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Modeling Individual Differences in the Temporal Dynamics of Spoken Word Recognition in Autistic Young Adults

Award Number: F31DC022187
ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS
PERIOD OF PERFORMANCE START DATE: 06/15/2024
PERIOD OF PERFORMANCE END DATE: 07/14/2026

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Modeling Individual Differences in the Temporal Dynamics of Spoken Word Recognition in Autistic Young Adults - PROJECT SUMMARY/ABSTRACT Autism spectrum disorder is characterized by impairments in social-emotional reciprocity and restricted behaviors and interests. Language outcomes in autism are heterogenous; impairments in language appear early in development, are associated with poor functional outcomes, and are resistant to treatment. Individual differences in language abilities are associated with language efficiency; decreased efficiency in spoken word recognition contribute to language impairments in autism, though to date the mechanisms are unspecified. Studies of clinical populations suggest two candidate mechanisms: inefficient competition suppression and slowed auditory processing. The proposed predoctoral training and research, which addresses a top NIDCD research priority, will utilize EEG and machine learning to examine individual differences in the temporal and neural dynamics of spoken word recognition in autism, and their relationship to standardized measures of language abilities. Autistic adults ages 18-35 with a wide range of language abilities, and language-matched neurotypical (NT) peers (n = 25 autistic, 25 NT) will complete an EEG/ERP spoken word and nonword recognition design. Computational modeling will employ a support vector machine classification framework using ERP response profiles to decode what word an individual heard. This “decoder” captures individual differences in word recognition precisely and reliably. Analyses will use machine learning to achieve the following Specific Aims and test associated hypotheses: (1) Model group-level ERP responses to words and nonwords in autistic versus NT groups; (2) Test individual decoder accuracy as a predictor of language abilities; and (3) Test decoder accuracy for words embedded in sentences of varying linguistic predictability. The ERP paradigm presents minimal task demands, and is well suited for studies of individuals with language and cognitive impairments. Theoretically driven aims and hypotheses will clarify the role of efficiency in spoken word recognition in language deficits in autism to inform targeted early intervention. Training Plan: The individually tailored training plan dovetails with research activities and includes methodological training in neuroimaging and computational modeling; education in language, autism, cognitive neuroscience, and responsible conduct of research; and professional development in scientific and community settings. Proposed activities include coursework, interdisciplinary mentorship, methodological workshops, professional seminars, community outreach, conference presentations, and manuscript preparation. Environment: The mentorship team has a strong NIH funding record. Univ. of Connecticut is a Research 1 public institution, and the Dept. of Psychological Sciences ranks in the top 10 for U.S. grant funding. UConn boasts a large community of interdisciplinary language sciences researchers and a research-dedicated neuroimaging center that prioritizes graduate training. The application is ideally situated to accomplish the current fellowship proposal.


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: 2026 ( Subtotal = $2,843 )
2026	2026	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Research Related to Deafness and Communication Disorders	000	3	5/26/2026	NON-COMPETING CONTINUATION	$2,843
														Subtotal = $2,843

Issue Date FY: 2025 ( Subtotal = $49,538 )
2025	2025	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Research Related to Deafness and Communication Disorders	000	2	5/20/2025	NON-COMPETING CONTINUATION	$49,538
														Subtotal = $49,538

Issue Date FY: 2024 ( Subtotal = $48,974 )
2024	2024	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Research Related to Deafness and Communication Disorders	000	1	4/4/2024	NEW	$47,694
2024	2024	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Research Related to Deafness and Communication Disorders	001	1	4/25/2024	NEW	$1,280
2024	2024	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Research Related to Deafness and Communication Disorders	002	1	9/4/2024	NEW	$0
														Subtotal = $48,974

Grand Total All Awards = $101,355

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Modeling Individual Differences in the Temporal Dynamics of Spoken Word Recognition in Autistic Young Adults

Award Number: F31DC022187

ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

PERIOD OF PERFORMANCE START DATE: 06/15/2024

PERIOD OF PERFORMANCE END DATE: 07/14/2026

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