Evidence map›Paper›PMID 24633738›Full record

SynthesisBrain structure & function2015

Specific and disease stage-dependent episodic memory-related brain activation patterns in Alzheimer's disease: a coordinate-based meta-analysis.

Nils Nellessen, Claudia Rottschy, Simon B Eickhoff, Simon T Ketteler, Hanna Kuhn, N Jon Shah, Jörg B Schulz, Martina Reske, Kathrin Reetz

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Brain structure & function, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 4 pooled it
3.3field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 4 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  17. Default mode network dissociation linking cerebral beta amyloid retention and depression in cognitively normal older adults.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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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

9 authors at 4 institutions in 1 country.

Nils NellessenDepartment of Neurology, RWTH Aachen University, Pauwelsstrasse 30, 52074, Aachen, Germany.
Claudia Rottschy
Simon B Eickhoff
Simon T Ketteler
Hanna Kuhn
N Jon Shah
Jörg B Schulz
Martina Reske
Kathrin Reetz
RWTH Aachen University · DEForschungszentrum Jülich · DEJülich Aachen Research Alliance · DEHeinrich Heine University Düsseldorf · DE

Funding

Meta-anaylsis in human brain mappingR01MH074457 · NIMH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FOX, PETER THORNTON · 2006 to 2024
$10.5M
NIMH NIH HHS R01 MH074457NIMH NIH HHS R01-MH074457-01A1
6 · The paper itself

Abstract

Episodic memory is typically affected during the course of Alzheimer's disease (AD). Due to the pronounced heterogeneity of functional neuroimaging studies on episodic memory impairments in mild cognitive impairment (MCI) and AD regarding their methodology and findings, we aimed to delineate consistent episodic memory-related brain activation patterns. We performed a systematic, quantitative, coordinate-based whole-brain activation likelihood estimation meta-analysis of 28 functional magnetic resonance imaging (fMRI) studies comprising 292 MCI and 102 AD patients contrasted to 409 age-matched control subjects. We included episodic encoding and/or retrieval phases, investigated the effects of group, verbal or image stimuli and correlated mean Mini-Mental-Status-Examination (MMSE) scores with the modelled activation estimates. MCI patients presented increased right hippocampal activation during memory encoding, decreased activation in the left hippocampus and fusiform gyrus during retrieval tasks, as well as attenuated activation in the right anterior insula/inferior frontal gyrus during verbal retrieval. In AD patients, however, stronger activation within the precuneus during encoding tasks was accompanied by attenuated right hippocampal activation during retrieval tasks. Low cognitive performance (MMSE scores) was associated with stronger activation of the precuneus and reduced activation of the right (para)hippocampus and anterior insula/inferior frontal gyrus. This meta-analysis provides evidence for a specific and probably disease stage-dependent brain activation pattern related to the pathognomonic AD characteristic of episodic memory loss.

Indexed as

Memory, EpisodicAgedAged, 80 and overAlgorithmsAlzheimer DiseaseBrainBrain MappingCognitive DysfunctionFemaleHumansMagnetic Resonance ImagingMaleMental Status ScheduleMiddle Aged

Identifiers

PMID24633738
PMCPMC8004564
OpenAlexW2010881590

What OpenQuestion holds

Textmetadata
LicenceTDM
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.