Mårten Tyrberg

Mårten Tyrberg


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Works at Department of Psychology
Visiting address Frescati hagväg 8
Postal address Psykologiska institutionen 106 91 Stockholm

About me

I work as a clinical psychologist/psychotherapist in an outpatient unit for patients with psychosis, at Västmanlands sjukhus Västerås. In the last few years, I have become more and more interested in applying psychological treatment in the context of inpatient wards. Specifically, I have studied Acceptance and Commitment Therapy (ACT) as applied to psychotic patients.


I teach students at the psychologist and psychotherapist programmes, mainly in psychological treatment for psychosis. I also teach in the psychiatry course, focusing on psychosis. In addition, I have been responsible for the self-awareness/self-therapy workshop for students at the psychotherapist programme.


My research project focuses on broad implementation of psychological treatment in psychiatric inpatient care. The overarching aim is to investigate if Acceptance & Commitment Therapy (ACT) is an effective method of treatment for acutely ill psychotic patients in inpatient care. ACT will be implemented partly as an individual treatment, and partly as an integrated part of the ward context more broadly, by educating and supervising psychiatric nurses. Individual treatment will be investigated in a pilot RCT, while the usefulness of the ACT model for nurses will be investigated in both quantitative and qualitative studies. A further study will investigate executive functioning deficits in patients with schizophrenia, using Relational Frame Theory (RFT). The aim is to better understand the obstacles that may occur in psychological treatment of psychosis. The project is a cooperation between Stockholm University and Region Vastmanland.


A selection from Stockholm University publication database
  • 2017. Mårten Tyrberg, Per Carlbring, Tobias Lundgren. Nordic Psychology 69 (2), 110-125

    Psychiatric inpatient care in Sweden is often described as lacking in content other than medication and mere containment. In an attempt to increase structured psychological content in the ward context, this study aims to investigate whether a brief form of acceptance and commitment therapy (ACT) is a feasible addition to standard care for psychotic inpatients. ACT has previously been administered to psychotic inpatients in the US, and the present study was an attempt at implementing this intervention in Sweden. In this feasibility study, 22 psychotic inpatients were randomized to one of two conditions: treatment as usual (TAU) or TAU plus an average of two ACT sessions. Measures of rehospitalization and values-based living were obtained before treatment, after treatment, and at four-month follow-up. Results indicate that participants in the TAU plus ACT group were rehospitalized at a lower rate than those who only received TAU (9% vs. 40%), though the difference was not statistically significant. Controlling for age, gender, and pretreatment values-based living scores, there was a significantly higher risk for TAU participants to be rehospitalized. There was a trend toward increased values-based living scores in the ACT group. These results suggest that it is feasible to add structured psychotherapeutic interventions to the existing care package at psychiatric inpatient wards in Sweden. However, the findings need to be explored in larger samples.

Show all publications by Mårten Tyrberg at Stockholm University

Last updated: July 6, 2018

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