Malerstein A J, Ahern M M
Am J Psychother. 1979 Jan;33(1):107-18. doi: 10.1176/appi.psychotherapy.1979.33.1.107.
Psychonalytic and Piagetian findings are bridged by understanding character structure. Social cognition of the three character types corresponds to three phase of cognitive development: Symbolic, Intuitive, and (Concrete) Operational. A child constructs his supergo by coordinating his perceptions of his caretaking as he coordinates other perceptions in the Operational Period.