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Novel Story Recall Measures as Indicators of Cognitive Decline Associated with Alzheimer's Disease and Related Disorders Biomarkers: A Collaborative Study of Existing Data

Award Number: R01AG070940
ORGANIZATION: NATIONAL INSTITUTE ON AGING
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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PROJECT SUMMARY/ABSTRACT Growing advances in imaging and fluid-based assays of Alzheimer's disease (AD) biomarkers including amyloid, tau and neurodegeneration, confirm that AD processes begin decades before clinical impairment in cognitive function. Subtle changes to cognition are also likely to co-occur years before a clinical diagnosis of dementia due to AD. There is an urgent need to develop sensitive measures of subtle cognitive decline associated with AD biomarkers, particularly for monitoring response to early intervention treatments in clinical trials. The proposed investigation is highly innovative and designed to leverage existing data from three longitudinal cohort studies—Wisconsin Registry for Alzheimer's Prevention, Wisconsin Alzheimer's Disease Research Center, and BIOCARD–using a classic and widely used measure of cognition: the story recall task. We developed a novel scoring system that we hypothesize targets semantic and associative memory processes: measures that capture lexical categories and serial position. Our preliminary data shows that proper name recall and serial position scores from story recall are significantly associated with beta-amyloid status from positron emission tomography (PET), while the traditional total score was not related to amyloid status. In this proposal, our central hypothesis is that item-level analysis of existing story recall data from several longitudinal cohorts will yield one or more new measures of cognition that are uniquely associated with underlying preclinical AD pathology. The specific aims are: Aim1: Use data from multiple cohort studies to a) replicate preliminary findings that lexical-level and serial position markers from delayed story recall are associated with increased risk of amyloid positivity and b) extend analyses to investigate whether these variables are associated with PET tau, CSF Aβ and tau, or MRI neurodegeneration measures. Aim 2: Compare concurrent and predictive validity of measures to determine whether the novel measures are more strongly associated with biomarkers, cognitive decline, or progression to clinical levels of impairment than traditional total score measures. Aim 3: Enhance the lexical-level and serial position analysis with computational linguistic analysis of digitally recorded speech from story recall to determine whether semantic content, speech fluency, error-monitoring, and serial position recall explain unique variance in levels of amyloid and/or tau pathology. Impact: The proposed project leverages existing data and is expected to lead to the development of new outcome measures from a classic, commonly used test that has played a central role in detection of disease. We expect that our higher-level language and process-based measures will be sensitive to AD biomarkers in preclinical phases of cognitive decline. By utilizing existing resources from differing cohorts, we can validate our findings without adding participant burden, share these methods with other cohort studies, further develop a digital marker of speech and cognition, and contribute an improved understanding of the underlying mechanisms of memory and communication breakdowns in preclinical AD.


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 = $384,437 )
2024	2024	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Aging Research	000	4	1/10/2024	NON-COMPETING CONTINUATION	$345,994
2024	2024	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Aging Research	001	4	6/10/2024	NON-COMPETING CONTINUATION	$38,443
														Subtotal = $384,437

Issue Date FY: 2023 ( Subtotal = $384,437 )
2023	2023	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Aging Research	000	3	2/1/2023	NON-COMPETING CONTINUATION	$384,437
														Subtotal = $384,437

Issue Date FY: 2022 ( Subtotal = $381,327 )
2022	2022	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Aging Research	000	2	4/13/2022	NON-COMPETING CONTINUATION	$381,327
														Subtotal = $381,327

Issue Date FY: 2021 ( Subtotal = $431,713 )
2021	2021	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6401	MADISON	WI	53715	DANE	USA	Aging Research	000	1	1/22/2021	NEW	$431,713
														Subtotal = $431,713

Grand Total All Awards = $1,581,914

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Novel Story Recall Measures as Indicators of Cognitive Decline Associated with Alzheimer's Disease and Related Disorders Biomarkers: A Collaborative Study of Existing Data

Award Number: R01AG070940

ORGANIZATION: NATIONAL INSTITUTE ON AGING

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

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