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Morris water maze with ICV injection

From 2021 to 2025, 269 animal research papers mentioned ICV injection and the Morris water maze in their title or abstract.

That is 1.5 times the 180 papers of 2011 to 2015. Between the same two periods, the papers that mention ICV injection and any of the 90 tests we count fell 6%.

269 animal research papers from 2021 to 2025 mentioned ICV injection and the Morris water maze
38% of the 706 papers from 2021 to 2025 that mention ICV injection and a test mention the Morris water maze
5% of the 5,392 papers from 2021 to 2025 that mention the Morris water maze also mention ICV injection
1.5 times as many papers as in 2011 to 2015

Papers by year

Animal research papers that mention ICV injection and 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
200116
200213
200312
20048
200510
200617
200713
200816
200933
201034
201124
201235
201349
201433
201539
201651
201759
201848
201953
202054
202164
202259
202348
202445
202553
2026 (part year)42

Papers that mention ICV injection and the Morris water maze fell from 64 in 2021 to 45 in 2024, then rose to 53 in 2025. Part of this dip may come from PubMed's indexing rather than from fewer studies. We take a paper's species from PubMed's indexing when the indexing names one. Otherwise PubTator 3, NCBI's text-mining service, has to find a species in the title or abstract, or the paper is not counted. 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 269 papers from 2021 to 2025. A paper can use more than one species, so the shares can add to more than 100%.

Species

Rat
181 papers 67%
Mouse
94 papers 35%
Zebrafish
1 paper under 1%

Tests mentioned alongside the Morris water maze

Each bar is one test, with how many of the 269 papers also mention it, and what share that is. Of these papers, 117 (43%) mention no other test.

The 12 tests these papers mention most

45 papers 17%
37 papers 14%
20 papers 7%
20 papers 7%
10 papers 4%
7 papers 3%
3 papers 1%
3 papers 1%

Which papers count

A paper counts here when it is animal research and its title or abstract mentions ICV injection and the Morris water maze.

A paper that mentions either only in its methods is missed, so the count runs low. The search terms are in the list of models and techniques and the test list. The full method, with each source and its terms of use, is on our main page, Behavioral tests in published research.

More pairings

Every pairing of a brain technique 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 ICV injection ranks the tests mentioned with it.

How to cite

APA

ConductScience. (2026, November 13). Morris water maze with ICV injection [Data set]. https://conductscience.com/resources/data/brain-techniques/icv-injection/morris-water-maze

BibTeX

@misc{conductscience_icv_injection_morris_water_maze_2026,
  author = {{ConductScience}},
  title = {Morris water maze with ICV injection},
  year = {2026},
  month = nov,
  url = {https://conductscience.com/resources/data/brain-techniques/icv-injection/morris-water-maze},
  note = {Data set, released November 13, 2026},
}

Morris water maze apparatus in our store

In the test battery tool, pick every test your study will run and add the apparatus we sell for them to one quote.

For studies with ICV injection, our store sells: