Self-Trust and Attachment: An Affective Condition for the True Self and Mentalization

This article introduces self-trust as a distinct affective construct within attachment theory, defined as the affect that emerges from the self’s perception that its modes of satisfying attachment conditions are both effective and accepted. Building on Winnicott’s account of the true self and Fonagy’s theory of mentalization, the paper argues that self-trust functions as a structural condition for both spontaneous self-expression and reflective functioning. Whereas shame signals the perceived invalidation of the self’s way of being-in-relation, self-trust signals its relational legitimacy. By articulating self-trust as an affective index of acceptance within attachment relationships, the article clarifies how affective security operates internally within the self, beyond the mere absence of shame. This conceptualization offers an integrative framework that bridges developmental, relational, and mentalization-based perspectives, and provides a precise account of how attachment experiences support authenticity and psychological integration.