Motion or emotion: Infants discriminate emotional biological motion based on low-level visual information.
Biological motion
Emotion
Eye tracking
Infancy
Journal
Infant behavior & development
ISSN: 1934-8800
Titre abrégé: Infant Behav Dev
Pays: United States
ID NLM: 7806016
Informations de publication
Date de publication:
11 2019
11 2019
Historique:
received:
09
01
2019
revised:
17
04
2019
accepted:
17
04
2019
pubmed:
22
5
2019
medline:
4
3
2020
entrez:
22
5
2019
Statut:
ppublish
Résumé
Infants' ability to discriminate emotional facial expressions and tones of voice is well-established, yet little is known about infant discrimination of emotional body movements. Here, we asked if 10-20-month-old infants rely on high-level emotional cues or low-level motion related cues when discriminating between emotional point-light displays (PLDs). In Study 1, infants viewed 18 pairs of angry, happy, sad, or neutral PLDs. Infants looked more at angry vs. neutral, happy vs. neutral, and neutral vs. sad. Motion analyses revealed that infants preferred the PLD with more total body movement in each pairing. Study 2, in which infants viewed inverted versions of the same pairings, yielded similar findings except for sad-neutral. Study 3 directly paired all three emotional stimuli in both orientations. The angry and happy stimuli did not significantly differ in terms of total motion, but both had more motion than the sad stimuli. Infants looked more at angry vs. sad, more at happy vs. sad, and about equally to angry vs. happy in both orientations. Again, therefore, infants preferred PLDs with more total body movement. Overall, the results indicate that a low-level motion preference may drive infants' discrimination of emotional human walking motions.
Identifiants
pubmed: 31112859
pii: S0163-6383(19)30011-6
doi: 10.1016/j.infbeh.2019.04.006
pmc: PMC6859203
mid: NIHMS1529806
pii:
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
101324Subventions
Organisme : NICHD NIH HHS
ID : R01 HD082844
Pays : United States
Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.
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