Relationships between play and responses to tickling in male juvenile rats.
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Wistar rats have been shown to be reliably responsive to tickling and PH.
“This outbred albino strain has been shown to be reliably responsive to tickling and PH ( Bombail et al., 2019; Hammond et al., 2019) and is one of the commonly used strains for such experiments (23% of rat tickling studies used Wistar rats; LaFollette et al., 2017).”
From Stage 2 Registered Report: Refinement of tickling protocols to improve positive animal welfare in laboratory rats (2025) · cites this paper as Hammond et al., 2019
The available passages identify a study of play and tickling in male juvenile rats (title and ‘1 Finished’ metadata), but do not state the rats’ strain or report reliable responses to tickling and PH. Searches for Wistar and playful handling/PH returned no passage addressing those points. (LLM, conf=0.75)
Experimental — accuracy not yet measuredThe position of the home cages in the rack was randomised across treatments.
“Due to the varying lux levels and other potentially confounding variables, position of the home cages in the rack was randomised across treatments (see Hammond et al., 2019).”
From Stage 2 Registered Report: Refinement of tickling protocols to improve positive animal welfare in laboratory rats (2025) · cites this paper as Hammond et al., 2019
The passages retrieved from our copy do not address where cages were placed in the rack or whether their positions were randomised across treatments. Searches for cage-rack position, randomisation, and lux levels found no Methods passage that could verify the claim. (LLM, conf=0.70)
Experimental — accuracy not yet measured
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Cites
Assessment of positive emotions in animals to improve their welfare
Boissy, A., Manteuffel, G., Jensen, M. B., Moe, R. O., Spruijt, B., Keeling, L. J., Winckler, C., Forkman, B., Dimitrov, I., Langbein, J., et al. (2007) · Physiology & Behavior · doi:10.1016/j.physbeh.2007.02.003 · Cited by 1,486 · see citing works
The Existence of Publication Bias and Risk Factors for Its Occurrence
Dickersin, K. (1990) · JAMA: The Journal of the American Medical Association · doi:10.1001/jama.1990.03440100097014 · Cited by 1,417 · see citing works
The Genesis of Animal Play: Testing the Limits
Burghardt, G. M. (2005) · doi:10.7551/mitpress/3229.001.0001 · Cited by 1,094 · see citing works
Rough-and-Tumble Play and the Development of the Social Brain
Pellis, S. M., & Pellis, V. C. (2007) · Current Directions in Psychological Science · doi:10.1111/j.1467-8721.2007.00483.x · Cited by 225 · see citing works
van Kerkhof, L. W., Damsteegt, R., Trezza, V., Voorn, P., & Vanderschuren, L. J. (2013) · Neuropsychopharmacology · doi:10.1038/npp.2013.83 · Cited by 161 · see citing works
Prenatal stress feminizes juvenile play patterns in male rats
Ward, I. L., & Stehm, K. E. (1991) · Physiology & Behavior · doi:10.1016/0031-9384(91)90552-y · Cited by 125 · see citing works
Rat tickling: A systematic review of applications, outcomes, and moderators.
LaFollette, M. R., O’Haire, M. E., Cloutier, S., Blankenberger, W. B., & Gaskill, B. N. (2017) · PLOS ONE · doi:10.1371/journal.pone.0175320 · Cited by 84 · see citing works
Play in Rats: Association across Contexts and Types, and Analysis of Structure
Melotti, L., Bailoo, J., Murphy, E., Burman, O., & Wurbel, H. (2014) · Animal Behavior and Cognition · doi:10.12966/abc.11.06.2014 · Cited by 26 · see citing works
Bombail, V., Jerôme, N., Lam, H., Muszlak, S., Meddle, S. L., Lawrence, A. B., & Nielsen, B. L. (2019) · PLOS ONE · doi:10.1371/journal.pone.0212829 · Cited by 17 · see citing works
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Bombail, V., Jerôme, N., Lam, H., Muszlak, S., Meddle, S. L., Lawrence, A. B., & Nielsen, B. L. (2019) · PLOS ONE · doi:10.1371/journal.pone.0212829 · Cited by 17 · see citing works
Self-citationSex differences in 50 kHz call subtypes emitted during tickling-induced playful behaviour in rats.
Tivey, E. K. L., Martin, J. E., Brown, S. M., Bombail, V., Lawrence, A. B., & Meddle, S. L. (2022) · Scientific Reports · doi:10.1038/s41598-022-19362-7 · Cited by 13 · see citing works
Self-citationBombail, V., Brown, S. M., Beyts, C., Martin, J. E., Li, T., Meddle, S. L., Mendl, M., Robinson, E. S., Hammond, T. J., Nielsen, B. L., et al. (2025) · F1000Research · doi:10.12688/f1000research.166417.2 · Cited by 4 · see citing works
“Control: We applied the same control treatment as in our previous work (Bombail et al., 2019; Hammond et al., 2019) where the experimenter placed their hand against the inside of the arena for the entire session.”
InfluentialSelf-citation
- Authors
- Hammond, T., Bombail, V., Nielsen, B. L., Meddle, S. L., Lawrence, A. B., & Brown, S. M.
- Affiliations
- Roslin Institute (GB)
- Université Paris-Saclay (FR)
- Corresponding author
- Hammond, Tayla
- ORCID
- Venue
- Applied Animal Behaviour Science
- Publisher
- Elsevier BV
- Published
- 2019-12
- Volume
- 221
- Pages
- 104879
- ISSN
- 0168-1591 (ISSN-L)
- OpenAlex
- W2976672641
- Cited by
- 18
- References
- 9
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 5 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1
- FWCI
- 2.31
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Applied Animal Behaviour Science (publishedVersion)
- HAL (submittedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by-nc-nd)
- Funders
- Rural and Environment Science and Analytical Services Division
- Biotechnology and Biological Sciences Research Council
- Topics
- Health Sciences › Veterinary › Small Animals › Animal Behavior and Welfare Studies
- Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Developmental Biology › Animal Vocal Communication and Behavior
- Keywords
- tickling, social play, solitary play, ultrasonic vocalizations, positive affect, emotional contagion, rebound effect, young rats, affective states, developmental differences, body weight
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