This thesis elaborates a developmental pathway model from maternal depression and infant insecure attachment through adulthood and supports the role of attachment in the development of interpersonal vulnerability to depression in adolescence and adulthood. The thesis provides a background discussion of the interpersonal properties of depression and attachment. It proceeds then to discuss maternal depression in infancy, resulting infant insecurity, and the interpersonal consequences of insecure attachment outside of the family in the preschool and latency years. It also discusses the organization of vulnerability to depression during these periods, and concludes with a discussion of insecure attachment and subsequent depression in adolescence and adulthood. A summary, with concluding remarks regarding clinical implications of this model concludes the thesis.
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