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Morris water maze in aging research

From 2021 to 2025, 182 animal research papers on aging mentioned the Morris water maze in their title or abstract.

That is 34% fewer than the 277 papers of 2011 to 2015. Between the same two periods, the papers on aging that mention any of the 90 tests we count fell 21%. The 2021 to 2025 count may run low because of a dip in PubMed's indexing, explained under the year chart.

182 papers on aging from 2021 to 2025 mentioned the Morris water maze
26% of the papers on aging that mention any test mention the Morris water maze
3% of the papers that mention the Morris water maze are on aging
34% fewer papers than in 2011 to 2015

Papers by year

Animal research papers on aging that mention the Morris water maze, by year, 2001 to 2026

The 2026 bar counts papers added to PubMed by November 8, 2026.

  • Papers in a full year
  • 2026 so far
Show the counts for each year
Papers by year
YearPapers
200127
200240
200343
200434
200539
200644
200748
200841
200959
201047
201141
201255
201363
201456
201562
201653
201751
201859
201948
202034
202136
202221
202316
202452
202557
2026 (part year)56

Papers on aging that mention the Morris water maze fell from 36 in 2021 to 16 in 2023, then rose to 57 in 2025. Part of this dip may come from PubMed's indexing rather than from fewer studies. Where PubMed has indexed a paper, we take its disease models from that indexing. Otherwise PubTator 3, NCBI's text-mining service, has to find the disease in the title or abstract, or the paper is not counted here. Papers that PubMed indexed under the subject heading Animals also fell and rose, from 200,221 in 2021 to 156,447 in 2023 and 235,479 in 2025.

Which species the papers used

Each bar is a share of the 182 papers from 2021 to 2025. A paper can use more than one species, so the shares can add to more than 100%.

Species

Mouse
118 papers 65%
Rat
67 papers 37%
Fruit fly
1 paper 1%

Tests mentioned alongside the Morris water maze

Each bar is one test, with how many of the 182 papers also mention it, and what share that is. Of these papers, 91 (50%) mention no other test.

The 12 tests these papers mention most

25 papers 14%
14 papers 8%
11 papers 6%
10 papers 5%
3 papers 2%
2 papers 1%
2 papers 1%

Which papers count

A paper counts here when it is animal research, mentions the Morris water maze in its title or abstract, and studies aging.

We tell whether a paper studies aging from its MeSH terms, the subject headings the National Library of Medicine adds when it indexes a paper. For a paper without MeSH terms, PubTator 3, NCBI's text-mining service, has to find the disease in the title or abstract. A paper can count under more than one disease model. A paper that mentions the test only in its methods is missed, so the count runs low.

The page on aging research names the subject headings we count as aging. Download the test list for the search terms we used for the Morris water maze, or the paper list for the PubMed ID of every paper behind these counts. Our main page, Behavioral tests in published research, has the full method and each source's terms of use.

More tests and disease models

Every pairing of a disease model and a test with 30 or more papers from 2021 to 2025 has a page like this one.

The page on the Morris water maze counts all the papers that mention it, whatever they study. The page on aging research ranks the tests by their papers on aging.

How to cite

APA

ConductScience. (2026, November 10). Morris water maze in aging research [Data set]. https://conductscience.com/resources/data/behavioral-tests/models/aging/morris-water-maze

BibTeX

@misc{conductscience_aging_morris_water_maze_2026,
  author = {{ConductScience}},
  title = {Morris water maze in aging research},
  year = {2026},
  month = nov,
  url = {https://conductscience.com/resources/data/behavioral-tests/models/aging/morris-water-maze},
  note = {Data set, released November 10, 2026},
}

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