Schino Gabriele, Pinzaglia Marta
Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy.
Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome, Italy.
Am J Primatol. 2018 Mar;80(3):e22746. doi: 10.1002/ajp.22746. Epub 2018 Feb 28.
The effects of aging on the social behavior of nonhuman primates is little understood, especially in New World monkeys. We studied the members of a colony of tufted capuchin monkeys (Sapajus sp.) in order to evaluate age related changes in their social behavior. We conducted observations on 25 subjects aged 4-36 years, living in captive social groups. We found that affiliative interactions (grooming and proximity) decreased with age, and that grooming was increasingly directed to a single preferred partner. Manipulation of objects in the environment also decreased with age, while locomotion and aggression showed no change. Overall, these results concur with previous findings on both human and nonhuman primates, and cast doubts on interpretations of age associated changes in human social behavior that rely of uniquely human advanced cognitive capacities.
衰老对非人类灵长类动物社会行为的影响鲜为人知，尤其是在新大陆猴中。我们研究了一群簇绒卷尾猴（Sapajus sp.）的成员，以评估它们社会行为中与年龄相关的变化。我们对生活在圈养社会群体中的25只年龄在4至36岁之间的个体进行了观察。我们发现，亲和互动（梳理毛发和靠近）随年龄增长而减少，并且梳理毛发越来越多地指向单一的偏好伙伴。对环境中物体的操控也随年龄增长而减少，而运动和攻击性则没有变化。总体而言，这些结果与之前关于人类和非人类灵长类动物的研究结果一致，并对那些依赖独特的人类高级认知能力来解释人类社会行为中与年龄相关变化的观点提出了质疑。
