Further evidence for the role of the dopamine D4 receptor (DRD4) gene in attachment disorganization: interaction of the exon III 48-bp repeat and the -521 C/T promoter polymorphisms.

Abstract excerpt

In non-clinical low-risk populations 15% of infants show disorganized attachment behavior(1,2) with their caregivers in the Strange Situation,(3) a mildly stressful laboratory procedure testing infants' ability to cope with separation anxiety. Disorganization of early attachment has been primarily ascribed to inadequate parenting,(2,4,5) and has been associated with childhood behavior problems(6,7)and adolescent...

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