Geir Arild Feigum Pedersen

Researcher - NORMENT part UiO
Image of Geir Arild Feigum Pedersen
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Visiting address Oslo Universitetssykehus HF - Ullevål Avdeling for psykoseforskning Bygg 49 0424 Oslo
Postal address OUS, Postboks 4956 Nydalen 0424 Oslo

Publications

  • Nysæter, Tor Erik; Hummelen, Benjamin; Christensen, Tore Buer; Eikenæs, Ingeborg Helene Ulltveit-Moe; Germans Selvik, Sara & Pedersen, Geir Arild Feigum [Show all 9 contributors for this article] (2022). The Incremental Utility of Criteria A and B of the DSM-5 Alternative Model for Personality Disorders for Predicting DSM-IV/DSM-5 Section II Personality Disorders. Journal of Personality Assessment. ISSN 0022-3891. doi: 10.1080/00223891.2022.2039166. Full text in Research Archive
  • Kvarstein, Elfrida Hartveit; Zahl, Kjell_Einar; Stänicke, Line Indrevoll; Pettersen, MS; Baltzersen, Åse-Line & Johansen, Merete Selsbakk [Show all 11 contributors for this article] (2021). Vulnerability of personality disorder during COVID-19 crises: a multicenter survey of mental and social distress among patients referred to treatment. Nordic Journal of Psychiatry. ISSN 0803-9488. doi: 10.1080/08039488.2021.1942980..
  • Pedersen, Geir Arild Feigum; Normann, Eivind; Eikenæs, Ingeborg Helene Ulltveit-Moe; Kvarstein, Elfrida Hartveit & Wilberg, Theresa (2021). Psychometric evaluation of the Norwegian Toronto Alexithymia Scale (TAS-20) in a multi-site clinical sample of patients with personality disorders and personality problems. Journal of Clinical Psychology. ISSN 0021-9762. doi: 10.1002/jclp.23270. Full text in Research Archive
  • Kvarstein, Elfrida Hartveit; Zahl, Kjell_Einar; Stänicke, Line Indrevoll; Pettersen, Mona Skjeklesæther; Baltzersen, Åse-Line & Johansen, Merete Selsbakk [Show all 11 contributors for this article] (2021). Vulnerability of personality disorder during the Covid-19 crises – a multicenter survey of treatment experiences among patients referred to treatment. Nordic Journal of Psychiatry. ISSN 0803-9488. 76(1), p. 52–63. doi: 10.1080/08039488.2021.1934110. Full text in Research Archive
  • Kvarstein, Elfrida Hartveit; Antonsen, Bjørnar Torske; Klungsøyr, Ole; Pedersen, Geir Arild Feigum & Wilberg, Theresa (2021). A Longitudinal, Observational Study Investigating Predictors of Change in a Clinical Sample. Personality Disorders: Theory, Research, and Treatment. ISSN 1949-2715. doi: 10.1037/per0000471.
  • Pedersen, Geir Feigum; Kvarstein, Elfrida Hartveit; Wilberg, Theresa; Folmo, Espen; Burlingame, Gary M. & Lorentzen, Steinar (2021). The Group Questionnaire (GQ)—Psychometric Properties Among Outpatients With Personality Disorders. Group Dynamics. ISSN 1089-2699. doi: 10.1037/gdn0000176. Full text in Research Archive
  • Paap, Muirne C. S.; Heltne, Aleksander; Pedersen, Geir Feigum; Germans Selvik, Sara; Frans, Niek & Wilberg, Theresa [Show all 7 contributors for this article] (2021). More Is More: Evidence for the Incremental Value of the SCID-II/SCID-5- PD Specific Factors Over and Above a General Personality Disorder Factor. Personality Disorders: Theory, Research, and Treatment. ISSN 1949-2715. p. 1–11. doi: 10.1037/per0000426.
  • Kvarstein, Elfrida Hartveit; Folmo, Espen Jan; Antonsen, Bjørnar Torske; Norman-Eide, Eivind; Pedersen, Geir Arild Feigum & Wilberg, Theresa (2020). Social Cognition Capacities as Predictors of Outcome in Mentalization-Based Treatment (MBT). Frontiers in Psychiatry. ISSN 1664-0640. doi: 10.3389/fpsyt.2020.00691.
  • Hummelen, Benjamin; Braeken, Johan; Christensen, Tore Buer; Nysæter, Tor Erik; Germans Selvik, Sara & Walther, Kristoffer Lygren [Show all 9 contributors for this article] (2020). A psychometric analysis of the structured clinical interview for the DSM-5 alternative model for personality disorders module I (SCID-5-AMPD-I): Level of personality functioning scale . Assessment (ASM). ISSN 1073-1911. 28(5), p. 1320–1333. doi: 10.1177/1073191120967972. Full text in Research Archive
  • Paap, Muirne C.S.; Hummelen, Benjamin; Braeken, Johan; Arnevik, Espen Kristian Ajo; Walderhaug, Espen & Wilberg, Theresa [Show all 9 contributors for this article] (2020). A multi-center psychometric evaluation of the Severity Indices of Personality Problems 118 (SIPP-118): Do we really need all those facets? Quality of Life Research. ISSN 0962-9343. 30(2), p. 567–575. doi: 10.1007/s11136-020-02654-8. Full text in Research Archive
  • Folmo, Espen; Stänicke, Erik; Johansen, Merete Selsbakk; Pedersen, Geir Feigum & Kvarstein, Elfrida H (2020). Development of therapeutic alliance in mentalization-based treatment—Goals, Bonds, and Tasks in a specialized treatment for borderline personality disorder. Psychotherapy Research. ISSN 1050-3307. p. 1–15. doi: 10.1080/10503307.2020.1831097. Full text in Research Archive
  • Breivik, Randi; Wilberg, Theresa; Evensen, Julie Horgen; Røssberg, Jan Ivar; Dahl, Hanne-Sofie Johnsen & Pedersen, Geir Feigum (2020). Countertransference feelings and personality disorders: a psychometric evaluation of a brief version of the Feeling Word Checklist (FWC-BV). BMC Psychiatry. ISSN 1471-244X. 20(1), p. 1–12. doi: 10.1186/s12888-020-02556-6. Full text in Research Archive
  • Arnevik, Espen Kristian Ajo; Pedersen, Geir Feigum; Walderhaug, Espen; Lien, Ingebjørg Aspeland; Wilberg, Theresa & Hummelen, Benjamin (2019). Measuring personality problems in patients with substance use disorders: A cross-sample validation. Journal of Dual Diagnosis (JDD). ISSN 1550-4263. 15(4), p. 324–332. doi: 10.1080/15504263.2019.1668583.
  • Christensen, Tore Buer; Hummelen, Benjamin; Paap, Muirne C. S.; Eikenæs, Ingeborg Helene; Germans Selvik, Sara & Kvarstein, Elfrida H [Show all 10 contributors for this article] (2019). Evaluation of Diagnostic Thresholds for Criterion A in the Alternative DSM-5 Model for Personality Disorders . Journal of Personality Disorders. ISSN 0885-579X. 34, p. 40–61. doi: 10.1521/pedi_2019_33_455. Full text in Research Archive
  • Christensen, Tore Buer; Eikenæs, Ingeborg Helene; Hummelen, Benjamin; Pedersen, Geir Feigum; Nysæter, Tor Erik & Bender, Donna S. [Show all 8 contributors for this article] (2019). Level of personality functioning as a predictor of psychosocial functioning-Concurrent validity of criterion A . Personality Disorders: Theory, Research, and Treatment. ISSN 1949-2715. 11(2), p. 79–90. doi: 10.1037/per0000352. Full text in Research Archive
  • Normann, Eivind; Antonsen, Bjørnar Torske; Kvarstein, Elfrida H; Pedersen, Geir Feigum; Vaskinn, Anja & Wilberg, Theresa (2019). Are impairments in theory of mind specific to borderline personality disorder? Journal of Personality Disorders. ISSN 0885-579X. 34(6), p. 827–841. doi: 10.1521/pedi_2019_33_417. Full text in Research Archive
  • Kvarstein, Elfrida H; Pedersen, Geir Feigum; Folmo, Espen; Urnes, Øyvind; Hummelen, Benjamin & Wilberg, Theresa [Show all 8 contributors for this article] (2019). Mentalization-based treatment or psychodynamic treatment programs for patients with borderline personality disorder – the impact of clinical severity. . Psychology and Psychotherapy: Theory, Research and Practice. ISSN 1476-0835. 92(1), p. 91–111. doi: 10.1111/papt.12179. Full text in Research Archive
  • Büchmann, Camilla Bakkalia; Pedersen, Geir Feigum; Aminoff, Sofie Ragnhild; Anderssen, Jannicke Fjæra; Barrett, Elizabeth Ann & Melle, Ingrid [Show all 7 contributors for this article] (2018). Validity of the Birchwood Insight Scale in patients with schizophrenia spectrum- and bipolar disorders. Psychiatry Research. ISSN 0165-1781. 272, p. 715–722. doi: 10.1016/j.psychres.2018.12.072. Full text in Research Archive
  • Christensen, Tore Buer; Paap, Muirne C. S.; Arnesen, Marianne; Koritzinsky, Karoline H.; Nysæter, Tor Erik & Eikenæs, Ingeborg Helene [Show all 14 contributors for this article] (2018). Interrater reliability of the structured clinical interview for the DSM-5 alternative model of personality disorders module i: Level of personality functioning scale. Journal of Personality Assessment. ISSN 0022-3891. 100(6), p. 630–641. doi: 10.1080/00223891.2018.1483377. Full text in Research Archive
  • Pedersen, Geir Feigum; Urnes, Øyvind; Hummelen, Benjamin; Wilberg, Theresa & Kvarstein, Elfrida H (2018). Revised manual for the Global Assessment of Functioning scale. European psychiatry. ISSN 0924-9338. 51, p. 16–19. doi: 10.1016/j.eurpsy.2017.12.028.
  • Germans Selvik, Sara; Hummelen, Benjamin; Romild, Ulla; Langbehn, Douglas R. & Pedersen, Geir Feigum (2018). The Iowa Personality Disorder Screen: A validation study in a psychiatric population that receives long-term group psychotherapy for personality related problems. Personality and Mental Health. ISSN 1932-8621. 12(3), p. 229–240. doi: 10.1002/pmh.1418.
  • Pedersen, Geir Feigum; Arnevik, Espen Kristian; Hummelen, Benjamin; Walderhaug, Espen & Wilberg, Theresa (2017). Psychometric properties of the severity indices of personality problems (sipp) in two samples a norwegian community sample and clinical samples of patients with and without personality disorders. European Journal of Psychological Assessment. ISSN 1015-5759. 35(5), p. 698–711. doi: 10.1027/1015-5759/a000436. Full text in Research Archive
  • Paap, Muirne C. S.; Braeken, Johan; Pedersen, Geir Feigum; Urnes, Øyvind; Karterud, Sigmund & Wilberg, Theresa [Show all 7 contributors for this article] (2017). A Psychometric Evaluation of the DSM-IV Criteria for Antisocial Personality Disorder: Dimensionality, Local Reliability, and Differential Item Functioning Across Gender. Assessment (ASM). ISSN 1073-1911. doi: 10.1177/1073191117745126. Full text in Research Archive
  • Pedersen, Geir Feigum; Kvarstein, Elfrida H & Wilberg, Theresa (2017). The Work and Social Adjustment Scale: Psychometric properties and validity among males and females, and outpatients with and without personality disorders. Personality and Mental Health. ISSN 1932-8621. 11(4), p. 215–228. doi: 10.1002/pmh.1382.
  • Folmo, Espen Jan; Karterud, Sigmund; Bremer, Kjetil; Wahlter, Kristoffer Lygren; Kvarstein, Elfrida H & Pedersen, Geir Feigum (2017). The design of the MBT-G adherence and quality scale. Scandinavian Journal of Psychology. ISSN 0036-5564. 58(4), p. 341–349. doi: 10.1111/sjop.12375.
  • Lagerberg, Trine Vik; Aminoff, Sofie Ragnhild; Aas, Monica; Bjella, Thomas; Henry, Chantal & Leboyer, Marion [Show all 12 contributors for this article] (2017). Alcohol use disorders are Associated With increased effective lability in bipolar disorder. Journal of Affective Disorders. ISSN 0165-0327. 208, p. 316–324. doi: 10.1016/j.jad.2016.09.062.
  • Reas, Deborah; Pedersen, Geir Feigum & Rø, Øyvind (2016). Impulsivity-Related Traits Distinguish Women With Co-Occurring Bulimia Nervosa in a Psychiatric Sample. International Journal of Eating Disorders. ISSN 0276-3478. 49(12), p. 1093–1096. doi: 10.1002/eat.22606.
  • Karterud, Sigmund; Pedersen, Geir Feigum; Johansen, Merete; Wilberg, Theresa; Davis, Ken & Pankseep, Jaak (2016). Primary emotional traits in patients with personality disorders. Personality and Mental Health. ISSN 1932-8621. 10(10), p. 261–273. doi: 10.1002/pmh.1345.
  • Eikenæs, Ingeborg Helene; Pedersen, Geir Feigum & Wilberg, Theresa (2016). Attachment styles in patients with avoidant personality disorder compared with social phobia. Psychology and Psychotherapy: Theory, Research and Practice. ISSN 1476-0835. 89(3), p. 245–260. doi: 10.1111/papt.12075.
  • Pedersen, Geir Feigum; Eikenæs, Ingeborg Helene; Urnes, Øyvind; Skulberg, Guro Mikaelsen & Wilberg, Theresa (2015). Experiences in Close Relationships - Psychometric properties among patients with personality disorders. Personality and Mental Health. ISSN 1932-8621. 9(3), p. 208–219. doi: 10.1002/pmh.1298.
  • Reas, Deborah; Pedersen, Geir Feigum; Karterud, Sigmund & Rø, Øyvind (2015). Self-harm and suicidal behavior in borderline personality disorder with and without bulimia nervosa. Journal of Consulting and Clinical Psychology. ISSN 0022-006X. 83(3), p. 643–648. doi: 10.1037/ccp0000014.
  • Kvarstein, Elfrida Hartveit; Pedersen, Geir Feigum; Urnes, Øyvind; Hummelen, Benjamin; Wilberg, Theresa & Karterud, Sigmund (2015). Changing from a traditional psychodynamic treatment programme to mentalization-based treatment for patients with borderline personality disorder - Does it make a difference? Psychology and Psychotherapy: Theory, Research and Practice. ISSN 1476-0835. 88(1), p. 71–86. doi: 10.1111/papt.12036.
  • Hummelen, Benjamin; Pedersen, Geir Feigum; Wilberg, Theresa & Karterud, Sigmund (2015). Poor validity of the DSM IV schizoid personality disorder construct as a diagnostic category. Journal of Personality Disorders. ISSN 0885-579X. 29(3), p. 334–346. doi: 10.1521/pedi_2014_28_159.
  • Støre-Valen, Jakob; Ryum, Truls; Pedersen, Geir Feigum; Pripp, Are Hugo; Jose, P.E. & Karterud, Sigmund (2015). Does a web-based feedback training program result in improved reliability in clinicians' rating of the global assessment of functioning (GAF) scale? Psychological Assessment. ISSN 1040-3590. 27(3), p. 865–873. doi: 10.1037/pas0000086.
  • Pedersen, Geir Feigum; Urnes, Øyvind; Kvarstein, Elfrida H & Karterud, Sigmund (2014). The three factors of the psychoticism scale of SCL-90-R. Personality and Mental Health. ISSN 1932-8621. 10(3), p. 244–255. doi: 10.1002/pmh.1278.
  • Aas, Monica; Pedersen, Geir Feigum; Henry, Chantal; Bjella, Thomas; Bellivier, Frank & Leboyer, Marion [Show all 14 contributors for this article] (2014). Psychometric properties of the Affective Lability Scale (54 and 18-item version) in patients with bipolar disorder, first-degree relatives, and healthy controls. Journal of Affective Disorders. ISSN 0165-0327. 172, p. 375–380. doi: 10.1016/j.jad.2014.10.028.
  • Pedersen, Geir Feigum; Johansen, Merete Selsbakk; Wilberg, Theresa & Karterud, Sigmund (2014). Testing different versions of the affective neuroscience personality scales in a clinical sample. PLOS ONE. ISSN 1932-6203. 9(10). doi: 10.1371/journal.pone.0109394.
  • Antonsen, Bjørnar Torske; Klungsøyr, Ole; Kamps, Anne; Hummelen, Benjamin; Johansen, Merete Selsbakk & Pedersen, Geir Feigum [Show all 10 contributors for this article] (2014). Step-down versus outpatient psychotherapeutic treatment for personality disorders: 6-year follow-up of the Ullevål personality project. BMC Psychiatry. ISSN 1471-244X. 14(119). doi: 10.1186/1471-244X-14-119.
  • Nøkleby, Heid; Pedersen, Geir Feigum & Skårderud, Finn (2014). Symptoms of Eating Disorders Among Females in Drug Addiction Treatment. Journal of Social Work Practice in The Addictions. ISSN 1533-256X. 14(3), p. 225–238. doi: 10.1080/1533256X.2014.933728.
  • Karterud, Sigmund; Pedersen, Pedersen Feigum; Engen, Magnus Johan; Johansen, Merete Selsbakk; Johansson, Paul Niklas & Schlüther, Christian [Show all 9 contributors for this article] (2013). The MBT Adherence and Competence Scale (MBT-ACS): Development, structure and reliability. Psychotherapy Research. ISSN 1050-3307. 23(6), p. 705–717. doi: 10.1080/10503307.2012.708795.
  • Reas, Deborah; Rø, Øyvind; Karterud, Sigmund; Hummelen, Benjamin & Pedersen, Geir Feigum (2013). Eating disorders in a large clinical sample of men and women with personality disorders. International Journal of Eating Disorders. ISSN 0276-3478. 46(8), p. 801–809. doi: 10.1002/eat.22176.
  • Pedersen, Geir Feigum; Karterud, Sigmund; Hummelen, Benjamin & Wilberg, Theresa (2013). The impact of extended longitudinal observation for assessment of personality disorders. Personality and Mental Health. ISSN 1932-8621. 7(4), p. 277–287. doi: 10.1002/pmh.1234.
  • Pedersen, Geir Feigum; Tybring-Petersen, Kari; Tønder, Merete; Arnestad, Britt Toril; Møller, Anne Christine & Øya, Trude (2013). Spørreskjema for måling av kroppsopplevelse. Tidsskrift for Norsk Psykologforening. ISSN 0332-6470. 50(10), p. 992–998.
  • Paap, Muirne Caitlin Shonagh; Meijer, BR; Cohen-Kettenis, PT; Richter-Appelt, H.; De Cuypere, G. & Baudewijntje, P [Show all 10 contributors for this article] (2012). Why the factorial structure of the SCL-90-R is unstable: comparing patient groups with different levels of psychological distress using Mokken Scale Analysis. Psychiatry Research. ISSN 0165-1781. 200(2-3), p. 819–826. doi: 10.1016/j.psychres.2012.03.012.
  • Pedersen, Pedersen Feigum & Karterud, Sigmund (2012). The symptom and function dimensions of the Global Assessment of Functioning (GAF) scale. Comprehensive Psychiatry. ISSN 0010-440X. 53(3), p. 292–298. doi: 10.1016/j.comppsych.2011.04.007.
  • Pedersen, Pedersen Feigum & Karterud, Sigmund (2010). Using measures from the SCL-90-R to screen for personality disorders. Personality and Mental Health. ISSN 1932-8621. 4(2), p. 121–132. doi: 10.1002/pmh.122.
  • Leirvåg, Harald; Pedersen, Pedersen Feigum & Karterud, Sigmund (2010). Long-term continuation treatment after short-term day treatment of female patients with severe personality disorders: Body awareness group therapy versus psychodynamic group therapy. Nordic Journal of Psychiatry. ISSN 0803-9488. 64(2), p. 115–122. doi: 10.3109/08039480903487525.
  • Røssberg, Jan Ivar; Karterud, Sigmund; Pedersen, Pedersen Feigum & Friis, Svein (2010). Psychiatric symptoms and countertransference feelings: An empirical investigation. Psychiatry Research. ISSN 0165-1781. 178(1), p. 191–195. doi: 10.1016/j.psychres.2009.09.019.
  • Wilberg, Theresa; Hummelen, Benjamin; Pedersen, Geir Feigum & Karterud, Sigmund (2008). A study of patients with personality disorder not otherwise specified. Comprehensive Psychiatry. ISSN 0010-440X. 49(5), p. 460–468. doi: 10.1016/j.comppsych.2007.12.008.
  • Røssberg, Jan Ivar; Karterud, Sigmund; Pedersen, Geir & Friis, Svein (2008). Specific personality traits evoke different countertransference reactions - An empirical study. Journal of Nervous and Mental Disease. ISSN 0022-3018. 196(9), p. 702–708. doi: 10.1097/NMD.0b013e318186de80.

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  • Bekkevold-Jernberg, Ina; Pedersen, Geir Arild Feigum; Kvarstein, Elfrida Hartveit & Mehlum, Lars (2021). Avoidant Personality Disorder and Deliberate Self-Harm.
  • Kvarstein, Elfrida H; Langjord, Tuva; Pedersen, Geir; Eikenæs, Ingeborg Helene Ulltveit-Moe; Urnes, Øyvind & Walby, Fredrik (2020). Ekstrem selvskading ; Nasjonal kartlegging av pasienter med omfattende behandling i døgninstitusjon grunnet høy selvmordsfare.
  • Bekkevold-Jernberg, Ina Marie; Pedersen, Geir Feigum & Mehlum, Lars (2018). Borderline Personality Disorder and Self-Harm Behaviours: Gender and Age Differences.
  • Bekkevold-Jernberg, Ina Marie; Pedersen, Geir Feigum & Mehlum, Lars (2018). Age and Gender Differences in Self-Harm Behaviours Among Patients with Borderline Personality Disorder.
  • Germans Selvik, Sara; Hummelen, Benjamin; Langbehn, Douglas R. & Pedersen, Geir Feigum (2018). The Iowa Personality Disorder Screen: A validation study in a psychiatric population that receives long-term group psychotherapy for personality related problems .
  • Pedersen, Geir Feigum (2014). Global funksjonsskåring er like aktuelt etter siste versjon av diagnosesystemet DSM. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 9(134), p. 916–917. doi: 10.4045/tidsskr.14.0185.

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Published Dec. 11, 2013 9:33 AM - Last modified Feb. 10, 2022 3:15 PM