Evidence map›Paper›PMID 42242927›Full record

ArticleLearning & memory (Cold Spring Harbor, N.Y.)2026

Item recognition is associated with gut microbiota composition in healthy humans.

Javiera P Oyarzun, Thomas M Kuntz, Xochitl C Morgan, Emily A Green, Lila Davachi, Curtis Huttenhower, Joseph E LeDoux, Elizabeth A Phelps

Abstract read
PubMed Publisher
In one paragraph

Article in Learning & memory (Cold Spring Harbor, N.Y.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

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

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Javiera P OyarzunDepartment of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA.ORCID http://orcid.org/0000-0002-6486-0689
Thomas M KuntzDepartment of Biostatistics, Microbiome Analysis Core, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02155, USA.ORCID http://orcid.org/0000-0002-0823-0340
Xochitl C MorganDepartment of Biostatistics, Microbiome Analysis Core, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02155, USA.ORCID http://orcid.org/0000-0002-6264-6961
Emily A GreenDepartment of Biostatistics, Microbiome Analysis Core, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02155, USA.ORCID http://orcid.org/0000-0002-0824-6369
Lila DavachiDepartment of Psychology, Columbia University, New York, New York 10025, USA.ORCID http://orcid.org/0000-0003-4317-0889
Curtis HuttenhowerDepartment of Biostatistics, Microbiome Analysis Core, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02155, USA.ORCID http://orcid.org/0000-0002-1110-0096
Joseph E LeDouxCenter for Neural Science and Department of Psychology, New York University, New York, New York 10003, USA.ORCID http://orcid.org/0000-0001-7591-4876
Elizabeth A PhelpsDepartment of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA phelps@fas.harvard.edu.ORCID http://orcid.org/0000-0002-6215-8159

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Murine studies show that the gut microbiota-the collection of the microbes residing in the large intestine-affects memory performance in the host. However, whether commensal gut bacteria are linked to human episodic memory remains unknown. Here, we investigated whether individual differences in episodic memory performance were associated with differences in the indigenous gut microbiota composition between individuals. We show that greater gut microbiota α diversity was associated with better item recognition and that gut microbiota dissimilarity index (β diversity) between participants was associated with differences in their performance. Finally, our results suggest that

Indexed as

Gastrointestinal MicrobiomeMemory, EpisodicRecognition, PsychologyAdultFecesFemaleHumansIndividualityMalePrevotellaYoung Adult

Identifiers

PMID42242927

What OpenQuestion holds

Textmetadata
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.