Abstract
The constructivist perspective has shed new light on the conception of psychopathology and the practice of psychotherapy,
surmounting the shortcomings of behaviorism and rationalist cognitive thought, by abandoning the empiricist principle of
associationism. In this field, Vittorio Guidano introduced the Cognitive Post -Rationalist model, influenced by attachment
theory, evolutionary epistemology, complex systems theory, and the prevalence of abstract mental processes proposed by
Hayeck. Guidano conceives the personal system as a self-organized entity, in constant development. The role of the post -
rationalist therapist is to strategically upset the system in search of newer and more flexible ways to construct personal
experience.