Post-weaning infant-to-mother bonding in nutritionally independent female mice

Autoři: Stijn Stroobants aff001;  John Creemers aff003;  Guy Bosmans aff004;  Rudi D’Hooge aff001
Působiště autorů: Laboratory of Biological Psychology, KU Leuven, Leuven, Belgium aff001;  mINT Behavioral Phenotyping Facility, KU Leuven, Leuven, Belgium aff002;  Laboratory of Biochemical Neuroendocrinology, KU Leuven, Leuven, Belgium aff003;  Parenting and Special Education Research Unit, KU Leuven, Leuven, Belgium aff004
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article


Infant-parent attachment is highly selective and continues beyond essential care in primates, most prominently in humans, and the quality of this attachment crucially determines cognitive and emotional development of the infant. Altricial rodent species such as mice (Mus musculus) display mutual recognition and communal nursing in wild and laboratory environments, but parental bonding beyond the nursing period has not been reported. We presently demonstrated that socially and nutritionally independent mice still prefer to interact selectively with their mother dam. Furthermore, we observed gender differences in the mother-infant relationship, and showed disruption of this relationship in haploinsufficient Nbea+/- mice, a putative autism model with neuroendocrine dysregulation. To our knowledge, this is the first observation of murine infant-to-mother bonding beyond the nursing period.

Klíčová slova:

Animal behavior – Autism spectrum disorder – Behavior – Infants – Mice – Mothers – Mouse models – Parenting behavior


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