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Organization of high-level visual cortex in human infants

Author(s)
Keil, Boris; Deen, Benjamin Matthew; Richardson, Hilary; Dilks, Daniel D; Takahashi, Atsushi; Wald, Lawrence; Kanwisher, Nancy; Saxe, Rebecca R; ... Show more Show less
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Abstract
How much of the structure of the human mind and brain is already specified at birth, and how much arises from experience? In this article, we consider the test case of extrastriate visual cortex, where a highly systematic functional organization is present in virtually every normal adult, including regions preferring behaviourally significant stimulus categories, such as faces, bodies, and scenes. Novel methods were developed to scan awake infants with fMRI, while they viewed multiple categories of visual stimuli. Here we report that the visual cortex of 4–6-month-old infants contains regions that respond preferentially to abstract categories (faces and scenes), with a spatial organization similar to adults. However, precise response profiles and patterns of activity across multiple visual categories differ between infants and adults. These results demonstrate that the large-scale organization of category preferences in visual cortex is adult-like within a few months after birth, but is subsequently refined through development.
Date issued
2017-01
URI
http://hdl.handle.net/1721.1/110074
Department
Harvard University--MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences; McGovern Institute for Brain Research at MIT
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Deen, Ben; Richardson, Hilary; Dilks, Daniel D.; Takahashi, Atsushi; Keil, Boris; Wald, Lawrence L.; Kanwisher, Nancy and Saxe, Rebecca “Organization of High-Level Visual Cortex in Human Infants.” Nature Communications 8 (January 2017): 13995 © 2017 The Author(s)
Version: Final published version
ISSN
2041-1723

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