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Examining Effort-Based Reward Processing and Lifetime Stress in Relation to Depression during Adolescence

Award Number: F32MH125504
ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS
PERIOD OF PERFORMANCE START DATE: 08/01/2021
PERIOD OF PERFORMANCE END DATE: 09/01/2022

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Examining Effort-Based Reward Processing and Lifetime Stress in Relation to Depression during Adolescence - PROJECT SUMMARY/ABSTRACT Adolescence is a developmental period characterized by increased reward responsivity; it also reflects a high- risk period for the emergence of depression. Adolescence represents an ideal time to identify risk factors and refine the specificity of models of the development and pathophysiology of depression. Most research elucidating the role of reward processing during development and depression has studied reward liking, as indexed by the reward positivity (RewP) event-related brain potential (ERP); however, previous work indicates that reward processing may be better conceptualized in terms of multiple aspects beyond liking, including wanting—a process also impaired in depression. Using a novel effort-reward task developed by our group, the primary goal the research is to determine the impact of effort expenditure on multiple reward processing stages (i.e., effort- based reward processing) using several ERPs in a well-characterized adolescent sample. In the proposed study, 150 adolescents (aged 14 to 17) and their caregivers from the greater Tallahassee, FL community will complete self-report questionnaires and clinical interviews as part of three-year follow-up visit of an ongoing longitudinal study. Adolescents will complete the effort-doors task to elicit ERPs linked to multiple reward processing stages: effort complete, reward anticipation, and sensitivity to reward receipt. Consistent with developmental research, we predict age to be associated with a larger impact of effort on multiple stages of reward processing, such that older adolescents will exhibit larger ERPs across multiple stages of reward processing following high effort (Aim 1). In terms of depression, we predict that increased depressive symptoms will relate to blunted effort-based reward processing, such that the impact of effort on multiple reward processing stages will be potentiated among adolescents with increased depressive symptoms (Aim 2). A secondary goal of this research is to elucidate diathesis-stress models in relation to depression. The proposed study will also examine whether lifetime stress exposure, as measured using the Adolescent Stress and Adversity Inventory, impacts ERPs linked to specific or multiple stages of reward processing–and whether lifetime stress exposure interacts with specific reward processing stages to explain emerging symptoms of depression. We predict that lifetime stress exposure will potentiate the impact of effort on reward processing following high effort completion (Aim 3). We also predict that increased lifetime stress exposure will interact with deficits in multiple stages of reward processing to explain increased depressive symptoms among adolescents (Aim 4). The proposed study will provide expertise in developmental psychopathology, broaden knowledge of multiple reward-related processes and their measurement, and provide training in clinical interviewing and life stress assessment in the context of emerging depression. This fellowship has the potential to identify multiple reward-related deficits and increased lifetime stress exposure as factors related to emerging depression that elucidate the etiopathogenesis of depression— and establish novel targets that can be studied in intervention and prevention strategies in future research.


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 = -$71,373 )
2023	2022	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	000	2	2/17/2023	NON-COMPETING CONTINUATION	-$59,282
2023	2022	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	002	2	7/21/2023	NON-COMPETING CONTINUATION	-$10,520
2023	2021	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	001	1	7/21/2023	NEW	-$1,571
														Subtotal = -$71,373

Issue Date FY: 2022 ( Subtotal = $69,802 )
2022	2022	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	000	2	7/19/2022	NON-COMPETING CONTINUATION	$69,802
														Subtotal = $69,802

Issue Date FY: 2021 ( Subtotal = $66,390 )
2021	2021	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	000	1	6/11/2021	NEW	$66,390
2021	2021	FLORIDA STATE UNIVERSITY	874 TRADITIONS WAY	TALLAHASSEE	FL	32306	LEON	USA	Mental Health Research Grants	001	1	6/11/2021	NEW	$0
														Subtotal = $66,390

Grand Total All Awards = $64,819

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Examining Effort-Based Reward Processing and Lifetime Stress in Relation to Depression during Adolescence

Award Number: F32MH125504

ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

PERIOD OF PERFORMANCE START DATE: 08/01/2021

PERIOD OF PERFORMANCE END DATE: 09/01/2022

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