Precursors to the development of intention at 6 months: Understanding people and their actions.

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Abstract
Under investigation was whether 6-month-old infants expect people to behave differently toward persons and inanimate objects. Infants were randomly assigned to experimental and control conditions. In the experimental conditions, infants were habituated to an actor who either talked to or reached for and swiped with something hidden behind an occluder. In the test events the actor was occluded, but the infants were shown either a person or an object. In the control condition, infants only saw the person or object stimulus. Results showed that infants who had been habituated to an actor who was talking looked longer at the object, and infants who had been habituated to an actor who was reaching and swiping looked longer at the person. No difference in looking at the stimuli was observed in the control condition. This suggests that infants expect people's actions to be related to objects in ways that are continuous with more mature, intentional understandings.