The Development of Directed-reaching Aptitude in Infancy (DADI) dataset is a longitudinal resource capturing the emergence of object-directed action in early infancy. Infants are recorded at 6, 10, 13, and 17 weeks, during both hanging-mobile interaction and spontaneous movement sessions. Using pose estimation and kinematic analysis, DADI enables quantitative investigation of how early motor behavior becomes increasingly organized across development, providing an ecologically grounded framework for studying the emergence of goal-directed action and the foundations of agency.
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