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@article{1215053, author = {Hazen, Nancy and Allen, Sydnye and Christopher, Caroline and Umemura, Tomotaka and Jacobvitz, Deborah}, article_number = {3}, doi = {http://dx.doi.org/10.1017/S0954579414000893}, keywords = {attachment; disorganized attachment; frightening/frightened maternal behavior; nonmaternal care}, language = {eng}, issn = {0954-5794}, journal = {Development and Psychopathology}, title = {Very extensive nonmaternal care predicts mother–infant attachment disorganization: Convergent evidence from two samples}, url = {http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9351063&fulltextType=RA&fileId=S0954579414000893}, volume = {27}, year = {2015} }
TY - JOUR ID - 1215053 AU - Hazen, Nancy - Allen, Sydnye - Christopher, Caroline - Umemura, Tomotaka - Jacobvitz, Deborah PY - 2015 TI - Very extensive nonmaternal care predicts mother–infant attachment disorganization: Convergent evidence from two samples JF - Development and Psychopathology VL - 27 IS - 3 SP - 649-661 EP - 649-661 SN - 09545794 KW - attachment KW - disorganized attachment KW - frightening/frightened maternal behavior KW - nonmaternal care UR - http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9351063&fulltextType=RA&fileId=S0954579414000893 L2 - http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9351063&fulltextType=RA&fileId=S0954579414000893 N2 - We examined whether a maximum threshold of time spent in nonmaternal care exists, beyond which infants have an increased risk of forming a disorganized infant-mother attachment. The hours per week infants spent in nonmaternal care at 7-8 months were examined as a continuous measure and as a dichotomous threshold (over 40, 50 and 60 hours/week) to predict infant disorganization at 12-15 months. Two different samples (Austin and NICHD) were used to replicate findings and control for critical covariates: mothers’ unresolved status and frightening behavior (assessed in the Austin sample, N=125), quality of nonmaternal caregiving (assessed in the NICHD sample, N=1,135), and family income and infant temperament (assessed in both samples). Only very extensive hours of nonmaternal care (over 60 hours/week) and mothers’ frightening behavior independently predicted attachment disorganization. A polynomial logistic regression performed on the larger NICHD sample indicated that the risk of disorganized attachment exponentially increased after exceeding 60 hours/week. Also, very extensive hours of nonmaternal care only predicted attachment disorganization after age 6 months (not prior). Findings suggest that during a sensitive period of attachment formation, infants who spend over 60 hours/week in nonmaternal care may be at an increased risk of forming a disorganized attachment. ER -
HAZEN, Nancy, Sydnye ALLEN, Caroline CHRISTOPHER, Tomotaka UMEMURA and Deborah JACOBVITZ. Very extensive nonmaternal care predicts mother–infant attachment disorganization: Convergent evidence from two samples. \textit{Development and Psychopathology}. 2015, vol.~27, No~3, p.~649-661. ISSN~0954-5794. doi:10.1017/S0954579414000893.
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