Non-human primates exhibit distinct attachment types similar to human infants
Non-human primates, such as marmosets and macaques, exhibit distinct attachment behaviors and tuning to parental styles that closely mirror human infant attachment patterns.
Multiple high-quality studies on non-human primates demonstrate distinct attachment patterns and behavioral tuning in response to caregiver styles that parallel human infant attachment types.
Yano-Nashimoto S, Truzzi A, Shinozuka K, Murayama AY, Kurachi T, Moriya-Ito K, Tokuno H, Miyazawa E, Esposito G, Okano H, Nakamura K, Saito A, Kuroda KO. Anxious about rejection, avoidant of neglect: Infant marmosets tune their attachment based on individual caregiver's parenting style.. 2024. https://doi.org/10.1038/s42003-024-05875-6
This study demonstrates that common marmoset infants tune their attachment behaviors to their caregivers' parenting styles and display distinct patterns such as selective avoidance, mirroring human infant attachment dynamics.
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Tchalova K, Lydon JE, Atkinson L, Fleming AS, Kennedy J, Lecompte V, Meaney MJ, Moss E, O'Donnell KA, O'Donnell KJ, Silveira PP, Sokolowski MB, Steiner M, Bartz JA. Variation in the mu-opioid receptor gene (OPRM1) moderates the influence of maternal sensitivity on child attachment.. 2024. https://doi.org/10.1038/s41398-024-02888-x
Research in infant rhesus macaques shows that variation in the mu-opioid receptor gene relates to individual differences in separation distress and contact-seeking behavior, closely paralleling human attachment patterns linked to the same genetic systems.
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