Visual category representations in the infant brain

Author(s)

Siying Xie, Stefanie Hoehl, Merle Moeskops, Ezgi Kayhan, Christian Kliesch, Bert Turtleton, Moritz Koster, Radoslaw M. Cichy

Abstract

Visual categorization is a human core cognitive capacity

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² that depends on the development of visual category representations in the infant brain.

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⁷ However, the exact nature of infant visual category representations and their relationship to the corresponding adult form remains unknown.

⁸ Our results clarify the nature of visual category representations from electroencephalography (EEG) data in 6- to 8-month-old infants and their developmental trajectory toward adult maturity in the key characteristics of temporal dynamics,

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⁹ representational format,

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¹² and spectral properties.

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¹⁴ Temporal dynamics change from slowly emerging, developing representations in infants to quickly emerging, complex representations in adults. Despite those differences, infants and adults already partly share visual category representations. The format of infants’ representations is visual features of low to intermediate complexity, whereas adults’ representations also encode high-complexity features. Theta band activity contributes to visual category representations in infants, and these representations are shifted to the alpha/beta band in adults. Together, we reveal the developmental neural basis of visual categorization in humans, show how information transmission channels change in development, and demonstrate the power of advanced multivariate analysis techniques in infant EEG research for theory building in developmental cognitive science.

Organisation(s)

Department of Developmental and Educational Psychology

External organisation(s)

Freie Universität Berlin (FU), Universität Potsdam, University Hospital Regensburg, Humboldt-Universität zu Berlin, Charité – Universitätsmedizin Berlin, Max-Planck-Institut für Kognitions- und Neurowissenschaften

Journal

Current Biology

Volume

32

Pages

5422-5432.e6

No. of pages

18

ISSN

0960-9822

DOI

https://doi.org/10.1016/j.cub.2022.11.016

Publication date

12-2022

Peer reviewed

Yes

Austrian Fields of Science 2012

501005 Developmental psychology

Keywords

ASJC Scopus subject areas

General Agricultural and Biological Sciences, General Biochemistry,Genetics and Molecular Biology, General Neuroscience

Portal url

https://ucrisportal.univie.ac.at/en/publications/e5850319-ba3f-473f-9ee5-7a37c92112f3