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Investigating orthography-phonology and orthography-semantics pathways with implications for compensatory mechanisms in reading disorder in the context of a randomized control trial

Award Number: F32HD106739
ORGANIZATION: NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

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Investigating orthography-phonology and orthography-semantics pathways with implications for compensatory mechanisms in reading disorder in the context of a randomized control trial - Project Summary/Abstract Decoding-based reading disorder (RD, also known as dyslexia), a neurodevelopmental disorder with difficulties in reading and spelling, affects approximately 3-10% of all children. Because RD leads to negative consequences beyond academic achievement such as poor mental health outcomes, identifying effective reading interventions is a high priority for researchers and educators. Currently, evidence-based multi-componential interventions that explicitly and systematically target phonics (PHON, focused on letter-sound matching) are considered most effective for remediating RD. However, up to 30% of RD children continue to struggle, warranting broader examination of interventions that goes beyond PHON. Emerging research suggests that morphology-based intervention (MORPH, focused on the understanding and identification of the structure of a word, such as word bases, prefixes, and affixes) may serve as an alternative and complementary strategy. This proposed project, leveraging a funded reading intervention program, will examine event-related potential (ERP)-based neural signals in relation to responsiveness to interventions (RTI) by drawing insights from a computational model of reading (i.e., the connectionist triangle model). Based on this model, we predict that PHON intervention primarily targets the orthography-phonology [O-P] pathway, and MORPH intervention primarily targets the orthography- semantics [O-S] pathway. We also predict that MORPH intervention promotes greater reading improvements for individuals who primarily rely on O-S (possibly compensatory) mechanisms to overcome their weakness in phonological processing. Specifically, this longitudinal project aims to address (1) whether children with RD who have enhanced O-S processes at baseline are more responsive to PHON and MORPH interventions, and whether such responsiveness will be greater if the approach emphasizes both O-S and O-P pathways as compared to the O-P pathway alone; (2) whether the MORPH intervention strengthens the representation of O- P and O-S pathways. We will examine ERP-based neural signals from a lexical task, collected 4 times over the course of 5-week intensive interventions (MORPH, PHON, Executive function [EF], and Math interventions). We will use machine learning and an individual difference approach to assess O-P and O-S neural signals and their trajectories over the course of intervention, and to understand the relationship between these neural signals and children’s RTI. This proposal will help us better understand factors that predict children’s RTI, and the mechanism of different reading interventions. This fellowship will provide crucial research and professional training opportunities to become an independent translational researcher. This includes gaining experience in designing and conducting randomized controlled trials (RCTs), and methodological training in EEG/ERP including machine learning and multilevel mixed modeling analytical techniques. This proposal also addresses her goal of generating scientific knowledge that can help better identify and intervene children with RD.


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: 2024 ( Subtotal = -$1,792 )
2024	2023	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	001	2	8/22/2024	NON-COMPETING CONTINUATION	$0
2024	2023	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	000	2	12/15/2023	NON-COMPETING CONTINUATION	-$1,792
														Subtotal = -$1,792

Issue Date FY: 2023 ( Subtotal = $72,000 )
2023	2023	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	001	2	2/22/2023	NON-COMPETING CONTINUATION	$3,110
2023	2023	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	000	2	11/15/2022	NON-COMPETING CONTINUATION	$68,890
														Subtotal = $72,000

Issue Date FY: 2022 ( Subtotal = $2,500 )
2022	2022	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	003	1	3/12/2022	SUPPLEMENT FOR EXPANSION	$2,500
2022	2022	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	000	1	2/10/2022	SUPPLEMENT FOR EXPANSION	$2,500
2022	2022	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	001	1	2/12/2022	SUPPLEMENT FOR EXPANSION	-$2,500
2022	2021	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	002	1	2/14/2022	NEW	$0
														Subtotal = $2,500

Issue Date FY: 2021 ( Subtotal = $65,994 )
2021	2021	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	001	1	9/18/2021	NEW	$0
2021	2021	UNIVERSITY OF CONNECTICUT	438 WHITNEY RD EXTENSION UNIT 1133	STORRS	CT	06269	CAPITOL	USA	Child Health and Human Development Extramural Research	000	1	9/18/2021	NEW	$65,994
														Subtotal = $65,994

Grand Total All Awards = $138,702

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Investigating orthography-phonology and orthography-semantics pathways with implications for compensatory mechanisms in reading disorder in the context of a randomized control trial

Award Number: F32HD106739

ORGANIZATION: NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

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