Arnaud Tognetti
My research focuses on the evolutionary and psychological mechanisms underlying human sociality, adopting interdisciplinary approaches at the intersection of evolutionary anthropology, behavioral ecology, experimental psychology and behavioral economics.
My current main research project explores human behavioral immunity, a facet of our sociality linked to the infectious risk imposed by group living, favoring pathogen transmission through increased physical proximity to infected individuals. The aim is to better understand our behavioral immune system, by examining whether humans, like other social species, are able to detect sick conspecifics through phenotypic cues such as facial features or body odors, and whether the perception of these signals induces avoidance behaviors and influences interpersonal decision-making. This research project is being carried out in close collaboration with Mats J. Olsson, Julie Lasselin and Mats Lekander of the Karolinska Institutet in Stockholm, Sweden.
My previous research has focused on cooperation, addressing topics such as the influence of sexual selection on the evolution of cooperation, the existence of phenotypic cues to cooperation, and the role of hormones in cooperative behavior. I have also extended the scope of my research to interspecific comparisons, testing the influence of the propensity to cooperate on mate choice in two other social species, the gleaner mouse(Mus spicilegus) and social weavers(Philetairus socius).
For more information on my research, please see my Google Scholar page and my personal web page.
- L.S. Hansson, Arnaud Tognetti, P. Sigurjónsson, E. Brück, K. Jensen, et al.. A sick sense of care: Perception of caregivers by sick individuals. IAREP-SABE 47th International Conference, Jun 2023, Nice, France. ⟨hal-04974257⟩
- Astrid Hopfensitz, Arnaud Tognetti, Valérie Durand, Dimitri Dubois, Melissa Barkat-Defradas, et al.. The smell of cooperativeness: Do human body odours advertise cooperative behaviours?. IAREP-SABE 47th International Conference, Jun 2023, Nice, France. ⟨hal-04692414⟩
- Arnaud Tognetti, Mats J Olsson. Humans can detect axillary odor cues of an acute respiratory infection in others. Olfactus 2023, Jun 2023, Stockhlom, Sweden. ⟨hal-04974240⟩
- Lina S Hansson, Julie Lasselin, Arnaud Tognetti, J. Axelsson, M.J. Olsson, et al.. The walking sick: Perception of experimental sickness from biological motion. Brain, Behavior, and Immunity, 2023, 113, pp.319-327. ⟨10.1016/j.bbi.2023.07.020⟩. ⟨hal-04199560v2⟩
- Arnaud Tognetti, Supreet Saluja, Nathalie Lybert, Julie Lasselin, Sandra Tamm, et al.. Olfactory Cues of Naturally Occurring Systemic Inflammation: A Pilot Study of Seasonal Allergy. Neuroimmunomodulation, 2023, 30, pp.338 - 345. ⟨10.1159/000535047⟩. ⟨hal-04362298⟩
- Arnaud Tognetti, Megan N Williams, Nathalie Lybert, Mats Lekander, John Axelsson, et al.. Humans can detect axillary odor cues of an acute respiratory infection in others. Evolution, Medicine, and Public Health, 2023, 11 (1), pp.219-228. ⟨10.1093/emph/eoad016⟩. ⟨hal-04199575⟩
- Stephanie Anja Juran, Arnaud Tognetti, Johan N Lundström, Lalit Kumar, Richard J Stevenson, et al.. Disgusting odors trigger the oral immune system. Evolution, Medicine, and Public Health, 2022, 11 (1), pp.8 - 17. ⟨10.1093/emph/eoac042⟩. ⟨hal-04202384⟩
- Richard Bränström, Arnaud Tognetti. Comment l’évolution de l’opinion publique et des réformes législatives influence-t-elle la satisfaction de vie des minorités sexuelles ?. Santé Publique, 2022, Vol. 34 (HS2), pp.169-178. ⟨10.3917/spub.hs2.0169⟩. ⟨hal-04361142⟩
- Jeanne Bovet, Arnaud Tognetti, Thomas V Pollet. Methodological issues when using face prototypes: A case study on the Faceaurus dataset. Evolutionary Human Sciences, 2022, 4, pp.e48. ⟨10.1017/ehs.2022.25⟩. ⟨hal-04361207⟩
- Rita Covas, Sophie Lardy, Liliana R. Silva, Benjamin Rey, André C. Ferreira, et al.. The oxidative cost of helping and its minimization in a cooperative breeder.. Behavioral Ecology, 2022, 33 (3), pp.504-517. ⟨10.1093/beheco/arab152⟩. ⟨hal-03693496⟩
Documents retrieved from the HAL open archive 
Perception of unfamiliar caregivers during sickness - Using the new Caregiver Perception Task (CgPT) during experimental endotoxemia
High prevalence of long-term olfactory disorders in healthcare workers after COVID- 19: A case-control study
