Evidence map›Paper›PMID 31921970›Full record

ArticleAlzheimer's & dementia (New York, N. Y.)2019

Temporal association of neuropsychological test performance using unsupervised learning reveals a distinct signature of Alzheimer's disease status.

Prajakta S Joshi, Megan Heydari, Shruti Kannan, Ting Fang Alvin Ang, Qiuyuan Qin, Xue Liu, Jesse Mez, Sherral Devine, Rhoda Au, Vijaya B Kolachalama

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (New York, N. Y.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 37% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
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

10 authors at 3 institutions in 1 country.

Prajakta S JoshiDepartment of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Megan HeydariSection of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
Shruti KannanSection of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
Ting Fang Alvin AngDepartment of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Qiuyuan QinSection of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
Xue LiuDepartment of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Jesse MezBoston University Alzheimer's Disease Center, Boston, MA, USA.
Sherral DevineDepartment of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Rhoda AuDepartment of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Vijaya B KolachalamaSection of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
Boston University · USFramingham Heart Study · USUniversity of Massachusetts Boston · US

Funding

NATIONAL ALZHEIMERS COORDINATING CENTER (NACC)U01AG016976 · NIA · UNIVERSITY OF WASHINGTON · PI KUKULL, WALTER ANTHONY · 1999 to 2020
$72.8M
Project-005UL1TR001430 · NCATS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BAIR-MERRITT, MEGAN H, CENTER, DAVID M. · 2015 to 2024
$52.3M
Neuropathology CoreP30AG013846 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI KOWALL, NEIL W. · 1996 to 2020
$29.1M
EPIDEMIOLOGY OF DEMENTIA IN THE FRAMINGHAM STUDYR01AG008122 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AU, RHODA, SESHADRI, SUDHA · 1989 to 2015
$14.4M
MRI, Genetics &Cognitive Precursors of AD &DementiaR01AG016495 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AU, RHODA · 1999 to 2016
$12.5M
MRI, Cognitive, Genetic & Biomarker Precursors of AD & Dementia in Young AdultsR01AG033040 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AU, RHODA, SESHADRI, SUDHA · 2009 to 2019
$11.2M
Cognitive heterogeneity in those with high Alzheimer's Disease RiskR56AG062109 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AU, RHODA · 2018 to 2018
$517k
THE FRAMINGHAM HEART STUDY-N01HC25195-268025195-268025195N01HC025195 · HC · TRUSTEES OF BOSTON UNIVERSITY · PI WOLF, PHILIP A · 2002 to 2006
–
NCATS NIH HHS UL1 TR001430NHLBI NIH HHS HHSN268201500001CNHLBI NIH HHS HHSN268201500001INHLBI NIH HHS N01 HC025195NIA NIH HHS P30 AG013846NIA NIH HHS R01 AG008122NIA NIH HHS R01 AG016495NIA NIH HHS R01 AG033040NIA NIH HHS R56 AG062109NIA NIH HHS U01 AG016976
6 · The paper itself

Abstract

introductionSubtle cognitive alterations that precede clinical evidence of cognitive impairment may help predict the progression to Alzheimer's disease (AD). Neuropsychological (NP) testing is an attractive modality for screening early evidence of AD.

methodsLongitudinal NP and demographic data from the Framingham Heart Study (FHS; N = 1696) and the National Alzheimer's Coordinating Center (NACC; N = 689) were analyzed using an unsupervised machine learning framework. Features, including age, logical memory-immediate and delayed recall, visual reproduction-immediate and delayed recall, the Boston naming tests, and Trails B, were identified using feature selection, and processed further to predict the risk of development of AD.

resultsOur model yielded 83.07 ± 3.52% accuracy in FHS and 87.57 ± 1.19% accuracy in NACC, 80.52 ± 3.93%, 86.74 ± 1.63% sensitivity in FHS and NACC respectively, and 85.63 ± 4.71%, 88.41 ± 1.38% specificity in FHS and NACC, respectively. DISCUSSION: Our results suggest that a subset of NP tests, when analyzed using unsupervised machine learning, may help distinguish between high- and low-risk individuals in the context of subsequent development of AD within 5 years. This approach could be a viable option for early AD screening in clinical practice and clinical trials.

Indexed as

Alzheimer's diseaseFramingham Heart StudyMachine learningNational Alzheimer's Coordinating CenterNeuropsychological testing

Identifiers

PMID31921970
PMCPMC6944730
OpenAlexW2997607228

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.