Processes of visual object recognition play a central role in multiple aspects of human cognition. However, very little is known about the development of these processes beyond the earliest stages of infancy. A long literature suggests a deep and fundamental coordination between vision and action in adults. One way in which action should matter critically to visual development is that one's own actions on objects generates the dynamic visual experiences that one receives about objects. Self- generated actions literally create one's views of objects. In the proposed research, we seek to understand the role of developmental changes in self-generated action in the development of visual object representations and recognition. The participants will be children between 18 and 24 months of age ?an age range during which prior work indicates that significant developmental change in object recognition occurs. This age range is also a period of rapid language expansion in typically developing children, and a period in which atypical patterns of language, motor, and more diffuse cognitive development are often first identified. Thus, the study of self-generated dynamic views of object structure will provide a new window into mechanisms and early diagnosis of atypical cognitive development. We focus on 3 aspects of visual object representations, suggested to be important in studies of high level vision in adults, which our preliminary studies indicate have roots in the 18 to 24 month period: 1) Preferred views ?the causes and consequences of the emergence of a preference for viewing the planes of objects (sides, front, back, top, and bottom) rather than views of areas between planar surfaces; 2) Axes of elongation ?the causes of developmental changes in how children hold and move objects relative to the objects'axes of elongation, and the consequences for children's perception and representation of those objects;and 3) Global structure ?the ability to recognize objects from sparse characterizations of their geometric structure. We will use both cross-sectional, and training studies to investigate the roles of action in each of these aspects of typically developing children's visual object recognition. Project Narrative: Children with perceptual and motor disorders are at risk for learning, language and attentional disorders. This work studies the cascading consequences of visual-motor development in typically developing infants (18-24-month-olds), a necessary scientific foundation to effective early diagnoses and therapies.

National Institute of Health (NIH)
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
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Cognition and Perception Study Section (CP)
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Freund, Lisa S
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Indiana University Bloomington
Schools of Arts and Sciences
United States
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Li, Julia X; James, Karin H (2016) Handwriting generates variable visual output to facilitate symbol learning. J Exp Psychol Gen 145:298-313
Smith, Linda; Yu, Chen; Yoshida, Hanako et al. (2015) Contributions of head-mounted cameras to studying the visual environments of infants and young children. J Cogn Dev 16:407-419
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Smith, Linda B (2013) It's all connected: Pathways in visual object recognition and early noun learning. Am Psychol 68:618-29

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