Laboratory for Affiliative Social Behavior, RIKEN Center for Brain Science, Wako, Japan.
Laboratory of Physiology, Department of Basic Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
Commun Biol. 2024 Feb 20;7(1):212. doi: 10.1038/s42003-024-05875-6.
Children's secure attachment with their primary caregivers is crucial for physical, cognitive, and emotional maturation. Yet, the causal links between specific parenting behaviors and infant attachment patterns are not fully understood. Here we report infant attachment in New World monkeys common marmosets, characterized by shared infant care among parents and older siblings and complex vocal communications. By integrating natural variations in parenting styles and subsecond-scale microanalyses of dyadic vocal and physical interactions, we demonstrate that marmoset infants signal their needs through context-dependent call use and selective approaches toward familiar caregivers. The infant attachment behaviors are tuned to each caregiver's parenting style; infants use negative calls when carried by rejecting caregivers and selectively avoid neglectful and rejecting caregivers. Family-deprived infants fail to develop such adaptive uses of attachment behaviors. With these similarities with humans, marmosets offer a promising model for investigating the biological mechanisms of attachment security.
儿童与主要照顾者之间的安全依恋对其身体、认知和情感成熟至关重要。然而，特定的育儿行为和婴儿依恋模式之间的因果关系尚不完全清楚。在这里，我们报告了新世界猴普通狨猴的婴儿依恋情况，其特点是父母和兄弟姐妹共同照顾婴儿，以及复杂的声音交流。通过整合育儿风格的自然变化和对二元声音和身体互动的亚秒级微观分析，我们证明了狨猴婴儿通过依赖于情境的叫声使用和对熟悉照顾者的选择性接近来表达自己的需求。婴儿的依恋行为与每个照顾者的育儿风格相匹配；当被拒绝的照顾者抱着婴儿时，婴儿会发出负面的叫声，并选择性地避开疏忽和拒绝的照顾者。被剥夺家庭的婴儿无法发展出这种适应性的依恋行为。狨猴与人类有这些相似之处，为研究依恋安全性的生物学机制提供了一个很有前途的模型。
