Affiliative behaviours regulate allostasis development and shape biobehavioural trajectories in horse
Résumé
Social interactions shape both physiological and behavioural development of offspring and poor care/early caregiver loss are known to promote negative outcomes in adulthood in both animals and humans. How affiliative behaviours impact future development of offspring remains unknown. Here, we used Equus caballus (domestic horse) as a model to investigate this question. By coupling magnetic resonance imaging, longitudinal biobehavioural assessment and advanced multivariate statistical modelling we found that maternal presence during childhood promotes maturation of brain territories involved in both social behaviour (anterior cingulate, retrosplenial cortex) and physiological regulation (hypothalamus, amygdala). Additionally, we found that offsprings benefiting from prolonged maternal presence showed higher default mode network (DMN) connectivity, improved social competences, more efficient feeding behaviours, and metabolic profiles. The present study underscores the salient role of social interactions for the development of allostatic regulation in offspring.
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Cite 10.5281/zenodo.13969826 Jeu de données Valenchon, M., REIGNER, F., Lefort, G., Adriaensen, H., Barrière, P., Gesbert, A., Blard, T., Elleboudt, F., Lévy, I., Dupont, J., Uszynski, I., Poupon, C., Calandreau, L., Lansade, L., Keller, M., & Barriere, D. (2024). The Turone Equine Social Brain Dataset [Data set]. Zenodo. https://doi.org/10.5281/ZENODO.13969826
Cite 10.5281/zenodo.10731030 Article Barrière, D. A., Valenchon, M., Calandreau, L., Lansade, L., & Keller, M. (2024). The Turone Equine Brain Templates and Atlases. Zenodo. https://doi.org/10.5281/ZENODO.10731030