Experience With Face Groups Impacts Face Processing, but Not Face Differentiation in 6‐ and 9‐Month‐Old Infants

Bibliographic Data

ID9685980
AuthorsGrace Wallsinger (0000-0002-8088-949X, Department of Psychology University of Florida Gainesville Florida USA), Maeve R Boylan (0000-0002-3698-3569, Department of Psychology University of Florida Gainesville Florida USA), Jessica Sanches Braga Figueira (0000-0002-9773-1445, Department of Psychology University of Florida Gainesville Florida USA), Ryan Barry‐Anwar (0000-0001-8659-6885, Department of Psychology University of Florida Gainesville Florida USA), Gabriella Silva (0000-0003-0896-2223, Department of Psychology University of Florida Gainesville Florida USA), Angeliki Keil (0000-0002-4064-1924, Department of Psychology University of Florida Gainesville Florida USA), Lisa S Scott (0000-0002-8136-891X, Department of Psychology University of Florida Gainesville Florida USA, corresponding author)
Year2025
Volume67
Issue3
Pagese70050-e70050
Publication date2025-05-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueDevelopmental Psychobiology (JOURNAL)
Journal identifiersISSN: 0012-1630 • E-ISSN: 1098-2302
PublisherWiley (PUBLISHER • GB)
DOI10.1002/dev.70050
PMID40415701
OpenAlexW4410753790
LanguageEN
References cited63

The present study examined neural differentiation of faces from familiar and unfamiliar race groups at 6 and 9 months of age. Two of four face groups (one familiar and one unfamiliar) were shown to infants based on parent reports of infant face experience. Infants completed a fast periodic visual stimulation (FPVS) EEG task in which separate blocks of familiar and unfamiliar face groups, equated for low‐level visual differences, were presented at a rate of 6 Hz. Within each block, a different individual was presented at 1.2 Hz (every fifth face). A medial occipital 6 Hz neural response was greater for faces from the familiar compared to the unfamiliar group, which was primarily driven by the 6‐month‐old age group. A robust occipital 1.2 Hz response was present for both ages and for both familiar and unfamiliar face groups, suggesting individual‐level face differentiation. However, the topography of the 1.2 Hz response differed for 6‐ and 9‐month‐olds and suggests that face differentiation becomes increasingly right lateralized with age. The present results highlight the importance of face experience on visuocortical brain responses associated with face processing (6 Hz) and suggest that face differentiation (1.2 Hz) is present by 6 months of age and not impacted by face familiarity

Audiology · Developmental psychology · Electroencephalography · Face (sociological concept) · Face perception · Face-to-face · Perception · Task (project management) · Visual perception · Evolutionary Psychology and Human Behavior · Face recognition and analysis · Face Recognition and Perception · Medicine · Neuroscience · Psychology

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