Our goal is to integrate research and clinical practice. On this page you will find an overview of research by our team.


  • Nordahl, H., Havnen, A., Hansen, B., Öst, L-G., & Kvale, G. (2018). Sleep disturbances in treatment-seeking OCD-patients: Changes after concentrated exposure treatment. Scandinavian Journal of Psychology, 59(2), 186-191. doi: 10.1111/sjop.12417
  • Davíðsdóttir, S., Sigurjónsdóttir, O., Ludvigsdóttir, J.S, Hansen, B., Laukvik, I.L., Hagen, K., Björgvinsson, T., Kvale, G. (Submitted) Implementation of the Bergen 4-day treatment for OCD in Iceland. Journal of Clinical Neuropsychiatry.
  • Eilertsen, T., Hansen, B., Kvale, G., Holm, S E. H.; Hagen, K. and Solem,S. (Submitted) Psychometric Properties of the Yale-Brown Obsessive-Compulsive Scale (19 Items) Submitted to Psychological Assessment
  • Hansen, B., Kvale, G., Hagen, K., Havnen, A. and Öst, L-G. (Submitted) The Bergen 4-day format for OCD: Four years follow-up of concentrated ERP in a clinical mental health setting. Frontiers in Psychiatry
  • Hansen, B., Hagen, K., Öst, L-G., Solem, S. and Kvale, G. (in revision) The Bergen 4-day OCD treatment delivered in a group setting: Long term follow up. Frontiers in Psychology
  • Hansen, B., Kvale,G., Hagen,K., Hjelle, K.M., Bø, B., Solem, S., and Öst, L-G ( Submitted) The Bergen 4-day treatment for Panic Disorder: A pilot study. Frontiers in Psychology.
  • Holm, S.E.H., Hansen, ., Kvale, G., Eilertsen, T., Grøtte, T., and Solem. S. (in revision) Post-treatment predictors of follow-up status for obsessive-compulsive disorder treated with concentrated exposure therapy. Cogent Psychology
  • Holm, S.E.H., Hansen, B., Kvale, G., Eilertsen. T., Johnsen, B.H., Hystad, S.W, and Solem, S. (Submitted) Dispositional resilience in treatment-seeking patients with Obsessive-Compulsive Disorder and its association with treatment outcome. Journal of Clinical Neurpopsychiatry
  • Kvale, G., Hansen, B., Björgvinsson, T., Børtveit, T., Hagen, K., Haseth, S., Kristensen,U.B., Launes,G., Ressler,K.G., Solem,S., Strand, A., van den Heuvel, O.A., and Öst, L-G. (Submitted) Successfully treating 90 patients with Obsessive Compulsive Disorder in eight days: A novel clinical model for studying basic mechanisms of plasticity. BMC Psychiatry
  • Thorsen, A. L., Hagland, P., Radua, J., Mataix-Cols, D., Kvale, G., Hansen, B., & van den Heuvel, O. A. (2018). Emotional processing in obsessive-compulsive disorder: A systematic review and meta-analysis of 25 functional neuroimaging studies. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging.
  • Thorsen, A. L., Kvale, G., Hansen, B., van den Heuvel, O. A., (Accepted). Symptom dimensions in obsessive-compulsive disorder as predictors of neurobiology and treatment response. Current Treatment Options in Psychiatry. 
  • Thorsen, A.L. de Wit, S.J., de Vries, F. E., Cath., D. C., Veltman, D. J., van der Werf, Y. D., Mataix-Cols., D., Hansen, B., Kvale, G., & van den Heuvel., O. A. (In Revision). Emotion regulation in obsessive-compulsive disorder, unaffected siblings and unrelated healthy controls. Biological Psychiatry Cognitive Neuroscience and Neuroimaging.



  • Eilertsen, T., Hansen, B., Kvale, G., Abramowitz, J. S., Holm, S. E. H., & Solem, S. (2017). The Dimensional Obsessive-Compulsive Scale: Development and Validation of a Short Form (DOCS-SF). Front Psychol, 8, 1503. doi: 10.3389/fpsyg.2017.01503
  • Hagen, K., Solem, S., Opstad, H. B., Hansen, B., & Hagen, R. (2017). The role of metacognition and obsessive-compulsive symptoms in psychosis: an analogue study. BMC Psychiatry, 17, 233.
  • Fan, S., Cath, D. C., van der Werf, Y. D., de Wit, S., Veltman, D. J., & van den Heuvel, O. A. (2017). Trans-diagnostic comparison of response inhibition in Tourette’s disorder and obsessive-compulsive disorder. The World Journal of Biological Psychiatry, 1-11.
  • Havnen, A., Hansen, B., Öst, L. G., & Kvale, G. (2017). Concentrated ERP delivered in a group setting: A replication study. Behavioural and Cognitive Psychotherapy, 45, 530-536.
  • Fan, S., Cath, D. C., van den Heuvel, O. A., van der Werf, Y. D., Schöls, C., Veltman, D. J., & Pouwels, P. J. (2017). Abnormalities in metabolite concentrations in tourette’s disorder and obsessive-compulsive disorder—A proton magnetic resonance spectroscopy study. Psychoneuroendocrinology, 77, 211-217.
  • Myers, S. G., Grøtte, T., Haseth, S., Guzey, I. C., Hansen, B., Vogel, P. A., & Solem, S. (2017). The role of metacognitive beliefs about thoughts and rituals: A test of the metacognitive model of obsessive-compulsive disorder in a clinical sample. Journal of Obsessive-Compulsive and Related Disorders, 13, 1-6.
  • Zijlmans, J., Marhe, R., van der Ende, J., Verhulst, F. C., Popma, A., Tiemeier, H., & van den Heuvel, O. A. (2017). Children with obsessive-compulsive symptomology in the general population: different subtypes?. Journal of Developmental & Behavioral Pediatrics. 38, 476-482.


  • Riise, E. N., Kvale, G., Öst, L. G., Skjold, S. H., Hansen, H., & Hansen, B. (2016). Concentrated exposure and response prevention for adolescents with obsessive-compulsive disorder: An effectiveness study. Journal of Obsessive-Compulsive and Related Disorders, 11, 13-21.
  • Hagen, K., Solem, S., Opstad, H. B., Vogel, P. A., Ottesen Kennair, L. E., Kvale, G., & Hansen, B. (2016). Therapist variability in the task/goal dimension of the early working alliance predicts outcome in exposure and response prevention treatment for obsessive-compulsive disorder. Clinical Neuropsychiatry, 6, 94-99.
  • Grøtte, T., Solem, S., Myers, S. G., Hjemdal, O., Vogel, P. A., Güzey, I. C., ... & Fisher, P. (2016). Metacognitions in obsessive-compulsive disorder: A psychometric study of the Metacognitions Questionnaire-30. Journal of Obsessive-Compulsive and Related Disorders, 11, 82-90.
  • Öst, L. G., Riise, E. N., Wergeland, G. J., Hansen, B., & Kvale, G. (2016). Cognitive behavioral and pharmacological treatments of OCD in children: a systematic review and meta-analysis. Journal of Anxiety Disorders, 43, 58-69.
  • Solem, S., Husby, Å. S., Håland, Å. T., Launes, G., Hansen, B., Vogel, P. A., & Hagen, R. (2016). The University of Rhode Island change assessment as predictor of treatment outcome and dropout in outpatients with obsessive-compulsive disorder treated with exposure and response prevention. Psychotherapy and Psychosomatics, 85, 119-120.
  • Øvrehus, E. H., Martinsen, A. S., Hagen, K., Hansen, B., & Kvale, G. (2016). Prevalence of personality disorders in patients with OCD and relationship to treatment outcome. Clinical Neuropsychiatry, 6, 130-135.




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