Audio recorders, accelerometers, and cameras that infants wear throughout their everyday lives capture the experiences that are available to shape development. Using sensors to capture behaviors in natural settings can reveal patterns within the everyday hubbub that are unknowable using methods that capture shorter, more isolated, or more planned slices of behavior. Here, we review 10 lessons learned from recent endeavors in which researchers neither designed nor participated in infants’ experiences and instead quantified patterns that arose within infants’ own spontaneously arising everyday experiences. The striking heterogeneity of experiences—the fact that there is no meaningfully “representative” hour of a day, instance of a category, interaction context, or infant—inspires next steps in theory and practice that embrace the complex, dynamic, and multiple pathways of human development.

婴儿在日常生活中佩戴的录音机、加速度计和相机捕捉可用于塑造发育的经验。使用传感器捕捉自然环境中的行为可以揭示日常喧嚣中的模式，这些模式使用捕捉更短、更孤立或更有计划的行为片段的方法是不可知的。在这里，我们回顾了从最近的努力中吸取的 10 个经验教训，在这些努力中，研究人员既没有设计也没有参与婴儿的经历，而是量化了婴儿自身自发产生的日常经历中出现的模式。体验的显着异质性——一天中没有有意义的“代表性”时间、类别实例、交互环境或婴儿——激发了理论和实践的下一步，拥抱复杂的、动态的、