Research data · Brain technique and test

Fear conditioning with optogenetics

From 2021 to 2025, 111 animal research papers mentioned optogenetics and fear conditioning in their title or abstract.

That is 2.8 times the 39 papers of 2011 to 2015. Between the same two periods, the papers that mention optogenetics and any of the 90 tests we count grew faster, to 4.0 times as many.

111 animal research papers from 2021 to 2025 mentioned optogenetics and fear conditioning
25% of the 443 papers from 2021 to 2025 that mention optogenetics and a test mention fear conditioning
6% of the 2,010 papers from 2021 to 2025 that mention fear conditioning also mention optogenetics
2.8 times as many papers as in 2011 to 2015

Papers by year

Animal research papers that mention optogenetics and fear conditioning, 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
20030
20040
20050
20060
20070
20080
20090
20103
20112
20124
20136
201414
201513
201621
201716
201827
201918
202026
202131
202217
202322
202424
202517
2026 (part year)22

Which species the papers used

Each bar is a share of the 111 papers from 2021 to 2025. A paper can use more than one species, so the shares can add to more than 100%.

Species

Mouse
84 papers 76%
Rat
19 papers 17%
Other animals
9 papers 8%

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

Tests mentioned alongside fear conditioning

Each bar is one test, with how many of the 111 papers also mention it, and what share that is. Of these papers, 95 (86%) mention no other test.

Which papers count

A paper counts here when it is animal research and its title or abstract mentions optogenetics and fear conditioning.

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 fear conditioning counts all the papers that mention it, whatever they study. The page on optogenetics ranks the tests mentioned with it.

How to cite

APA

ConductScience. (2026, November 13). Fear conditioning with optogenetics [Data set]. https://conductscience.com/resources/data/brain-techniques/optogenetics/fear-conditioning

BibTeX

@misc{conductscience_optogenetics_fear_conditioning_2026,
  author = {{ConductScience}},
  title = {Fear conditioning with optogenetics},
  year = {2026},
  month = nov,
  url = {https://conductscience.com/resources/data/brain-techniques/optogenetics/fear-conditioning},
  note = {Data set, released November 13, 2026},
}

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