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Ecological contributions to attachment transmission were studied in a sample of 64 adolescent mother-infant dyads. Maternal sensitivity was assessed when infants were 6 and 10 months old, and infant security was assessed at 15 and 18 months. Maternal attachment state of mind was measured with the Adult Attachment Interview (AAI) after the 1st assessment. Ecological variables considered were maternal education and depression, paternal support, and infant maternal grandmother support. Results indicated that when the contribution of ecological variables was statistically controlled for, sensitivity was a significant mediator and state of mind no longer contributed to infant security. Sensitivity also mediated an association between maternal education and infant attachment, suggesting that attachment transmission is embedded in a more global process of infant attachment development.

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This article compares an expanded descriptive measure of maternal mind-mindedness to the original measure. We included assessments of the valence and richness of descriptions given by 106 mothers when asked to talk about their 18-month-old child (55 boys), in addition to assessing the proportion of mind-related descriptors. Contrary to previous findings, the proportion of mental descriptors was not associated with maternal sensitivity. However, the expanded measure revealed a significant positive link between positive mind-mindedness and maternal sensitivity, and between richness of the description and maternal sensitivity. We then investigated predictors of positive maternal mind-mindedness. Maternal state of mind regarding past attachment experiences, psychological adjustment, and perception of the child's temperament were considered. The findings revealed that attachment state of mind and parenting stress constitute independent predictors of positive mind-mindedness. These findings suggest that mind-mindedness is associated not only with parental state of mind but also to current factors related to parenthood.

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