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.
- Johannes Frasnelli, Arnaud Tognetti, Anja Winter, Evelina Thunell, Mats Olsson, et al.. High prevalence of long-term olfactory disorders in healthcare workers after COVID-19: A case-control study. PLoS ONE, 2024, 19 (7), pp.e0306290. ⟨10.1371/journal.pone.0306290⟩. ⟨hal-04682717⟩
- L.S. Hansson, Arnaud Tognetti, P. Sigurjónsson, E. Brück, K. Wåhlén, et al.. Perception of unfamiliar caregivers during sickness – Using the new caregiver perception task (CgPT) during experimental endotoxemia. Brain, Behavior, and Immunity, 2024, ⟨10.1016/j.bbi.2024.04.031⟩. ⟨hal-04566863⟩
- Nick S Menger, Arnaud Tognetti, Michael C Farruggia, Carla Mucignat, Surabhi Bhutani, et al.. Giving a Voice to Patients With Smell Disorders Associated With COVID-19: Cross-Sectional Longitudinal Analysis Using Natural Language Processing of Self-Reports. JMIR Public Health and Surveillance, 2024, 10, pp.e47064. ⟨10.2196/47064⟩. ⟨hal-04590267⟩
- Anna Andreasson, Arnaud Tognetti, Mike Jones, Mats Lekander, Julie Lasselin. Assessing sickness behavior in the French: Validation of the French translation of the sickness questionnaire (SicknessQ) in a non-clinical French population. Brain, Behavior & Immunity - Health, 2023, 34, pp.100708. ⟨10.1016/j.bbih.2023.100708⟩. ⟨hal-04308357⟩
- Arnaud Tognetti, Evelina Thunell, Marta Zakrzewska, Jonas Olofsson, Mats Lekander, et al.. Discriminating between sick and healthy faces based on early sickness cues: an exploratory analysis of sex differences. Evolution, Medicine, and Public Health, In press, ⟨10.1093/emph/eoad032/7284093⟩. ⟨hal-04235692v2⟩
- 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⟩
- 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, 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⟩
- 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⟩
- 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⟩
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