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1.
Ruth Brookman Marina Kalashnikova Janet Conti Nan Xu Rattanasone Kerry-Ann Grant Katherine Demuth Denis Burnham 《Child development》2020,91(6):e1211-e1230
This longitudinal study investigated the effects of maternal emotional health concerns, on infants’ home language environment, vocalization quantity, and expressive language skills. Mothers and their infants (at 6 and 12 months; 21 mothers with depression and or anxiety and 21 controls) provided day-long home-language recordings. Compared with controls, risk group recordings contained fewer mother–infant conversational turns and infant vocalizations, but daily number of adult word counts showed no group difference. Furthermore, conversational turns and infant vocalizations were stronger predictors of infants’ 18-month vocabulary size than depression and anxiety measures. However, anxiety levels moderated the effect of conversational turns on vocabulary size. These results suggest that variability in mothers’ emotional health influences infants’ language environment and later language ability. 相似文献
2.
Jenalee R. Doom Sheila Gahagan Patricia L. East Pamela Encina Jorge Delva Betsy Lozoff 《Child development》2020,91(3):e545-e562
This study tested whether maternal responsiveness moderated or mediated pathways from iron deficiency (ID) at 12–18 months to adolescent behavior problems. Participants were part of a large Chilean cohort (N = 933). Iron status was assessed at 12 and 18 months. Maternal responsiveness was assessed at 9 months and 5 years. Parents reported their child’s symptomology at 5 years, 10 years, and adolescence (11–17 years; M = 14.4). Structural equation modeling identified a previously unrecognized pathway by which child externalizing problems and negative maternal responsiveness at 5 years mediated associations between ID at 12–18 months and adolescent internalizing, externalizing, and social problems. Positive maternal responsiveness in infancy did not buffer those with ID anemia from developing 5-year internalizing problems. 相似文献