Categorical Perception of Facial Emotions in Infancy.
Journal
Infancy : the official journal of the International Society on Infant Studies
ISSN: 1532-7078
Titre abrégé: Infancy
Pays: United States
ID NLM: 100890607
Informations de publication
Date de publication:
Mar 2019
Mar 2019
Historique:
received:
20
04
2018
revised:
23
10
2018
accepted:
02
11
2018
entrez:
18
7
2020
pubmed:
1
3
2019
medline:
1
3
2019
Statut:
ppublish
Résumé
Categorical perception, indicated by superior discrimination between stimuli that cross categorical boundaries than between stimuli within a category, is an efficient manner of classification. The current study examined the development of categorical perception of emotional stimuli in infancy. We used morphed facial images to investigate whether infants find contrasts between emotional facial images that cross categorical boundaries to be more salient than those that do not, while matching the degree of differences in the two contrasts. Five-month-olds exhibited sensitivity to the categorical boundary between sadness and disgust, between happiness and surprise, as well as between sadness and anger but not between anger and disgust. Even 9-month-olds failed to exhibit evidence of a definitive category boundary between anger and disgust. These findings indicate the presence of discrete boundaries between some, but not all, of the basic emotions early in life. Implications of these findings for the major theories of emotion representation are discussed.
Identifiants
pubmed: 32677204
doi: 10.1111/infa.12275
pmc: PMC9583889
mid: NIHMS1839521
doi:
Types de publication
Journal Article
Langues
eng
Pagination
139-161Subventions
Organisme : NICHD NIH HHS
ID : R01 HD075829
Pays : United States
Organisme : Eunice Kennedy Shriver National Institute of Child Health and Human Development
ID : HD075829
Informations de copyright
© International Congress of Infant Studies (ICIS).
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