ABSTRACT
This chapter describes that certain inconsistencies began to be apparent towards the end of the second phase in Sigmund Freud's view of the mental apparatus and its functioning. While limitations of the topographical model are pointed out in the chapter, it deals with the fact that the model was not completely replaced by the structural model of the third phase of psychoanalysis. Freud's clinical experience had led him inevitably to the notion of the second censorship, and to the attribution of dynamically unconscious properties to some of the contents of the Preconscious. Freud became increasingly aware that the criteria of consciousness and unconsciousness alone were unsatisfactory as a basis for a psychoanalytic theory of mental functioning, for the differentiation of distinct systems and organizations within the mental apparatus, and for differentiating pathological states. When Freud came to attempt to formulate his understanding of psychotic phenomena, he leaned heavily on his second-phase formulations of the libido theory.
