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Early maternal mirroring predicts infant motor system activation during facial expression observation.

Rayson, H., Bonaiuto, J. J., Ferrari, P. F. and Murray, L. (2017) Early maternal mirroring predicts infant motor system activation during facial expression observation. Scientific Reports, 7 (1). 11738. ISSN 2045-2322

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To link to this item DOI: 10.1038/s41598-017-12097-w

Abstract/Summary

Processing facial expressions is an essential component of social interaction, especially for preverbal infants. In human adults and monkeys, this process involves the motor system, with a neural matching mechanism believed to couple self- and other-generated facial gestures. Here, we used electroencephalography to demonstrate recruitment of the human motor system during observation and execution of facial expressions in nine-month-old infants, implicating this system in facial expression processing from a very young age. Notably, examination of early video-recorded mother-infant interactions supported the common, but as yet untested, hypothesis that maternal mirroring of infant facial gestures is central to the development of a neural matching mechanism for these gestures. Specifically, the extent to which mothers mirrored infant facial expressions at two months postpartum predicted infant motor system activity during observation of the same expressions at nine months. This suggests that maternal mirroring strengthens mappings between visual and motor representations of facial gestures, which increases infant neural sensitivity to particularly relevant cues in the early social environment.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology
ID Code:72717
Publisher:Nature Publishing Group

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