Evidence map›Paper›PMID 26192539›Full record

ArticleNeuropsychology2016

A diffusion model analysis of episodic recognition in preclinical individuals with a family history for Alzheimer's disease: The adult children study.

Andrew J Aschenbrenner, David A Balota, Brian A Gordon, Roger Ratcliff, John C Morris

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In one paragraph

Article in Neuropsychology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Andrew J AschenbrennerDepartment of Psychology, Washington University in St. Louis.
David A BalotaDepartment of Psychology, Washington University in St. Louis.
Brian A GordonDepartment of Radiology, Washington University in St. Louis.
Roger RatcliffDepartment of Psychology, The Ohio State University.
John C MorrisDepartment of Neurology, Washington University in St. Louis.

Funding

The natural history of AB accumulation in preclinical ADP01AG026276 · NIA · WASHINGTON UNIVERSITY · PI SCHINDLER, SUZANNE ELIZABETH · 2005 to 2025
$49.5M
AGING AND DEVELOPMENTT32AG000030 · NIA · WASHINGTON UNIVERSITY · PI DENISE HEAD, Jeffrey M Zacks · 1985 to 2026
$9.7M
NIA NIH HHS P01 AG026276NIA NIH HHS P01-AG26276NIA NIH HHS T32 AG000030
6 · The paper itself

Abstract

objectiveA family history of Alzheimer's disease (AD) increases the risk of developing AD and can influence the accumulation of well-established AD biomarkers. There is some evidence that family history can influence episodic memory performance even in cognitively normal individuals. We attempted to replicate the effect of family history on episodic memory and used a specific computational model of binary decision making (the diffusion model) to understand precisely how family history influences cognition. Finally, we assessed the sensitivity of model parameters to family history controlling for standard neuropsychological test performance.

methodAcross 2 experiments, cognitively healthy participants from the Adult Children Study completed an episodic recognition test consisting of high- and low-frequency words. The diffusion model was applied to decompose accuracy and reaction time (RT) into latent parameters which were analyzed as a function of family history.

resultsIn both experiments, individuals with a family history of AD exhibited lower recognition accuracy and this occurred in the absence of an apolipoprotein E (APOE) ε4 allele. The diffusion model revealed this difference was due to changes in the quality of information accumulation (the drift rate) and not differences in response caution or other model parameters. This difference remained after controlling for several standard neuropsychological tests.

conclusionsThese results confirm that the presence of a family history of AD confers a subtle cognitive deficit in episodic memory as reflected by decreased drift rate that cannot be attributed to APOE. This measure may serve as a novel cognitive marker of preclinical AD.

Indexed as

CognitionMemory, EpisodicAdultAdult ChildrenAllelesAlzheimer DiseaseApolipoprotein E4Apolipoproteins ECognition DisordersComputer SimulationFemaleHumansMaleReaction TimeRiskApolipoprotein E4Apolipoproteins E

Identifiers

PMID26192539
PMCPMC4720576

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.