Interaction Structures in the Psychodynamic Therapy of a Patient with Borderline Personality Disorder

Interaction structures are repetitive patterns of interac-tion between therapist and patient, even if they are not conscious of it. In empirical research, they help to un-derstand how the process of change in psychotherapy is established. In this sense, the current research used 68 sessions of psychoanalytic psychotherapy in a young patient with Borderline Personality Disorder (BPD) to identify the interaction structures and their correlation with different moments of treatment. The sessions were recorded on video and later encoded through the Psy-chotherapy Process Q-Set (PQS) by pairs of judges trained in Q-Sort methodology. A factor analysis of the Q-type of main components was performed based on these data, which indicated four interaction structures. Factor 1: Collaborative; factor 2: Resistance; factor 3: Alliance/Rupture; and factor 4: Support/Encornment. The structures indicated the interaction became a work of maintenance of the collaborative interaction through an empathic position of the therapist, focused on recogniz-ing the patient's internal states. Despite the collaborative work, resistance also appeared as a repetitive pattern. The therapist became more directive with more structured interventions questioning the patient, thus, contributing to the development of the capacity of mentalization. Implications for the psychotherapeutic process and in-dications for future studies are presented to contribute to the comprehension of the treatment of patients with BPD in psychodynamic psychotherapy.