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Journal Title:

Nature Communications

Volume:

Volume 8

Publisher:

Nature Publishing Group: Nature Communications | 2017-01-10, Pages 13995-13995

Type of Work:

Article | Final Publisher PDF

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.

Subjects: Psychology, Cognitive - Engineering, Biomedical - Research Funding: We thank the Packard Foundation, Ellison Medical Foundation and NSF graduate research fellowship to B.D., and the Center for Brains, Minds and Machines, CCF-1231216 to N.K. and R.S. for funding this research;

Keywords: neuroscience - cognition - visual cortex - development -



Author: Ben Deen, Hilary Richardson, Daniel Dilks, Atsushi Takahashi, Boris Keil, Lawrence L. Wald, Nancy Kanwisher, Rebecca Saxe,

Source: https://open.library.emory.edu/



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