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Infant responses to maternal still-face at 4 and 9 months.
Infant Behav Dev. 2008 Dec; 31(4):570-7.IB

Abstract

This study investigated developmental changes in infant responses to maternal still-face (SF) situations. Infants (21 males and 25 females) of Japanese mothers were observed in a face-to-face SF paradigm, comprising four phases (normal/SF/normal/SF), at two infant ages (4 and 9 months). The infants' facial expression, gaze direction, and vocalization were coded in both SF and normal interaction conditions. The results indicated that infants at both ages showed a decrease in displaying positive facial expression and gazing at their mothers during SF conditions. The 4-month-old displayed emotional expression and directed their gaze toward their mothers more frequently than the 9-month-old. However, the 9-month-old vocalized more often in SF situations, attempting to elicit responses from their mothers. The "carry-over" effect was observed only in 9-month-old. The results were discussed in the context of developmental changes in infants' social skills to cope with an emotionally stressful situation.

Authors+Show Affiliations

Ritsumeikan University, 56-1 Tojiin, Kitamach Kita-ku, Kyoto 603-8577, Japan. yato@lt.ritsumei.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18774176

Citation

Yato, Yuko, et al. "Infant Responses to Maternal Still-face at 4 and 9 Months." Infant Behavior & Development, vol. 31, no. 4, 2008, pp. 570-7.
Yato Y, Kawai M, Negayama K, et al. Infant responses to maternal still-face at 4 and 9 months. Infant Behav Dev. 2008;31(4):570-7.
Yato, Y., Kawai, M., Negayama, K., Sogon, S., Tomiwa, K., & Yamamoto, H. (2008). Infant responses to maternal still-face at 4 and 9 months. Infant Behavior & Development, 31(4), 570-7. https://doi.org/10.1016/j.infbeh.2008.07.008
Yato Y, et al. Infant Responses to Maternal Still-face at 4 and 9 Months. Infant Behav Dev. 2008;31(4):570-7. PubMed PMID: 18774176.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Infant responses to maternal still-face at 4 and 9 months. AU - Yato,Yuko, AU - Kawai,Masatoshi, AU - Negayama,Koichi, AU - Sogon,Shunya, AU - Tomiwa,Kiyotaka, AU - Yamamoto,Hatsumi, Y1 - 2008/09/05/ PY - 2007/02/14/received PY - 2008/02/03/revised PY - 2008/07/19/accepted PY - 2008/9/9/pubmed PY - 2009/8/12/medline PY - 2008/9/9/entrez SP - 570 EP - 7 JF - Infant behavior & development JO - Infant Behav Dev VL - 31 IS - 4 N2 - This study investigated developmental changes in infant responses to maternal still-face (SF) situations. Infants (21 males and 25 females) of Japanese mothers were observed in a face-to-face SF paradigm, comprising four phases (normal/SF/normal/SF), at two infant ages (4 and 9 months). The infants' facial expression, gaze direction, and vocalization were coded in both SF and normal interaction conditions. The results indicated that infants at both ages showed a decrease in displaying positive facial expression and gazing at their mothers during SF conditions. The 4-month-old displayed emotional expression and directed their gaze toward their mothers more frequently than the 9-month-old. However, the 9-month-old vocalized more often in SF situations, attempting to elicit responses from their mothers. The "carry-over" effect was observed only in 9-month-old. The results were discussed in the context of developmental changes in infants' social skills to cope with an emotionally stressful situation. SN - 1934-8800 UR - https://www.unboundmedicine.com/medline/citation/18774176/Infant_responses_to_maternal_still_face_at_4_and_9_months_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0163-6383(08)00074-X DB - PRIME DP - Unbound Medicine ER -