Yes, the development of self psychology by Heinz Kohut can be regarded as a significant paradigm shift in psychoanalysis.
Self psychology emerged in the mid-twentieth century as a response to some of the limitations and criticisms of traditional psychoanalytic theory, particularly its emphasis on the Oedipus complex and the importance of conflict and repression in psychological development.
Kohut's approach to self psychology emphasized the importance of the patient's sense of self and their need for empathy and mirroring from the therapist. Kohut argued that the analyst's role was to help the patient develop a stronger and more cohesive sense of self, rather than simply interpreting their unconscious conflicts and desires.
This emphasis on the self and the role of the analyst in supporting its development represented a significant departure from traditional psychoanalytic theory and practice. It also had a significant impact on the field of psychotherapy more broadly, with many therapists incorporating self psychology ideas and techniques into their work.
Overall, the development of self psychology by Heinz Kohut can be seen as a significant paradigm shift in psychoanalysis, and an important contribution to our understanding of the therapeutic process.