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Direct linkFogel, Alan; Hsu, Hui-Chin; Shapiro, Alyson F.; Nelson-Goens, G. Christina; Secrist, Cory – Developmental Psychology, 2006
Different types of smiling varying in amplitude of lip corner retraction were investigated during 2 mother-infant games--peekaboo and tickle--at 6 and 12 months and during normally occurring and perturbed games. Using Facial Action Coding System (FACS), infant smiles were coded as simple (lip corner retraction only), Duchenne (simple plus cheek…
Descriptors: Infants, Play, Nonverbal Communication, Games
Peer reviewedDickson, K. Laurie; Walker, Heather; Fogel, Alan – Developmental Psychology, 1997
This study examined the relationship between smile type (basic, Duchenne, duplay) and play type (object, physical, vocal, book reading) during parent-infant videotaped interactions at home. Loglinear analyses revealed that different types of smiles occurred during different types of play more often than expected if distributed equally. Different…
Descriptors: Comparative Analysis, Facial Expressions, Fathers, Infant Behavior
