Green, D., Kohukchova, O., & Gredebäck, G. (2014) Extrapolation and direct matching mediate anticipation in infancy Infant Behavior and Development, 37, 111-118

Why are infants able to anticipate occlusion events and other people’s actions but not the movement of self-propelled objects? This study investigated infant and adult anticipatorygaze shifts during observation of self-propelled objects and human goal-directed actions.Six-month-old infants anticipated self-propelled balls but not human actions. This demonstrates that different processes mediate the ability to anticipate human actions (directmatching) versus self-propelled objects (extrapolation).