Head and body structure infants’ visual experiences during mobile, naturalistic play

Abstract

Infants' visual experiences are important for learning, and may depend on how information is structured in the visual field. This study examined how objects are distributed in 12-month-old infants' field of view in a mobile play setting. Infants wore a mobile eye tracker that recorded their field of view and eye movements while they freely played with toys and a caregiver. We measured how centered and spread object locations were in infants' field of view, and investigated how infant posture, object looking, and object distance affected the centering and spread. We found that far toys were less centered in infants' field of view while infants were prone compared to when sitting or upright. Overall, toys became more centered in view and less spread in location when infants were looking at toys regardless of posture and toy distance. In sum, this study showed that infants' visual experiences are shaped by the physical relation between infants' bodies and the locations of objects in the world. However, infants are able to compensate for postural and environmental constraints by actively moving their head and eyes when choosing to look at an object.

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