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<p>Social interactions shape both the physiological and behavioural development of offspring, and poor care/early caregiver loss is known to promote adverse outcomes during infancy in both animals and humans. How affiliative behaviours impact the future development of offspring remains an open question. Here, we used <i>Equus caballus</i> (domestic horse) as a model to investigate this question. By coupling magnetic resonance imaging, longitudinal biobehavioural assessments and advanced multivariate statistical modelling, we found that prolonged maternal presence during infancy promotes the maturation of brain regions involved in both social behaviour (anterior cingulate cortex and retrosplenial cortex) and physiological regulation (hypothalamus and amygdala). Additionally, offspring benefiting from a prolonged maternal presence showed higher default mode network connectivity, improved social competences and feeding behaviours, and higher concentrations of circulating lipids (triglyceride and cholesterol). The findings of the present study underscore the salient role of social interactions in the development of allostatic regulation in offspring.</p>

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Affiliative behaviours regulate allostasis development and shape biobehavioural trajectories in horses

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月13日

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  • Mathilde Valenchon,
  • Fabrice Reigner,
  • Gaëlle Lefort,
  • Hans Adriaensen,
  • Amandine Gesbert,
  • Philippe Barrière,
  • Yvan Gaude,
  • Frederic Elleboudt,
  • Isabelle Lévy,
  • Camille Ducluzeau,
  • Joëlle Dupont,
  • Anne-Lyse Lainé,
  • Ivy Uszynski,
  • Hugues Dardente,
  • Cyril Poupon,
  • Léa Lansade,
  • Ludovic Calandreau,
  • Matthieu Keller,
  • David André Barrière

摘要

Social interactions shape both the physiological and behavioural development of offspring, and poor care/early caregiver loss is known to promote adverse outcomes during infancy in both animals and humans. How affiliative behaviours impact the future development of offspring remains an open question. Here, we used Equus caballus (domestic horse) as a model to investigate this question. By coupling magnetic resonance imaging, longitudinal biobehavioural assessments and advanced multivariate statistical modelling, we found that prolonged maternal presence during infancy promotes the maturation of brain regions involved in both social behaviour (anterior cingulate cortex and retrosplenial cortex) and physiological regulation (hypothalamus and amygdala). Additionally, offspring benefiting from a prolonged maternal presence showed higher default mode network connectivity, improved social competences and feeding behaviours, and higher concentrations of circulating lipids (triglyceride and cholesterol). The findings of the present study underscore the salient role of social interactions in the development of allostatic regulation in offspring.