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Representational similarity precedes category selectivity in the developing ventral visual pathway
Name
nihms-1038468.pdf
Description
Accepted version
Size
1.51 MB
Format
Adobe PDF
Checksum (MD5)
d34507aa452fd76fb5e3f53c24b71ea0
Author(s)
Cohen, Michael A
Dilks, Daniel D
Koldewyn, Kami
Weigelt, Sarah
Feather, Jenelle
Kell, Alexander JE
Keil, Boris
Fischl, Bruce
Zöllei, Lilla
Wald, Lawrence
Date Issued
2019
Journal
NeuroImage
Publisher
Elsevier BV
Version
Author's final manuscript
Abstract
© 2019 Many studies have investigated the development of face-, scene-, and body-selective regions in the ventral visual pathway. This work has primarily focused on comparing the size and univariate selectivity of these neural regions in children versus adults. In contrast, very few studies have investigated the developmental trajectory of more distributed activation patterns within and across neural regions. Here, we scanned both children (ages 5–7) and adults to test the hypothesis that distributed representational patterns arise before category selectivity (for faces, bodies, or scenes) in the ventral pathway. Consistent with this hypothesis, we found mature representational patterns in several ventral pathway regions (e.g., FFA, PPA, etc.), even in children who showed no hint of univariate selectivity. These results suggest that representational patterns emerge first in each region, perhaps forming a scaffold upon which univariate category selectivity can subsequently develop. More generally, our findings demonstrate an important dissociation between category selectivity and distributed response patterns, and raise questions about the relative roles of each in development and adult cognition.
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
10.1016/j.neuroimage.2019.05.010
