Human infancy has been studied as a platform for hypothesis and theory testing, as a major physiological and psychological adjustment, as an object of adults' effects as well as a source of effects on adults, for its comparative value, as a stage of life, and as a setting point for the life course. Following an orientation to infancy studies, including previous reviews and a discussion of the special challenges infants pose to research, this article focuses on infancy as a foundation and catalyst of human development in the balance of the life course. Studies of stability and prediction from infancy illustrate the depth and complexity of modern research on infants and provide a long-awaited reply to key philosophical and practical questions about the meaningfulness and significance of infancy.

中文翻译：

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人类的婴儿期……以及余下的生命周期。

人类婴儿期被研究作为假设和理论检验的平台，作为主要的生理和心理调整，作为成人影响的对象以及对成人影响的来源，因其比较价值，作为生命的一个阶段，并作为生命历程的设定点。本文以婴儿期研究为导向，包括之前的评论和对婴儿对研究构成的特殊挑战的讨论，重点关注婴儿期作为人类生命历程平衡发展的基础和催化剂。对婴儿期稳定性和预测的研究说明了现代婴儿研究的深度和复杂性，并为有关婴儿期意义和重要性的关键哲学和实践问题提供了期待已久的答案。