Oxytocin forms inter-individual relationship

[Speaker] Kikusui, Takefumi:1
[Co-author] Nagasawa, Miho:1, Mogi, Kazutaka:1
1:Azabu University (Japan)

Animals developed sympathetic neural and behavioral systems, in which for example, weak and helpless member of individuals are protected and nurtured by other group members. This phenomenon is mostly clearly observed in mother-infant relationship, such as mother infant bonding. Neurochemically, oxytocin in the neural system plays a pivotal role in each side of the mother-infant bonding process. The oxytocin then enhances their own parenting behavior toward their infants, and if the infants receive higher levels of parenting care, their oxytocin system is stimulated and makes them seek more contact with their parent. During parenting, animals show increased oxytocin related to infant attachment behavior. Thus, there is a positive loop of attachment-parenting behavior via the oxytocin system on each side of infant-mother dyad. This oxytocin system strengthens inter-species bonding, such as human-dog bonding, by using eye-gaze interactions with the owners.
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