Research data · Animal model

Maternal immune activation

From 2021 to 2025, 103 animal research papers mentioned maternal immune activation and at least one behavioral test.

That is 2.5 times the 42 papers of 2011 to 2015. Between the same two periods, all the animal research papers that mention any of the 90 tests we count grew more slowly, to 1.2 times as many.

103 animal research papers from 2021 to 2025 mentioned maternal immune activation and a test
2.5 times as many papers as in 2011 to 2015
40% of these papers mention prepulse inhibition and acoustic startle
28% of the 363 animal research papers from 2021 to 2025 that mention maternal immune activation also mention a test

The tests mentioned with maternal immune activation

Prepulse inhibition and acoustic startle appears in 40% of these papers and in 2.5% of all 32,277 papers that mention a test. That makes it 16 times as common in this research. Each bar is one test, with how many of the 103 papers from 2021 to 2025 mention it, and what share that is. A paper that mentions two tests counts under both.

The 15 tests these papers mention most

All 37 tests these papers mention
Papers from 2021 to 2025 that mention maternal immune activation and each test
TestPapersShare of the 103 papers
Prepulse inhibition and acoustic startle4140%
Open field2019%
Novel object recognition1616%
Elevated plus maze1414%
Three-chamber sociability test1313%
Social interaction test99%
Forced swim test66%
Y-maze66%
Self-grooming66%
Fear conditioning66%
Operant conditioning44%
Morris water maze44%
Marble burying44%
Rotarod44%
Touchscreen operant tasks33%
Sucrose preference test33%
Hole-board22%
Grip strength22%
Negative geotaxis and climbing assays22%
Wheel running11%
Drug discrimination11%
Passive avoidance11%
T-maze11%
Attentional set shifting11%
Self-administration11%
Object location test11%
Barnes maze11%
Light-dark box11%
Novelty-suppressed feeding11%
Predator odor exposure11%
Nest building11%
Five-choice serial reaction time task11%
Ladder rung walking11%
Splash test11%
Elevated zero maze11%
Beam walking11%
Pole test11%

Tests named in 30 or more of these papers link to a page on that test with maternal immune activation. To count the papers that mention two or more tests together, use the test battery tool.

Papers by year

Animal research papers that mention maternal immune activation and a behavioral test, 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
20010
20020
20031
20040
20052
20062
20072
20082
20093
20104
20118
20127
20137
201411
20159
201610
20177
201814
201912
202015
202124
202217
202326
202419
202517
2026 (part year)26

Disease models in papers that mention maternal immune activation

Each bar is one disease model, with how many of the 103 papers from 2021 to 2025 are tagged with it, and what share that is. The model comes from the paper's MeSH terms, the subject headings the National Library of Medicine adds when it indexes a paper. A paper without MeSH terms gets its model from PubTator 3, NCBI's text-mining service, if PubTator 3 finds the disease in the title or abstract. A paper can count under more than one model.

Papers from 2021 to 2025 by disease model

Which species the papers used

Each bar is a share of the 103 papers from 2021 to 2025. A paper can use more than one species, so the shares can add to more than 100%.

Species

Rat
57 papers 55%
Mouse
46 papers 45%
Other animals
2 papers 2%
Nonhuman primate
1 paper 1%

“Other animals” counts papers that use none of the species this chart names.

NIH funding

12 of the 103 papers (12%) had NIH funding. NIMH, the National Institute of Mental Health, funded the most, 7 of them. A paper counts as NIH-funded when its PubMed record lists an NIH grant, or when NIH RePORTER links it to an NIH project.

NIH-funded papers by institute

NIMHNational Institute of Mental Health
7 papers 58%
NIGMSNational Institute of General Medical Sciences
2 papers 17%
NINDSNational Institute of Neurological Disorders and Stroke
1 paper 8%
NIDA
1 paper 8%

Each share is of the NIH-funded papers. A paper with grants from two institutes counts under both.

The most cited papers from 2021 to 2025

These papers from 2021 to 2025 mention maternal immune activation and a behavioral test and have the most citations, as counted by NIH's iCite on November 5, 2026.

  1. Prenatal Poly I:C Challenge Affects Behaviors and Neurotransmission via Elevated Neuroinflammation Responses in Female Juvenile Rats.

    Int J Neuropsychopharmacol, 2022. 42 citations.

  2. Timing of maternal immune activation and sex influence schizophrenia-relevant cognitive constructs and neuregulin and GABAergic pathways.

    Brain Behav Immun, 2022. 41 citations.

  3. A proof-of-concept study of maternal immune activation mediated induction of Toll-like receptor (TLR) and inflammasome pathways leading to neuroprogressive changes and schizophrenia-like behaviours in offspring.

    Eur Neuropsychopharmacol, 2021. 39 citations.

  4. Maternal immune activation alters adult behavior, intestinal integrity, gut microbiota and the gut inflammation.

    Brain Behav, 2021. 35 citations.

  5. Behavioral Alterations and Decreased Number of Parvalbumin-Positive Interneurons in Wistar Rats after Maternal Immune Activation by Lipopolysaccharide: Sex Matters.

    Int J Mol Sci, 2021. 34 citations.

How we counted

A paper counts here when it is animal research and its title or abstract mentions maternal immune activation and at least one of the 90 behavioral tests. A count is a number of papers, not of experiments, labs or animals. A paper that mentions maternal immune activation only in its methods is missed, so the count runs low.

A paper is animal research when its MeSH terms name an animal species. If they name none, NCBI's text-mining service PubTator 3 has to find one in the title or abstract. Papers on animals other than mice, rats, zebrafish, flies and primates count only when they also mention a test. Many of them study people or use the same words for something else.

The search terms for maternal immune activation are in the download Animal models and brain techniques. The counts in the chart of tests are in Tests mentioned with each model or technique. The full method, with each source and its terms of use, is on our main page, Behavioral tests in published research.

More animal models

Each animal model with 100 or more papers from 2021 to 2025 that mention a test has a page. These are the others, each with that count.

How to cite

APA

ConductScience. (2026, November 13). Behavioral tests with maternal immune activation [Data set]. https://conductscience.com/resources/data/animal-models/maternal-immune-activation

BibTeX

@misc{conductscience_maternal_immune_activation_2026,
  author = {{ConductScience}},
  title = {Behavioral tests with maternal immune activation},
  year = {2026},
  month = nov,
  url = {https://conductscience.com/resources/data/animal-models/maternal-immune-activation},
  note = {Data set, released November 13, 2026},
}

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