Browsing Institutt for psykologi by Author "Olsen, Alexander"

Now showing items 1-20 of 59

    • Adhd and mental health symptoms in the identification of young adults with increased risk of alcohol dependency in the general population—the hunt4 population study 

      Lauvsnes, Anders Dahlen Forsmo; Langaas, Mette; Olsen, Alexander; Vassileva, Jasmin; Spigset, Olav; Gråwe, Rolf Wilhelm (Peer reviewed; Journal article, 2021)
      Symptoms of ADHD are strongly associated with alcohol use disorders, and mental health symptoms attenuate this relationship. There is limited knowledge about how specific symptoms of inattentiveness and hyperactivity/impulsivity ...

    • Affective Symptoms' associations with metacognitive beliefs, self-reported and performance-measured executive function 

      Dale, Lars-Oskar Hallaråker (Master thesis, 2019)
      Executive control and metacognitive beliefs are viewed as key contributors to emotional distress and disorder in the theoretical basis for metacognitive therapy, the self-regulatory executive function model. The present ...

    • Associations between executive functions, intelligence and adaptive behaviour in children and adolescents with mild intellectual disability 

      Gravråkmo, Sissel; Olsen, Alexander; Lydersen, Stian; Øie, Merete Glenne; Henry, Lucy; Ingul, Jo Magne (Journal article; Peer reviewed, 2022)

    • Associations between intelligence, everyday executive functions, and symptoms of mental health problems in children and adolescents with mild intellectual disability 

      Gravråkmo, Sissel; Henry, Lucy; Olsen, Alexander; Øie, Merete Glenne; Lydersen, Stian; Ingul, Jo Magne (Peer reviewed; Journal article, 2023)
      Background: Children and adolescents with intellectual disabilities have been found to have a higher prevalence of symptoms of mental health problems than the general population, but it is unclear whether these challenges ...

    • Associations between Sleep and Work-Related Cognitive and Emotional Functioning in Police Employees 

      Sørengaard, Torhild Anita; Olsen, Alexander; Langvik, Eva; Saksvik-Lehouillier, Ingvild (Peer reviewed; Journal article, 2021)
      Aim We aimed to examine the cross-sectional and longitudinal associations between sleep and work-related impaired cognitive and emotional functioning in police employees. Methods This study included 410 participants ...

    • A biofeedback app for migraine: Development and usability study 

      Ingvaldsen, Sigrid Hegna; Tronvik, Erling Andreas; Brenner, Eiliv; Winnberg, Ingunn; Olsen, Alexander; Gravdahl, Gøril Bruvik; Stubberud, Anker (Peer reviewed; Journal article, 2021)
      Background: Biofeedback is effective in treating migraines. It is believed to have a beneficial effect on autonomous nervous system activity and render individuals resilient to stressors that may trigger a migraine. However, ...

    • Biofeedback Treatment App for Pediatric Migraine: Development and Usability Study 

      Stubberud, Anker; Tronvik, Erling Andreas; Olsen, Alexander; Gravdahl, Gøril Bruvik; Linde, Mattias (Peer reviewed; Journal article, 2020)
      Objective The objective of this study was to develop and investigate the usability of a biofeedback treatment smartphone app for adolescent migraine sufferers. Background Biofeedback is effective in treating pediatric ...

    • Burnout - Its Relationship to Stress and Individual Susceptibilities 

      Holberg, Caroline (Master thesis, 2019)
      Burnout is a clinical phenomenon characterized by the symptoms of emotional exhaustion, depersonalization towards work and clients, as well as diminished professional efficacy. It is considered a consequence of long-term ...

    • Cognitive and vocational rehabilitation after mild-to-moderate traumatic brain injury: A randomised controlled trial 

      Fure, Silje Christine Reistad; Howe, Emilie; Andelic, Nada; Brunborg, Cathrine; Sveen, Unni; Røe, Cecilie; Rike, Per-Ola; Olsen, Alexander; Spjelkavik, Øystein; Ugelstad, Helene; Lu, Juan; Ponsford, Jennie; Twamley, Elizabeth; Hellstrøm, Torgeir (Peer reviewed; Journal article, 2021)
      Background Returning to work is often a primary rehabilitation goal after traumatic brain injury (TBI). However, the evidence base for treatment options regarding return to work (RTW) and stable work maintenance remains ...

    • Cognitive Reserve Moderates Cognitive Outcome After Mild Traumatic Brain Injury 

      Stenberg, Jonas; Håberg, Asta; Follestad, Turid; Olsen, Alexander; Iverson, Grant L.; Terry P., Douglas; Karlsen, Rune Hatlestad; Saksvik, Simen Berg; Karaliute, Migle; Ek, John Andre Nebb; Skandsen, Toril; Vik, Anne (Journal article; Peer reviewed, 2019)
      Objective To investigate whether cognitive reserve moderates differences in cognitive functioning between patients with mild traumatic brain injury (MTBI) and controls without MTBI and to examine whether patients with ...

    • Cognitive Reserve Moderates Cognitive Outcome After Mild Traumatic Brain Injury 

      Stenberg, Jonas; Håberg, Asta; Follestad, Turid; Olsen, Alexander; Iverson, Grant L.; Terry P., Douglas; Karlsen, Rune Hatlestad; Saksvik, Simen Berg; Karaliute, Migle; Ek, John Andre Nebb; Skandsen, Toril; Vik, Anne (Peer reviewed; Journal article, 2019)
      Objective To investigate whether cognitive reserve moderates differences in cognitive functioning between patients with mild traumatic brain injury (MTBI) and controls without MTBI and to examine whether patients with ...

    • The development, inter-rater agreement and performance of a hierarchical procedure for setting the rest-interval in actigraphy data 

      Follesø, Hanna Størksen; Austad, Sigrun Borgen; Olsen, Alexander; Saksvik-Lehouillier, Ingvild (Peer reviewed; Journal article, 2021)
      The aim of this study was to develop and empirically test a hierarchical procedure for defining rest intervals in actigraphy data. Background This is a two-part study. The aim of study 1 was to identify common practices ...

    • Digital insomnia behavioral therapy for insomnia in people with chronic pain: A secondary analysis of a large scale randomized controlled trial 

      Orvik Wilberg, Anna (Master thesis, 2024)
      Digital insomnibehandling kan redusere insomni hos pasienter, men behandlingseffekt og etterlevelse varierer. Å undersøke mulige moderatorer av behandlingsutfall kan gi oss mer kunnskap om slik variasjon. Formålet med ...

    • Effects of Habitual Physical Activity on Positive Affect and Cognitive Control in Non-Sleep Deprived and Sleep Deprived Individuals 

      Høiby, Tea (Master thesis, 2020)
      Studier viser at høyere habituelt fysisk aktivitetsnivå er assosiert med bedre kognitive kontrollfunksjoner og høyere positiv affekt når dette undersøkes hos ikke-søvndepriverte. Samtidig er det en mangel på studier som ...

    • En Studie om Sammenhengen mellom Subjektiv og Objektiv Søvnkvalitet, og Personlighet 

      Schultzen, Solveig Ross; Stokka, June (Master thesis, 2022)
      Søvn er viktig for normal fungering, og en vet at søvnvansker kan gi en rekke negative somatiske og psykologiske effekter. Søvnvansker ser ut til å være et økende problem i den norske befolkningen. Det er en kjent sammenheng ...

    • En Studie om Sammenhengen mellom Subjektiv og Objektiv Søvnkvalitet, og Personlighet 

      Schultzen, Solveig Ross; Stokka, June (Master thesis, 2022)
      Søvn er viktig for normal fungering, og en vet at søvnvansker kan gi en rekke negative somatiske og psykologiske effekter. Søvnvansker ser ut til å være et økende problem i den norske befolkningen. Det er en kjent sammenheng ...

    • ENIGMA and global neuroscience: A decade of large-scale studies of the brain in health and disease across more than 40 countries 

      Thompson, Paul M.; Jahanshad, Neda; Ching, Christopher R.K.; Salminen, Lauren E.; Thomopoulos, Sophia I.; Bright, Joanna; Baune, Bernhard T.; Bertolin, Sara; Bralten, Janita; Bruin, Willem B.; Bulow, Robin; Chen, Jian; Chye, Yann; Dannlowski, Udo; de Kovel, Carolien G.F.; Donohoe, Gary; Eyler, Lisa T.; Faraone, Stephen V.; Favre, Pauline; Filippi, Courtney A.; Frodl, Thomas; Garijo, Daniel; Gil, Yolanda; Grabe, Hans J.; Grasby, Katrina L.; Hajek, Tomas; Han, Laura K.M.; Hatton, Sean N.; Hilbert, Kevin; Ho, Tiffany C.; Holleran, Laurena; Homuth, Georg; Hosten, Norbert; Houenou, Josselin; Ivanov, Iliyan; Jia, Tianye; Kelly, Sinead; Klein, Marieke; Kwon, Jun Soo; Laansma, Max A.; Leerssen, Jeanne; Lueken, Ulrike; Nunes, Abraham; O'Neill, Joseph; Opel, Nils; Piras, Fabrizio; Piras, Federica; Postema, Merel C.; Pozzi, Elena; Shatokhina, Natalia; Soriano-Mas, Carles; Spalletta, Gianfranco; Sun, Daqiang; Teumer, Alexander; Tilot, Amanda K.; Tozzi, Leonardo; van der Merwe, Celia; van Someren, Eus J.W.; van Wingen, Guido A.; Völzke, Henry; Walton, Esther; Wang, Lei; Winkler, Anderson M.; Wittfeld, Katharina; Wright, Margaret J.; Yun, Je-Yeon; Zhang, Guohao; Zhang-James, Yanli; Adhikari, Bhim M.; Agartz, Ingrid; Aghajani, Moji; Aleman, André; Althoff, Robert R.; Altmann, Andre; Andreassen, Ole Andreas; Baron, David A.; Bartnik-Olson, Brenda L.; Bas-Hoogendam, Janna Marie; Baskin-Sommers, Arielle R.; Bearden, Carrie E.; Berner, Laura A.; Boedhoe, Premika S.W.; Brouwer, Rachel M.; Buitelaar, Jan K.; Caeyenberghs, Karen; Cecil, Charlotte A.M.; Cohen, Ronald A.; Cole, James H.; Conrod, Patricia J.; De Brito, Stephane A.; de Zwarte, Sonja M.C.; Dennis, Emily L.; Desrivieres, Sylvane; Dima, Danai; Ehrlich, Stefan; Esopenko, Carrie; Fairchild, Graeme; Fisher, Simon E.; Fouche, Jean-Paul; Francks, Clyde; Frangou, Sophia; Franke, Barbara; Garavan, Hugh P.; Glahn, David C.; Groenewold, Nynke A.; Gurholt, Tiril Pedersen; Gutman, Boris A.; Hahn, Tim; Harding, Ian H.; Hernaus, Dennis; Hibar, Derrek P.; Hillary, Frank G.; Hoogman, Martine; Hulshoff Pol, Hilleke E.; Jalbrzikowski, Maria; Karkashadze, George A.; Klapwijk, Eduard T.; Knickmeyer, Rebecca C.; Kochunov, Peter; Koerte, Inga K.; Kong, Xiang-Zhen; Liew, Sook-Lei; Lin, Alexander P.; Logue, Mark W.; Luders, Eileen; Macciardi, Fabio; Mackey, Scott; Mayer, Andrew R.; McDonald, Carrie R.; McMahon, Agnes B.; Medland, Sarah E.; Modinos, Gemma; Morey, Rajendra A.; Mueller, Sven C.; Mukherjee, Pratik; Namazova-Baranova, Leyla; Nir, Talia M; Olsen, Alexander; Paschou, Peristera; Pine, Daniel S.; Pizzagalli, Fabrizio; Rentería, Miguel E.; Rohrer, Jonathan D.; Sämann, Philipp G.; Schmaal, Lianne; Schumann, Gunter; Shiroishi, Mark S.; Sisodiya, Sanjay M.; Smit, Dirk J.A.; Sønderby, Ida Elken; Stein, Dan J.; Stein, Jason L.; Tahmasian, Masoud; Tate, David F.; Turner, Jessica A.; van den Heuvel, Odile A; Van Der Wee, Nic J.A.; van der Werf, Ysbrand D.; van Erp, Theo G.M.; van Haren, Neeltje E.M.; van Rooij, Daan; van Velzen, Laura S.; Veer, Ilya M.; Veltman, Dick J.; Villalon-Reina, Julio E.; Walter, Henrik; Whelan, Christopher D.; Wilde, Elisabeth A.; Zarei, Mojtaba; Zelman, Vladimir (Peer reviewed; Journal article, 2020)
      This review summarizes the last decade of work by the ENIGMA (Enhancing NeuroImaging Genetics through Meta Analysis) Consortium, a global alliance of over 1400 scientists across 43 countries, studying the human brain in ...

    • ENIGMA brain injury: Framework, challenges, and opportunities 

      Dennis, Emily L.; Baron, David; Bartnik-Olson, Brenda L.; Caeyenberghs, Karen; Esopenko, Carrie; Hillary, Frank G.; Kenney, Kimbra; Koerte, Inga K.; Lin, Alexander P.; Mayer, Andrew R.; Mondello, Stefania; Olsen, Alexander; Thompson, Paul M.; Tate, David; Wilde, Elisabeth A. (Peer reviewed; Journal article, 2020)
      Traumatic brain injury (TBI) is a major cause of disability worldwide, but the heterogeneous nature of TBI with respect to injury severity and health comorbidities make patient outcome difficult to predict. Injury severity ...

    • ENIGMA-Sleep: Challenges, opportunities, and the road map 

      Tahmasian, Masoud; Aleman, André; Andreassen, Ole; Arab, Zahra; Baillet, Marion; Benedetti, Francesco; Bresser, Tom; Bright, Joanna; Chee, Michael W.L.; Chylinski, Daphne; Cheng, Wei; Deantoni, Michele; Dresler, Martin; Eickhoff, Simon B.; Eickhoff, Claudia R.; Elvsåshagen, Torbjørn; Feng, Jianfeng; Foster-Dingley, Jessica C.; Ganjgahi, Habib; Grabe, Hans J.; Groenewold, Nynke A.; Ho, Tiffany C.; Bong Hong, Seung; Houenou, Josselin; Irungu, Benson; Jahanshad, Neda; Khazaie, Habibolah; Kim, Hosung; Koshmanova, Ekaterina; Kocevska, Desi; Kochunov, Peter; Lakbila-Kamal, Oti; Leerssen, Jeanne; Li, Meng; Luik, Annemarie I.; Muto, Vincenzo; Narbutas, Justinas; Nilsonne, Gustav; O’Callaghan, Victoria S.; Olsen, Alexander; Osorio, Ricardo S.; Poletti, Sara; Poudel, Govinda; Reesen, Joyce E.; Reneman, Liesbeth; Reyt, Mathilde; Riemann, Dieter; Rosenzweig, Ivana; Rostampour, Masoumeh; Saberi, Amin; Schiel, Julian; Schmidt, Christina; Schrantee, Anouk; Sciberras, Emma; Silk, Tim J.; Sim, Kang; Smevik, Hanne; Soares, Jair C.; Spiegelhalder, Kai; Stein, Dan J.; Talwar, Puneet; Tamm, Sandra; Teresi, Giana l.; Valk, Sofie L.; Van Someren, Eus; Vandewalle, Gilles; Van Egroo, Maxime; Völzke, Henry; Walter, Martin; Wassing, Rick; Weber, Frederik D.; Weihs, Antoine; Westlye, Lars Tjelta; Wright, Margaret J.; Wu, Mon-Ju; Zak, Nathalia; Zarei, Mojtaba (Peer reviewed; Journal article, 2021)
      Neuroimaging and genetics studies have advanced our understanding of the neurobiology of sleep and its disorders. However, individual studies usually have limitations to identifying consistent and reproducible effects, ...

    • Examining 3-month test-retest reliability and reliable change using the Cambridge Neuropsychological Test Automated Battery 

      Karlsen, Rune Hatlestad; Karr, Justin E.; Saksvik, Simen Berg; Lundervold, Astri J.; Hjemdal, Odin; Olsen, Alexander; Iverson, Grant L.; Skandsen, Toril (Peer reviewed; Journal article, 2020)
      The Cambridge Neuropsychological Test Automated Battery (CANTAB) is a battery of computerized neuropsychological tests commonly used in Europe in neurology and psychiatry studies, including clinical trials. The purpose of ...