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Aleksander Hagen Erga

Associate Professor
Academic article
  • Erga, Aleksander Hagen; Hønsi, Audhild; Anda-Ågotnes, Liss Gøril; Nesvåg, Sverre Martin; Hesse, Morten; Hagen, Egon. 2020. Trajectories of psychological distress during recovery from polysubstance use disorder. Addiction Research and Theory. 1-8.
  • Bjørnestad, Jone Ravndal; Svendsen, Thomas Solgård; Slyngstad, Tale Ekeroth; Erga, Aleksander Hagen; McKay, James R.; Nesvåg, Sverre Martin; Skålevik, Alexander Wågan; Veseth, Marius; Moltu, Christian. 2019. “A life more ordinary” Processes of 5-year recovery from substance abuse. Experiences of 30 recovered service users. Frontiers in Psychiatry. 1-9.
  • Hagen, Egon; Sømhovd, Mikael Julius; Hesse, Morten; Arnevik, Espen Kristian; Erga, Aleksander Hagen. 2019. Measuring cognitive impairment in young adults with polysubstance use disorder with MoCA or BRIEF-A – The significance of psychiatric symptoms. Journal of Substance Abuse Treatment. 21-27.
  • Erga, Aleksander Hagen; Alves, Guido Werner; Tysnes, Ole-Bjørn; Pedersen, Kenn Freddy. 2019. Evolution of impulsive–compulsive behaviors and cognition in Parkinson’s disease. Journal of Neurology. 259-266.
  • Erga, Aleksander Hagen; Gjerstad, Michaela D; Alves, Guido Werner; Pedersen, Kenn Freddy. 2018. Psykologisk behandling av ikke-motoriske symptomer ved parkinsons sykdom. Tidsskrift for Norsk Psykologforening. 1108-1116.
  • Erga, Aleksander Hagen; Dalen, Ingvild; Ushakova, Anastasia; Chung, Janete; Tzoulis, Charalampos; Tysnes, Ole-Bjørn; Alves, Guido; Pedersen, Kenn Freddy; Maple-Grødem, Jodi. 2018. Dopaminergic and opioid pathways associated with impulse control disorders in Parkinson's disease. Frontiers in Neurology. 1-9.
  • Hagen, Egon; Erga, Aleksander Hagen; Hagen, Katrin Pedersen; Nesvåg, Sverre; McKay, James R.; Lundervold, Astri; Walderhaug, Espen. 2017. One-year sobriety improves satisfaction with life, executive functions and psychological distress among patients with polysubstance use disorder. Journal of Substance Abuse Treatment. 81-87.
  • Hagen, Egon; Erga, Aleksander Hagen; Nesvåg, Sverre; McKay, James R.; Lundervold, Astri; Walderhaug, Espen. 2017. One-year abstinence improves ADHD symptoms among patients with polysubstance use disorder. Addictive Behaviors Reports. 96-101.
  • Erga, Aleksander Hagen; Alves, Guido; Larsen, Jan Petter; Tysnes, Ole-Bjørn; Pedersen, Kenn Freddy. 2017. Impulsive and Compulsive Behaviors in Parkinson’s Disease: The Norwegian ParkWest Study. Journal of Parkinson's Disease. 183-191.
  • Svendsen, Thomas Solgård; Erga, Aleksander Hagen; Hagen, Egon; McKay, James R.; Njå, Anne-Lill Mjølhus; Årstad, Janne; Nesvåg, Sverre. 2017. How to Maintain High Retention Rates in Long-Term Research on Addiction: A Case Report. Journal of Social Work Practice in The Addictions. 374-387.
  • Hagen, Egon; Erga, Aleksander Hagen; Hagen, Katrin Pedersen; Nesvåg, Sverre; McKay, James R.; Lundervold, Astri; Walderhaug, Espen. 2016. Assessment of executive function in patients with substance use disorder: A comparison of inventory- and performance-based assessment. Journal of Substance Abuse Treatment. 1-8.
Letter to the editor
  • Erga, Aleksander Hagen; Bjørnestad, Anders; Tysnes, Ole-Bjørn; Alves, Guido; Pedersen, Kenn Freddy. 2018. Is psychosis associated with impulse control disorders in Parkinson's disease? Parkinsonism & Related Disorders. 110-111.
Academic literature review
  • Molde, Helge; Moussavi, Yasaman; Kopperud, Stine Therese; Erga, Aleksander Hagen; Hansen, Anita Lill; Pallesen, Ståle. 2018. Impulse-control disorders in Parkinson's Disease: A meta-analysis and review of case-control studies. 1-15.
  • Erga, Aleksander Hagen; Kvernenes, Katrine Valvatne; Evensen, Kjersti Berge; Vika, Margrethe Elin. 2017. Behandling av odontofobi for pasienter med post-traumatiske plager : en litteraturoversikt. 682-686.

More information in national current research information system (CRIStin)