The determinants of variability in infant carrying within and across societies is an understudied area within parental investment research. Carrying has positive and negative consequences as it may protect the infant from predators and pathogens but is energetically costly for caregivers. Moreover, carrying may delay independent locomotor development and exposure to antigens necessary for immunological competence. The purpose of this study is to compare infants' ages and developmental milestone attainment as predictors of carrying behavior and to identify other determinants of carrying behavior among traditional forager‐horticulturalists in Papua New Guinea.

中文翻译：

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巴布亚新几内亚农村地区婴儿携带行为的决定因素。

在父母内部和跨社会的婴儿携带差异性的决定因素是父母投资研究中一个未被充分研究的领域。携带有正面和负面的后果，因为它可以保护婴儿免受天敌和病原体的侵害，但对照料者而言却在能量上付出了高昂的代价。此外，携带可能会延迟独立运动的发展和暴露于免疫能力所必需的抗原。这项研究的目的是比较婴儿的年龄和发展里程碑成就作为携带行为的预测指标，并确定巴布亚新几内亚传统觅食园艺家的其他携带行为决定因素。