A complex, Nature-, and Adventure Therapy - integrated Schema Therapeutic program (N-ABST) and a related efficacy study was launched in 2022 April at the Psychotherapy Department, at Semmelweis University. The participants had the opportunity of having outdoor, experience based group processes – seven full days in a month - in addition to the classic Schema Therapy (ST) sessions. According to the study design, 4-week long traditional thematic ST programs and 4-week long N-ABST programs were taken place alternately.

Our aim was to compare the efficacy in a randomized, controlled design, short and medium terms. The participants of the programs and thus the target group of the research were adults, diagnosed mainly with Borderline Personality Disorder, inpatients in psychiatry.

This methodological innovation also meant the integration of two therapeutic teams in practice. When establishing the collaboration, we put emphasis on finding common points and understanding how N-AT contributes to schema therapy goals. During our joint work, it became clear that the elemental need for contact with nature enriched the schema therapy approach with a new basic need that was not included in it before. Measurements were taken before the start of the entire program and at the end of the 4-week cycle. Preliminary results are presented based on the Personality Inventory for DSM-5 - Hungarian Short Form (PID-5-HSF), and the Derogatis Symptom Checklist (SCL90).

In the N-ABST group (n=23) the PID5 “Dysinhibition” scale (p < .01, Cohen’s d = .636), and the “Negative Affectivity” scale (p < .05, Cohen’s d = .388) showed significantly lower scores after therapy. In the case of the “Detachment” we have found a tendency to decrease after the therapy. Regarding the comparison of the effectiveness of N-ABST and classical Schema Therapy - with the current state of analysis - there was a significant difference in the PID5 values for “Suspiciousness” and “Manipulativeness”. The former characteristic was reduced to a greater extent by the schema therapy, and the latter by the N-ABST therapy. Based on the SCL90, the N-ABST program resulted in a significant symptom reduction measured by the following subscales: somatization, obsessive compulsive, interpersonal sensitivity, depression, phobia. Global symptom severity also decreased significantly (p < .05, Cohen’s d = .588).

According to our results, Nature- Adventure Therapy enhanced Schema Therapy seems to be an innovative and efficient method in the psychotherapy of personality disorders. Besides the effectiveness, there is a great challenge to design programs that are sustainable and therefore serves therapy long term as well.

This study was supported by the National Research, Development and Innovation Office grant K 129195.

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