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Title: An initial investigation of neonatal neuroanatomy, caregiving, and levels of disorganized behavior
Authors: Rifkin-Graboi A
Tan HM
Shaun GKY 
Sim LW
Sanmugam S
Chong YS 
Tan KH 
Shek L 
Gluckman PD 
Chen H 
Fortier M 
Meaney MJ 
Qiu A 
Keywords: Amygdala
Attachment disorganization
Maternal sensitivity
Issue Date: 20-Aug-2019
Publisher: National Academy of Sciences
Citation: Rifkin-Graboi A, Tan HM, Shaun GKY, Sim LW, Sanmugam S, Chong YS, Tan KH, Shek L, Gluckman PD, Chen H, Fortier M, Meaney MJ, Qiu A (2019-08-20). An initial investigation of neonatal neuroanatomy, caregiving, and levels of disorganized behavior. Proc Natl Acad Sci U S A 116 (34) : 16787-16792. ScholarBank@NUS Repository.
Abstract: Attachment disorganization is a risk factor for difficulties in attention, social relationships, and mental health. Conceptually, attachment disorganization may indicate a breakdown in fear regulation resulting from repeated exposure to frightening maternal care. In addition, past research has examined the influence of stress-inducing contextual factors and/or child factors upon the development of disorganization. However, no past work has assessed whether infant neuroanatomy, important to stress regulation, moderates the association between maternal care and levels of disorganized behavior. Here, utilizing data from a subsample of 82 dyads taking part in the “Growing Up in Singapore towards Healthy Outcomes” (GUSTO) cohort, we assessed the prediction from maternal sensitive caregiving at 6 mo and levels of attachment disorganization at 1.5 y, as moderated by hippocampal and amygdala volume determined within the first 2 weeks of life. Results indicate a significant interaction between neonatal left hippocampal volume and maternal sensitivity upon levels of disorganized behavior. Although these results require substantiation in further research, if replicated, they may enable new strategies for the identification of processes important to child mental health and points for intervention. This is because neonatal neuroanatomy, as opposed to genetic variation and sociodemographic risk, may be more directly linked to stress responses within individuals. © 2019 National Academy of Sciences. All rights reserved.
Source Title: Proc Natl Acad Sci U S A
ISSN: 0027-8424
DOI: 10.1073/pnas.1900362116
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