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Brain Cogn. 2007 Jun;64(1):30-41. Epub 2006 Dec 13.

Developmental changes in infants' processing of happy and angry facial expressions: a neurobehavioral study.

Author information

1
Centre for Brain and Cognitive Development, Birkbeck College, University of London, UK. t.grossmann@bbk.ac.uk

Abstract

Event-related brain potentials were measured in 7- and 12-month-old infants to examine the development of processing happy and angry facial expressions. In 7-month-olds a larger negativity to happy faces was observed at frontal, central, temporal and parietal sites (Experiment 1), whereas 12-month-olds showed a larger negativity to angry faces at occipital sites (Experiment 2). These data suggest that processing of these facial expressions undergoes development between 7 and 12 months: while 7-month-olds exhibit heightened sensitivity to happy faces, 12-month-olds resemble adults in their heightened sensitivity to angry faces. In Experiment 3 infants' visual preference was assessed behaviorally, revealing that the differences in ERPs observed at 7 and 12 months do not simply reflect differences in visual preference.

PMID:
17169471
DOI:
10.1016/j.bandc.2006.10.002
[Indexed for MEDLINE]

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