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  1. Article

    Open Access

    Attachment and Political Personality are Heritable and Distinct Systems, and Both Share Genetics with Interpersonal Trust and Altruism

    The attachment and caregiving domains maintain proximity and care-giving behavior between parents and offspring, in a way that has been argued to shape people’s mental models of how relationships work, resulti...

    Thomas Haarklau Kleppesto, Nikolai Olavi Czajkowski, Olav Vassend in Behavior Genetics (2024)

  2. Article

    Open Access

    Effects of a school-based intervention on levels of anxiety and depression: a cluster-randomized controlled trial of the MindPower program in ten high schools in Norway

    The previous decades have shown increased symptoms of depression and anxiety among adolescents. To promote mental health and reduce mental illness, the government of Norway has, as in other countries, pledged ...

    Gry Anette Sælid, Nikolai Olavi Czajkowski, Leif Edvard Aarø in BMC Psychology (2022)

  3. Article

    Open Access

    Effectiveness of attachment-based family therapy compared to treatment as usual for depressed adolescents in community mental health clinics

    Major Depressive Disorder (MDD) is a disabling mood disorder, profoundly affecting a large number of adolescent’s quality of life. To date, no obvious treatment of choice for MDD in adolescents is available an...

    Luxsiya Waraan, Erling W. Rognli in Child and Adolescent Psychiatry and Mental… (2021)

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    Article

    Genetically Informative Mediation Modeling Applied to Stressors and Personality-Disorder Traits in Etiology of Alcohol Use Disorder

    A statistical mediation model was developed within a twin design to investigate the etiology of alcohol use disorder (AUD). Unlike conventional statistical mediation models, this biometric mediation model can ...

    Tom Rosenström, Nikolai Olavi Czajkowski, Eivind Ystrom in Behavior Genetics (2019)

  5. No Access

    Article

    Genetic and Environmental Structure of DSM-IV Criteria for Antisocial Personality Disorder: A Twin Study

    Results from previous studies on DSM-IV and DSM-5 Antisocial Personality Disorder (ASPD) have suggested that the construct is etiologically multidimensional. To our knowledge, however, the structure of genetic...

    Tom Rosenström, Eivind Ystrom, Fartein Ask Torvik in Behavior Genetics (2017)