Читать книгу Developmental Psychopathology - Группа авторов - Страница 112

Most attachment research has focused exclusively on environmental predictors of attachment security like caregiving, which have been supported by several twin studies. Bokhorst and colleagues (2003) found that more than half of the variance in attachment security was attributed to twins’ shared environment, with 48% being attributed to the non‐shared environment. However, Fearon and colleagues (2014) documented a high rate of heritability among adolescents! The authors suggest that adolescence is a phase of reorganization during which attachment changes from predominantly behavioral to predominantly cognitive, and that genetic factors are particularly influential during this time. Similarly, research examining genetic links to dimensions of attachment anxiety and avoidance suggest that about 40% of the variability in attachment security is attributable to genes. Critically, several studies have noted that this genetic influence is strongest in relation to attachment anxiety (Picardi, Fagnani, Nistico, & Stazi, 2011).