Developmental Trends in Mother-Infant Interaction from 4-Months to 42-Months : Using an Observation Technique
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<b>Background: </b>It is clear that early social interaction follows from mother-infant interaction after pregnancy. Many researchers have illuminated this interaction in the first years of life. Most common mother-infant interaction is the <i>attachment behavior</i> of an infant. The Japan Children’s Study (JCS) development psychology group hypothesis is that the early mother-infant interaction will predict later social behaviors. But the method applied to evaluate this interaction mainly comes from the evaluation of the whole observation situation and is dependent upon the <i>coder</i>. We applied a new observational method that checked the on/off status of behavior and recorded sequentially.<BR><b>Methods: </b>Using a semi-structured observation setting as our method, we analyzed the developmental change of mother-infant interaction within a <i>toy situation</i>.<BR><b>Results: </b>The result indicated that mother-infant interaction with a toy altered at around 9-months and is salient to the usual developmental change of <i>joint attention</i>. Additionally <i>cluster analysis</i> suggested that the developmental pattern is divided into two clusters. This is the first report on a developmental pattern of joint attention.<BR><b>Conclusions: </b>These results indicated that the developmental trend of gaze direction and vocalization is one candidate of measure for evaluating the mother infant social interaction from the point of joint attention.
- Journal of Epidemiology
Journal of Epidemiology 20, S427-S434, 2010-02-01
Japan Epidemiological Association