	SAN DIEGO	CA	92182	SAN DIEGO	USA	Research Related to Deafness and Communication Disorders	000	1	6/15/2020	NEW	$150,500
														Subtotal = $150,500

Grand Total All Awards = $600,070

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Semantic learning deficits in school age children with developmental language disorder

Award Number: R21DC018865

ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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