ABSTRACT
This paper draws on the central early developmental achievement of personalization described in ‘Primitive Emotional Development’ (1945) (Chapter 2, this volume). Published in 1949, it elaborates the environmental conditions necessary for the infant’s integration of psyche and soma, with the mind as a specialized part of this overall organization. It also considers those conditions that lead to the mind as an unintegrated phenomenon, reflecting splitting, dissociation, and fragmentation. The trajectories from these elements
led Winnicott in other directions, psychosomatic illness and the study of precocious ego development perhaps being the most significant.
