Alexander Olsen
Om
Alexander Olsen is the head of the Clinical Neuroscience Laboratory (CNL), co-leader of the post traumatic headache research group at the Norwegian Centre for Headache Research (NorHEAD), and an Associate Professor at the Department of Psychology at the Norwegian University of Science and Technology. He is also a certified specialist in clinical neuropsychology, with a clinical position at the Department of Physical Medicine and Rehabilitation, St. Olavs Hospital, where he is working with neuropsychological assessments and clinical follow-up of patients with acquired brain injury. Alexander Olsen is the current president of the Norwegian Neuropsychological Society.
Publikasjoner
2023
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Stubberud, Anker;
Ingvaldsen, Sigrid Hegna;
Brenner, Eiliv;
Winnberg, Ingunn Grøntveit;
Olsen, Alexander;
Gravdahl, Gøril Bruvik.
(2023)
Forecasting migraine with machine learning based on mobile phone diary and wearable data.
Cephalalgia
Vitenskapelig artikkel
-
Eriksen, Adrian Dybfest;
Olsen, Alexander;
Sigmundsson, Hermundur.
(2023)
Exploring the relationships between visuospatial working memory, math, letter-sound knowledge, motor competence, and gender in first grade children: A correlational study.
Frontiers in Psychology
Vitenskapelig artikkel
-
Smevik, Hanne;
Habli, Sarah;
Saksvik, Simen Berg;
Kliem, Elisabeth;
Evensmoen, Hallvard Røe;
Conde, Virginia.
(2023)
Poorer sleep health is associated with altered brain activation during cognitive control processing in healthy adults.
Cerebral Cortex
Vitenskapelig artikkel
-
Matre, Martin;
Johansen, Truls Sveløkken;
Olsen, Alexander;
Tornås, Sveinung;
Martinsen, Anne Catrine Trægde;
Lund, Anne.
(2023)
A protocol for the development and validation of a virtual reality-based clinical test of social cognition.
BMC Digital Health
Vitenskapelig artikkel
-
Gravråkmo, Sissel;
Henry, Lucy;
Olsen, Alexander;
Øie, Merete Glenne;
Lydersen, Stian;
Ingul, Jo Magne.
(2023)
Associations between intelligence, everyday executive functions, and symptoms of mental health problems in children and adolescents with mild intellectual disability.
International Journal of Developmental Disabilities (IJDD)
Vitenskapelig artikkel
2022
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Sørengaard, Torhild Anita;
Langvik, Eva ;
Olsen, Alexander;
Saksvik-Lehouillier, Ingvild.
(2022)
Predictors of insomnia symptoms in police employees: a longitudinal investigation and comparison of personality and psychosocial work factors.
Cogent Psychology
Vitenskapelig artikkel
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Fure, Silje Christine Reistad;
Howe, Emilie;
Andelic, Nada;
Brunborg, Cathrine;
Olsen, Alexander;
Rike, Per-Ola.
(2022)
Workplace Factors Associated With Return to Work After Mild-to-Moderate Traumatic Brain Injury.
The journal of head trauma rehabilitation
Vitenskapelig artikkel
-
Kliem, Elisabeth;
Labberton, Angela Susan;
Barra, Mathias;
Olsen, Alexander;
Thommessen, Bente;
Thomas, Owen Matthew Truscott.
(2022)
Self-reported cognitive and psychiatric symptoms at 3 months predict single-item measures of fatigue and daytime sleep 12 months after ischemic stroke.
Frontiers in Neurology
Vitenskapelig artikkel
-
Gravråkmo, Sissel;
Olsen, Alexander;
Lydersen, Stian;
Ingul, Jo Magne;
Henry, Lucy;
Øie, Merete Glenne.
(2022)
Associations between executive functions, intelligence and adaptive behaviour in children and adolescents with mild intellectual disability.
Journal of Intellectual Disabilities
Vitenskapelig artikkel
-
Olsen, Alexander;
Dennis, Emily L.;
Stubberud, Jan Egil;
Hovenden, Elizabeth S.;
Solbakk, Anne-Kristin;
Endestad, Tor.
(2022)
Regional brain volume prior to treatment is linked to outcome after cognitive rehabilitation in traumatic brain injury.
NeuroImage: Clinical
Vitenskapelig artikkel
2021
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Ingvaldsen, Sigrid Hegna;
Tronvik, Erling Andreas;
Brenner, Eiliv;
Winnberg, Ingunn;
Olsen, Alexander;
Gravdahl, Gøril Bruvik.
(2021)
A biofeedback app for migraine: Development and usability study.
JMIR Formative Research
Vitenskapelig artikkel
-
Saksvik-Lehouillier, Ingvild;
Langvik, Eva ;
Saksvik, Simen Berg;
Kallestad, Håvard;
Follesø, Hanna Størksen;
Austad, Sigrun Borgen.
(2021)
High neuroticism is associated with reduced negative affect following sleep deprivation.
Personality and Individual Differences
Vitenskapelig artikkel
-
Damanskyy, Yevhen;
Olsen, Alexander;
Hollup, Stig Arvid.
(2021)
Prior Prognostic Expectations as a Potential Predictor in Neurofeedback Training.
Journal of Cognitive Enhancement
Vitenskapelig artikkel
-
Lauvsnes, Anders Dahlen Forsmo;
Langaas, Mette;
Olsen, Alexander;
Vassileva, Jasmin;
Spigset, Olav;
Gråwe, Rolf Wilhelm.
(2021)
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.
International Journal of Environmental Research and Public Health (IJERPH)
Vitenskapelig artikkel
-
Fordal, Linda;
Stenberg, Jonas;
Iverson, Grant L.;
Saksvik, Simen Berg;
Karaliute, Migle;
Vik, Anne.
(2021)
Trajectories of Persistent Postconcussion Symptoms and Factors Associated With Symptom Reporting After Mild Traumatic Brain Injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Follesø, Hanna Størksen;
Austad, Sigrun Borgen;
Olsen, Alexander;
Saksvik-Lehouillier, Ingvild.
(2021)
The development, inter-rater agreement and performance of a hierarchical procedure for setting the rest-interval in actigraphy data.
Sleep Medicine
Vitenskapelig artikkel
-
Fure, Silje Christine Reistad;
Howe, Emilie;
Spjelkavik, Øystein;
Røe, Cecilie;
Rike, Per-Ola;
Olsen, Alexander.
(2021)
Post-concussion symptoms three months after mild-to-moderate TBI: characteristics of sick-listed patients referred to specialized treatment and consequences of intracranial injury.
Brain Injury
Vitenskapelig artikkel
-
Fure, Silje Christine Reistad;
Howe, Emilie;
Andelic, Nada;
Brunborg, Cathrine;
Sveen, Unni;
Røe, Cecilie.
(2021)
Cognitive and vocational rehabilitation after mild-to-moderate traumatic brain injury: A randomised controlled trial.
Annals of Physical and Rehabilitation Medicine
Vitenskapelig artikkel
-
Kliem, Elisabeth;
Gjestad, Elise Ødegård;
Ryum, Truls;
Olsen, Alexander;
Thommessen, Bente;
Indredavik, Bent.
(2021)
The Relationship of Psychiatric Symptoms with Performance-Based and Self-Reported Cognitive Function After Ischemic Stroke.
Journal of the International Neuropsychological Society
Vitenskapelig artikkel
-
Tahmasian, Masoud;
Aleman, André;
Andreassen, Ole;
Arab, Zahra;
Baillet, Marion;
Benedetti, Francesco.
(2021)
ENIGMA-Sleep: Challenges, opportunities, and the road map.
Journal of Sleep Research
Vitenskapelig oversiktsartikkel/review
-
Saksvik, Simen Berg;
Smevik, Hanne;
Stenberg, Jonas;
Follestad, Turid;
Vik, Anne;
Håberg, Asta.
(2021)
Poor sleep quality is associated with greater negative consequences for cognitive control function and psychological health after mild traumatic brain injury than after orthopedic injury.
Neuropsychology
Vitenskapelig artikkel
-
Sørengaard, Torhild Anita;
Olsen, Alexander;
Langvik, Eva ;
Saksvik-Lehouillier, Ingvild.
(2021)
Associations between Sleep and Work-Related Cognitive and Emotional Functioning in Police Employees.
SH@W Safety and Health at Work
Vitenskapelig artikkel
-
Dennis, Emily L.;
Caeyenberghs, Karen;
Hoskinson, Kristen R;
Merkley, Tricia L;
Suskauer, Stacy J;
Asarnow, Robert F.
(2021)
White Matter Disruption in Pediatric Traumatic Brain Injury: Results From ENIGMA Pediatric Moderate to Severe Traumatic Brain Injury.
Neurology
Vitenskapelig artikkel
-
Karaliute, Migle;
Saksvik, Simen Berg;
Smevik, Hanne;
Follestad, Turid;
Einarsen, Cathrine Elisabeth;
Vik, Anne.
(2021)
Methodology Matters: Comparing Approaches for Defining Persistent Symptoms after Mild Traumatic Brain Injury.
Neurotrauma Reports
Vitenskapelig artikkel
2020
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Olsen, Alexander;
Babikian, Talin;
Bigler, Erin D.;
Caeyenberghs, Karen;
Conde, Virginia;
Dams-O’Connor, Kristen.
(2020)
Toward a global and reproducible science for brain imaging in neurotrauma: the ENIGMA adult moderate/severe traumatic brain injury working group.
Brain Imaging and Behavior
Vitenskapelig artikkel
-
Karlsen, Rune Hatlestad;
Karr, Justin E.;
Saksvik, Simen Berg;
Lundervold, Astri J. ;
Hjemdal, Odin;
Olsen, Alexander.
(2020)
Examining 3-month test-retest reliability and reliable change using the Cambridge Neuropsychological Test Automated Battery.
Applied neuropsychology: Adult
Vitenskapelig artikkel
-
Thompson, Paul M.;
Jahanshad, Neda;
Ching, Christopher R.K.;
Salminen, Lauren E.;
Thomopoulos, Sophia I.;
Bright, Joanna.
(2020)
ENIGMA and global neuroscience: A decade of large-scale studies of the brain in health and disease across more than 40 countries.
Translational Psychiatry
Vitenskapelig oversiktsartikkel/review
-
Olsen, Alexander;
Babikian, Talin;
Dennis, Emily L.;
Ellis-Blied, Monica U.;
Giza, Christopher C.;
Marion, Sarah DeBoard.
(2020)
Functional Brain Hyperactivations Are Linked to an Electrophysiological Measure of Slow Interhemispheric Transfer Time after Pediatric Moderate/Severe Traumatic Brain Injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Stubberud, Anker;
Linde, Mattias;
Brenner, Eiliv;
Heier, Martin;
Olsen, Alexander;
Aamodt, Anne Hege.
(2020)
Self-administered biofeedback treatment app for pediatric migraine: A randomized pilot study.
Brain and Behavior
Vitenskapelig artikkel
-
Dennis, Emily L.;
Baron, David;
Bartnik-Olson, Brenda L.;
Caeyenberghs, Karen;
Esopenko, Carrie;
Hillary, Frank G..
(2020)
ENIGMA brain injury: Framework, challenges, and opportunities.
Human Brain Mapping
Vitenskapelig oversiktsartikkel/review
-
Saksvik, Simen Berg;
Karaliute, Migle;
Kallestad, Håvard;
Follestad, Turid;
Asarnow, Robert F.;
Vik, Anne.
(2020)
The prevalence and stability of sleep-wake disturbance and fatigue throughout the first year after mild traumatic brain injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Olsen, Alexander;
Saksvik, Simen Berg;
Skandsen, Toril.
(2020)
Hjernerystelser kan gi langvarige søvnproblemer.
Aftenposten Viten
Populærvitenskapelig artikkel
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Skandsen, Toril;
Stenberg, Jonas;
Follestad, Turid;
Karaliute, Migle;
Saksvik, Simen Berg;
Einarsen, Cathrine Elisabeth.
(2020)
Personal factors associated with postconcussion symptoms 3 months after mild traumatic brain injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Dennis, Emily L.;
Caeyenberghs, Karen;
Asarnow, Robert F.;
Babikian, Talin;
Bartnik-Olson, Brenda L.;
Bigler, Erin D.
(2020)
Challenges and opportunities for neuroimaging in young patients with traumatic brain injury: a coordinated effort towards advancing discovery from the ENIGMA pediatric moderate/severe TBI group.
Brain Imaging and Behavior
Vitenskapelig artikkel
-
Karlsen, Rune Hatlestad;
Saksvik, Simen Berg;
Stenberg, Jonas;
Lundervold, Astri J. ;
Olsen, Alexander;
Rautio, Ida.
(2020)
Examining the Subacute Effects of Mild Traumatic Brain Injury Using a Traditional and Computerized Neuropsychological Test Battery.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Vethe, Daniel;
Scott, Janine Linda;
Engstrøm, Morten;
Salvesen, Øyvind;
Sand, Trond;
Olsen, Alexander.
(2020)
The evening light environment in hospitals can be designed
to produce less disruptive effects on the circadian system and
improve sleep.
Sleep
Vitenskapelig artikkel
-
Saksvik-Lehouillier, Ingvild;
Saksvik, Simen Berg;
Dahlberg, Berit Johanna;
Tanum, Tiril Kristine;
Ringen, Heidi;
Karlsen, Håvard Rudi.
(2020)
Mild to moderate partial sleep deprivation is associated with increased impulsivity and decreased positive affect in young adults.
Sleep
Vitenskapelig artikkel
-
Stubberud, Anker;
Tronvik, Erling Andreas;
Olsen, Alexander;
Gravdahl, Gøril Bruvik;
Linde, Mattias.
(2020)
Biofeedback Treatment App for Pediatric Migraine: Development and Usability Study.
Headache
Vitenskapelig artikkel
2019
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Stenberg, Jonas;
Håberg, Asta;
Follestad, Turid;
Olsen, Alexander;
Iverson, Grant L.;
Terry P., Douglas.
(2019)
Cognitive Reserve Moderates Cognitive Outcome After Mild Traumatic Brain Injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
2018
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Hollund, Ingrid Marie Husby;
Olsen, Alexander;
Skranes, Jon Sverre;
Brubakk, Ann-Mari;
Håberg, Asta;
Eikenes, Live.
(2018)
White matter alterations and their associations with motor function in young adults born preterm with very low birth weight.
NeuroImage: Clinical
Vitenskapelig artikkel
-
Solheim, Brandy;
Olsen, Alexander;
Kallestad, Håvard;
Langsrud, Knut;
Bjorvatn, Bjørn;
Gradisar, Michael.
(2018)
Cognitive performance in DSWPD patients upon awakening from habitual sleep compared with forced conventional sleep.
Journal of Sleep Research
Vitenskapelig artikkel
-
Stubberud, Anker;
Omland, Petter Moe;
Tronvik, Erling Andreas;
Olsen, Alexander;
Sand, Trond;
Linde, Mattias.
(2018)
Wireless Surface Electromyography and Skin Temperature Sensors for Biofeedback Treatment of Headache: Validation Study with Stationary Control Equipment.
JMIR Biomedical Engineering
Vitenskapelig artikkel
-
Dennis, Emily L.;
Babikian, Talin;
Alger, Jeffry;
Rashid, Faisal;
Villalon-Reina, Julio E.;
Jin, Yan.
(2018)
Magnetic resonance spectroscopy of fiber tracts in children with traumatic brain injury: A combined MRS - Diffusion MRI study.
Human Brain Mapping
Vitenskapelig artikkel
-
Omland, Petter Moe;
Tronvik, Erling Andreas;
Olsen, Alexander;
Sand, Trond;
Linde, Mattias.
(2018)
Wireless Surface Electromyography and Skin Temperature Sensors for Biofeedback Treatment of Headache: Validation Study with Stationary Control Equipment.
JMIR Biomedical Engineering
Vitenskapelig artikkel
-
Dennis, Emily L.;
Caeyenberghs, Karen;
Babikian, Talin;
Olsen, Alexander;
Giza, Christopher C.;
Asarnow, Robert F..
(2018)
ENIGMA pediatric msTBI: Preliminary results from meta-analysis of diffusion MRI.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Grambaite, Ramune;
Sundby, Jørgen;
Lundervold, Astri;
Solbakk, Anne-Kristin;
Hessen, Erik;
Olsen, Alexander.
(2018)
Undervisning i klinisk nevropsykologi på profesjonsstudiene i Norge.
Nevropsykologi : Medlemsblad for Norsk Nevropsykologisk Forening
Vitenskapelig oversiktsartikkel/review
-
Babikian, Talin;
Alger, Jeffry R.;
Ellis-Blied, Monica U.;
Giza, Christopher C.;
Dennis, Emily;
Olsen, Alexander.
(2018)
Whole Brain Magnetic Resonance Spectroscopic Determinants of Functional Outcomes in Pediatric Moderate/Severe Traumatic Brain Injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Stenberg, Jonas;
Håberg, Asta;
Olsen, Alexander;
Follestad, Turid;
Iverson, Grant L.;
Karaliute, Migle.
(2018)
Neurocognitive Functioning after Mild Traumatic Brain Injury: A Prospective Study Exploring Subgroups Reporting Symptoms.
Journal of Neurotrauma
Sammendrag/abstract
-
Stenberg, Jonas;
Håberg, Asta;
Olsen, Alexander;
Follestad, Turid;
Iverson, Grant L.;
Saksvik, Simen Berg.
(2018)
Cognitive Reserve and the Interaction between Premorbid IQ and Mild Traumatic Brain Injury.
Journal of Neurotrauma
Sammendrag/abstract
2017
-
Olsen, Alexander;
Dennis, Emily L;
Evensen, Kari Anne Indredavik;
Hollund, Ingrid Marie Husby;
Løhaugen, Gro;
Thompson, Paul M.
(2017)
Preterm birth leads to hyper-reactive cognitive control processing and poor white matter organization in adulthood.
NeuroImage
Vitenskapelig artikkel
-
Karaliute, Migle;
Olsen, Alexander;
Saksvik, Simen Berg;
Einarsen, Cathrine Elisabeth;
Vik, Anne;
Håberg, Asta.
(2017)
Post-concussive symptoms the first year after mild traumatic brain injury: Preliminary results from a large prospective cohort study.
Brain Injury
Sammendrag/abstract
-
Dennis, Emily L;
Rashid, Faisal;
Ellis, Monica U;
Babikian, Talin;
Vlasova, Roza M;
Villalon-Reina, Julio E.
(2017)
Diverging white matter trajectories in children after traumatic brain injury.
Neurology
Vitenskapelig artikkel
-
Wohlwend, Martin Rainer;
Olsen, Alexander;
Håberg, Asta;
Palmer, Helen.
(2017)
Exercise Intensity-Dependent Effects on Cognitive Control Function during and after Acute Treadmill Running in Young Healthy Adults.
Frontiers in Psychology
Vitenskapelig artikkel
-
Bergersen, Kjersti;
Halvorsen, Joar Øveraas;
Tryti, Einar Aagaard;
Taylor, Solveig Isabel;
Olsen, Alexander.
(2017)
A systematic literature review of psychotherapeutic treatment of prolonged symptoms after mild traumatic brain injury.
Brain Injury
Vitenskapelig oversiktsartikkel/review
2016
-
Husby, Ingrid Marie;
Stray, Kaia Mølbach-Thellefsen;
Olsen, Alexander;
Lydersen, Stian;
Indredavik, Marit Sæbø;
Brubakk, Ann-Mari.
(2016)
Long-term follow-up of mental health, health-related quality of life and associations with motor skills in young adults born preterm with very low birth weight.
Health and Quality of Life Outcomes
Vitenskapelig artikkel
-
Moen, Kent Gøran;
Vik, Anne;
Olsen, Alexander;
Skandsen, Toril;
Håberg, Asta;
Evensen, Kari Anne Indredavik.
(2016)
Traumatic axonal injury: Relationships between lesions in the early phase and diffusion tensor imaging parameters in the chronic phase of traumatic brain injury.
Journal of Neuroscience Research
Vitenskapelig artikkel
-
Aasen, Ida Emilia Sareneva;
Håberg, Asta;
Olsen, Alexander;
Brubakk, Ann-Mari;
Evensen, Kari Anne Indredavik;
Sølsnes, Anne Elisabeth.
(2016)
The relevance of the irrelevant: Attention and task-set adaptation in prematurely born adults.
Clinical Neurophysiology
Vitenskapelig artikkel
-
Ellis, Monica U.;
DeBoard Marion, Sarah;
McArthur, David L.;
Babikian, Talin;
Giza, Christopher;
Kernan, Claudia L..
(2016)
The UCLA study of children with moderate-to-severe traumatic brain injury: Event-related potential measure of interhemispheric transfer time.
Journal of Neurotrauma
Vitenskapelig artikkel
2015
-
Olsen, Alexander;
Brunner, Jan Ferenc;
Evensen, Kari A. Indredavik;
Finnanger, Torun Gangaune;
Vik, Anne;
Skandsen, Toril.
(2015)
Altered Cognitive Control Activations after Moderate-to-Severe Traumatic Brain Injury and Their Relationship to Injury Severity and Everyday-Life function.
Cerebral Cortex
Vitenskapelig artikkel
-
Brunner, Jan Ferenc;
Olsen, Alexander;
Aasen, Ida Emilia Sareneva;
Løhaugen, Gro;
Håberg, Asta;
Kropotov, Yury.
(2015)
Neuropsychological parameters indexing executive processes are associated with independent components of ERPs.
Neuropsychologia
Vitenskapelig artikkel
-
Dennis, Emily L;
Ellis, Monica U;
Marion, Sarah D;
Jin, Yan;
Moran, Lisa;
Olsen, Alexander.
(2015)
Callosal function in pediatric traumatic brain injury linked to disrupted white matter integrity.
Journal of Neuroscience
Vitenskapelig artikkel
-
Finnanger, Torun Gangaune;
Olsen, Alexander;
Skandsen, Toril;
Lydersen, Stian;
Vik, Anne;
Evensen, Kari A. Indredavik.
(2015)
Life after adolescent and adult moderate and severe traumatic brain injury: self-reported executive, emotional, and behavioural function 2-5 years after injury.
Behavioural Neurology
Vitenskapelig artikkel
-
Håberg, Asta;
Olsen, Alexander;
Moen, Kent Gøran;
Schirmer-Mikalsen, Kari;
Visser, E;
Finnanger, Torun Gangaune.
(2015)
White matter microstructure in chronic moderate-to-severe traumatic brain injury: Impact of acute-phase injury-related variables and associations with outcome measures.
Journal of Neuroscience Research
Vitenskapelig artikkel
2014
-
Olsen, Alexander;
Håberg, Asta;
Landrø, Nils Inge.
(2014)
Cognitive control function and moderate-to-severe traumatic brain injury : functional and structural brain correlates.
Doktoravhandlinger ved NTNU (372)
Doktorgradsavhandling
-
Moen, Kine Therese;
Jørgensen, Lone;
Olsen, Alexander;
Håberg, Asta;
Skandsen, Toril;
Vik, Anne.
(2014)
High-level mobility in chronic traumatic brain injury and its relationship with clinical variables and magnetic resonance imaging findings in the acute phase.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Solheim, Brandy;
Langsrud, Knut;
Kallestad, Håvard;
Olsen, Alexander;
Bjorvatn, Bjørn;
Sand, Trond.
(2014)
Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients.
Sleep Medicine
Vitenskapelig artikkel
2013
-
Brunner, Jan Ferenc;
Hansen, Tor Ivar;
Olsen, Alexander;
Skandsen, Toril;
Håberg, Asta;
Kropotov, Yury.
(2013)
Long-term test-retest reliability of the P3 No Go wave and two independent components decomposed from the P3 No Go wave in a visual Go/NoGo task.
International Journal of Psychophysiology
Vitenskapelig artikkel
-
Olsen, Alexander;
Brunner, Jan Ferenc;
Evensen, Kari A. Indredavik;
de Cisneros, Benjamín Garzón Jiménez;
Landrø, Nils Inge;
Håberg, Asta.
(2013)
The Functional Topography and Temporal Dynamics of Overlapping and Distinct Brain Activations for Adaptive Task Control and Stable Task-set Maintenance during Performance of an fMRI-adapted Clinical Continuous Performance Test.
Journal of Cognitive Neuroscience
Vitenskapelig artikkel
-
Husby, Ingrid Marie;
Skranes, Jon;
Olsen, Alexander;
Brubakk, Ann-Mari;
Evensen, Kari A. Indredavik.
(2013)
Motor skills at 23 years of age in young adults born preterm with very low birth weight.
Early Human Development
Vitenskapelig artikkel
2012
-
Brezova, Veronika;
Olsen, Alexander;
Skandsen, Toril;
Vik, Anne;
Håberg, Asta.
(2012)
Longitudinal study of grey and white matter changes from the acute to the chronic phase following moderate to severe TBI: volume changes related to duration of post-traumatic amnesia.
Brain Injury
Sammendrag/abstract
-
Halvorsen, Joar Øveraas;
Johnson, Sverre Urnes;
Olsen, Alexander;
Hagen, Roger.
(2012)
Fokus på forskning: Psykologforeningens hovedsatsningsområde 2013–2016.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
2011
-
Evandt, Jorunn Kristiane Plambeck;
Håberg, Asta;
Olsen, Alexander.
(2011)
Factor Analysis of Measures Computed form Data Collected by Means of Continous Performence Test Applied to Patients with Traumatic Brain Injury and Healthy Controls.
NTNU trykk
Mastergradsoppgave
-
Gotaas, Gunnar;
Hjemdal, Odin;
Håberg, Asta;
Olsen, Alexander.
(2011)
Depresjon blant pasienter med traumatisk hjerneskade i en norsk populasjon: forekomst og risikofaktorer.
NTNU trykk
Hovedfagsoppgave
2010
-
Halvorsen, Joar Øveraas;
Olsen, Alexander.
(2010)
Når kjøttvekt blir dødvekt.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Halvorsen, Joar Øveraas;
Olsen, Alexander.
(2010)
Profesjonen i endring: Når kjøttvekt blir dødvekt.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Halvorsen, Joar Øveraas;
Olsen, Alexander;
Stokke, Ragnhild Klingenberg.
(2010)
Fremdeles ubesvarte spørsmål.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
2009
-
Løvstad, Marianne;
Holte, Ingvil;
Olsen, Alexander.
(2009)
Koma og redusert bevissthet etter hjerneskade -Informasjonsbrosjyre for pårørende og omsorgsgivere.
Sunnaas sykehus
Oversatt bok
-
Olsen, Alexander;
Brunner, J;
Skandsen, Toril;
Berntsen, Erik Magnus;
Rasmussen, Inge Andre;
Håberg, Asta.
(2009)
SURVIVORS WITH CHRONIC SEVERE TRAUMATIC BRAIN INJURY HAVE SUBSTITUTION AND RECRUITMENT OF ADDITIONAL CORTICAL REGIONS DURING A MENTAL ARITHMETIC TASK.
Journal of Neurotrauma
Sammendrag/abstract
Tidsskriftspublikasjoner
-
Stubberud, Anker;
Ingvaldsen, Sigrid Hegna;
Brenner, Eiliv;
Winnberg, Ingunn Grøntveit;
Olsen, Alexander;
Gravdahl, Gøril Bruvik.
(2023)
Forecasting migraine with machine learning based on mobile phone diary and wearable data.
Cephalalgia
Vitenskapelig artikkel
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Eriksen, Adrian Dybfest;
Olsen, Alexander;
Sigmundsson, Hermundur.
(2023)
Exploring the relationships between visuospatial working memory, math, letter-sound knowledge, motor competence, and gender in first grade children: A correlational study.
Frontiers in Psychology
Vitenskapelig artikkel
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Smevik, Hanne;
Habli, Sarah;
Saksvik, Simen Berg;
Kliem, Elisabeth;
Evensmoen, Hallvard Røe;
Conde, Virginia.
(2023)
Poorer sleep health is associated with altered brain activation during cognitive control processing in healthy adults.
Cerebral Cortex
Vitenskapelig artikkel
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Matre, Martin;
Johansen, Truls Sveløkken;
Olsen, Alexander;
Tornås, Sveinung;
Martinsen, Anne Catrine Trægde;
Lund, Anne.
(2023)
A protocol for the development and validation of a virtual reality-based clinical test of social cognition.
BMC Digital Health
Vitenskapelig artikkel
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Gravråkmo, Sissel;
Henry, Lucy;
Olsen, Alexander;
Øie, Merete Glenne;
Lydersen, Stian;
Ingul, Jo Magne.
(2023)
Associations between intelligence, everyday executive functions, and symptoms of mental health problems in children and adolescents with mild intellectual disability.
International Journal of Developmental Disabilities (IJDD)
Vitenskapelig artikkel
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Sørengaard, Torhild Anita;
Langvik, Eva ;
Olsen, Alexander;
Saksvik-Lehouillier, Ingvild.
(2022)
Predictors of insomnia symptoms in police employees: a longitudinal investigation and comparison of personality and psychosocial work factors.
Cogent Psychology
Vitenskapelig artikkel
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Fure, Silje Christine Reistad;
Howe, Emilie;
Andelic, Nada;
Brunborg, Cathrine;
Olsen, Alexander;
Rike, Per-Ola.
(2022)
Workplace Factors Associated With Return to Work After Mild-to-Moderate Traumatic Brain Injury.
The journal of head trauma rehabilitation
Vitenskapelig artikkel
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Kliem, Elisabeth;
Labberton, Angela Susan;
Barra, Mathias;
Olsen, Alexander;
Thommessen, Bente;
Thomas, Owen Matthew Truscott.
(2022)
Self-reported cognitive and psychiatric symptoms at 3 months predict single-item measures of fatigue and daytime sleep 12 months after ischemic stroke.
Frontiers in Neurology
Vitenskapelig artikkel
-
Gravråkmo, Sissel;
Olsen, Alexander;
Lydersen, Stian;
Ingul, Jo Magne;
Henry, Lucy;
Øie, Merete Glenne.
(2022)
Associations between executive functions, intelligence and adaptive behaviour in children and adolescents with mild intellectual disability.
Journal of Intellectual Disabilities
Vitenskapelig artikkel
-
Olsen, Alexander;
Dennis, Emily L.;
Stubberud, Jan Egil;
Hovenden, Elizabeth S.;
Solbakk, Anne-Kristin;
Endestad, Tor.
(2022)
Regional brain volume prior to treatment is linked to outcome after cognitive rehabilitation in traumatic brain injury.
NeuroImage: Clinical
Vitenskapelig artikkel
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Ingvaldsen, Sigrid Hegna;
Tronvik, Erling Andreas;
Brenner, Eiliv;
Winnberg, Ingunn;
Olsen, Alexander;
Gravdahl, Gøril Bruvik.
(2021)
A biofeedback app for migraine: Development and usability study.
JMIR Formative Research
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Saksvik-Lehouillier, Ingvild;
Langvik, Eva ;
Saksvik, Simen Berg;
Kallestad, Håvard;
Follesø, Hanna Størksen;
Austad, Sigrun Borgen.
(2021)
High neuroticism is associated with reduced negative affect following sleep deprivation.
Personality and Individual Differences
Vitenskapelig artikkel
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Damanskyy, Yevhen;
Olsen, Alexander;
Hollup, Stig Arvid.
(2021)
Prior Prognostic Expectations as a Potential Predictor in Neurofeedback Training.
Journal of Cognitive Enhancement
Vitenskapelig artikkel
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Lauvsnes, Anders Dahlen Forsmo;
Langaas, Mette;
Olsen, Alexander;
Vassileva, Jasmin;
Spigset, Olav;
Gråwe, Rolf Wilhelm.
(2021)
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.
International Journal of Environmental Research and Public Health (IJERPH)
Vitenskapelig artikkel
-
Fordal, Linda;
Stenberg, Jonas;
Iverson, Grant L.;
Saksvik, Simen Berg;
Karaliute, Migle;
Vik, Anne.
(2021)
Trajectories of Persistent Postconcussion Symptoms and Factors Associated With Symptom Reporting After Mild Traumatic Brain Injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Follesø, Hanna Størksen;
Austad, Sigrun Borgen;
Olsen, Alexander;
Saksvik-Lehouillier, Ingvild.
(2021)
The development, inter-rater agreement and performance of a hierarchical procedure for setting the rest-interval in actigraphy data.
Sleep Medicine
Vitenskapelig artikkel
-
Fure, Silje Christine Reistad;
Howe, Emilie;
Spjelkavik, Øystein;
Røe, Cecilie;
Rike, Per-Ola;
Olsen, Alexander.
(2021)
Post-concussion symptoms three months after mild-to-moderate TBI: characteristics of sick-listed patients referred to specialized treatment and consequences of intracranial injury.
Brain Injury
Vitenskapelig artikkel
-
Fure, Silje Christine Reistad;
Howe, Emilie;
Andelic, Nada;
Brunborg, Cathrine;
Sveen, Unni;
Røe, Cecilie.
(2021)
Cognitive and vocational rehabilitation after mild-to-moderate traumatic brain injury: A randomised controlled trial.
Annals of Physical and Rehabilitation Medicine
Vitenskapelig artikkel
-
Kliem, Elisabeth;
Gjestad, Elise Ødegård;
Ryum, Truls;
Olsen, Alexander;
Thommessen, Bente;
Indredavik, Bent.
(2021)
The Relationship of Psychiatric Symptoms with Performance-Based and Self-Reported Cognitive Function After Ischemic Stroke.
Journal of the International Neuropsychological Society
Vitenskapelig artikkel
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Tahmasian, Masoud;
Aleman, André;
Andreassen, Ole;
Arab, Zahra;
Baillet, Marion;
Benedetti, Francesco.
(2021)
ENIGMA-Sleep: Challenges, opportunities, and the road map.
Journal of Sleep Research
Vitenskapelig oversiktsartikkel/review
-
Saksvik, Simen Berg;
Smevik, Hanne;
Stenberg, Jonas;
Follestad, Turid;
Vik, Anne;
Håberg, Asta.
(2021)
Poor sleep quality is associated with greater negative consequences for cognitive control function and psychological health after mild traumatic brain injury than after orthopedic injury.
Neuropsychology
Vitenskapelig artikkel
-
Sørengaard, Torhild Anita;
Olsen, Alexander;
Langvik, Eva ;
Saksvik-Lehouillier, Ingvild.
(2021)
Associations between Sleep and Work-Related Cognitive and Emotional Functioning in Police Employees.
SH@W Safety and Health at Work
Vitenskapelig artikkel
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Dennis, Emily L.;
Caeyenberghs, Karen;
Hoskinson, Kristen R;
Merkley, Tricia L;
Suskauer, Stacy J;
Asarnow, Robert F.
(2021)
White Matter Disruption in Pediatric Traumatic Brain Injury: Results From ENIGMA Pediatric Moderate to Severe Traumatic Brain Injury.
Neurology
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Karaliute, Migle;
Saksvik, Simen Berg;
Smevik, Hanne;
Follestad, Turid;
Einarsen, Cathrine Elisabeth;
Vik, Anne.
(2021)
Methodology Matters: Comparing Approaches for Defining Persistent Symptoms after Mild Traumatic Brain Injury.
Neurotrauma Reports
Vitenskapelig artikkel
-
Olsen, Alexander;
Babikian, Talin;
Bigler, Erin D.;
Caeyenberghs, Karen;
Conde, Virginia;
Dams-O’Connor, Kristen.
(2020)
Toward a global and reproducible science for brain imaging in neurotrauma: the ENIGMA adult moderate/severe traumatic brain injury working group.
Brain Imaging and Behavior
Vitenskapelig artikkel
-
Karlsen, Rune Hatlestad;
Karr, Justin E.;
Saksvik, Simen Berg;
Lundervold, Astri J. ;
Hjemdal, Odin;
Olsen, Alexander.
(2020)
Examining 3-month test-retest reliability and reliable change using the Cambridge Neuropsychological Test Automated Battery.
Applied neuropsychology: Adult
Vitenskapelig artikkel
-
Thompson, Paul M.;
Jahanshad, Neda;
Ching, Christopher R.K.;
Salminen, Lauren E.;
Thomopoulos, Sophia I.;
Bright, Joanna.
(2020)
ENIGMA and global neuroscience: A decade of large-scale studies of the brain in health and disease across more than 40 countries.
Translational Psychiatry
Vitenskapelig oversiktsartikkel/review
-
Olsen, Alexander;
Babikian, Talin;
Dennis, Emily L.;
Ellis-Blied, Monica U.;
Giza, Christopher C.;
Marion, Sarah DeBoard.
(2020)
Functional Brain Hyperactivations Are Linked to an Electrophysiological Measure of Slow Interhemispheric Transfer Time after Pediatric Moderate/Severe Traumatic Brain Injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Stubberud, Anker;
Linde, Mattias;
Brenner, Eiliv;
Heier, Martin;
Olsen, Alexander;
Aamodt, Anne Hege.
(2020)
Self-administered biofeedback treatment app for pediatric migraine: A randomized pilot study.
Brain and Behavior
Vitenskapelig artikkel
-
Dennis, Emily L.;
Baron, David;
Bartnik-Olson, Brenda L.;
Caeyenberghs, Karen;
Esopenko, Carrie;
Hillary, Frank G..
(2020)
ENIGMA brain injury: Framework, challenges, and opportunities.
Human Brain Mapping
Vitenskapelig oversiktsartikkel/review
-
Saksvik, Simen Berg;
Karaliute, Migle;
Kallestad, Håvard;
Follestad, Turid;
Asarnow, Robert F.;
Vik, Anne.
(2020)
The prevalence and stability of sleep-wake disturbance and fatigue throughout the first year after mild traumatic brain injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Olsen, Alexander;
Saksvik, Simen Berg;
Skandsen, Toril.
(2020)
Hjernerystelser kan gi langvarige søvnproblemer.
Aftenposten Viten
Populærvitenskapelig artikkel
-
Skandsen, Toril;
Stenberg, Jonas;
Follestad, Turid;
Karaliute, Migle;
Saksvik, Simen Berg;
Einarsen, Cathrine Elisabeth.
(2020)
Personal factors associated with postconcussion symptoms 3 months after mild traumatic brain injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Dennis, Emily L.;
Caeyenberghs, Karen;
Asarnow, Robert F.;
Babikian, Talin;
Bartnik-Olson, Brenda L.;
Bigler, Erin D.
(2020)
Challenges and opportunities for neuroimaging in young patients with traumatic brain injury: a coordinated effort towards advancing discovery from the ENIGMA pediatric moderate/severe TBI group.
Brain Imaging and Behavior
Vitenskapelig artikkel
-
Karlsen, Rune Hatlestad;
Saksvik, Simen Berg;
Stenberg, Jonas;
Lundervold, Astri J. ;
Olsen, Alexander;
Rautio, Ida.
(2020)
Examining the Subacute Effects of Mild Traumatic Brain Injury Using a Traditional and Computerized Neuropsychological Test Battery.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Vethe, Daniel;
Scott, Janine Linda;
Engstrøm, Morten;
Salvesen, Øyvind;
Sand, Trond;
Olsen, Alexander.
(2020)
The evening light environment in hospitals can be designed
to produce less disruptive effects on the circadian system and
improve sleep.
Sleep
Vitenskapelig artikkel
-
Saksvik-Lehouillier, Ingvild;
Saksvik, Simen Berg;
Dahlberg, Berit Johanna;
Tanum, Tiril Kristine;
Ringen, Heidi;
Karlsen, Håvard Rudi.
(2020)
Mild to moderate partial sleep deprivation is associated with increased impulsivity and decreased positive affect in young adults.
Sleep
Vitenskapelig artikkel
-
Stubberud, Anker;
Tronvik, Erling Andreas;
Olsen, Alexander;
Gravdahl, Gøril Bruvik;
Linde, Mattias.
(2020)
Biofeedback Treatment App for Pediatric Migraine: Development and Usability Study.
Headache
Vitenskapelig artikkel
-
Stenberg, Jonas;
Håberg, Asta;
Follestad, Turid;
Olsen, Alexander;
Iverson, Grant L.;
Terry P., Douglas.
(2019)
Cognitive Reserve Moderates Cognitive Outcome After Mild Traumatic Brain Injury.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Hollund, Ingrid Marie Husby;
Olsen, Alexander;
Skranes, Jon Sverre;
Brubakk, Ann-Mari;
Håberg, Asta;
Eikenes, Live.
(2018)
White matter alterations and their associations with motor function in young adults born preterm with very low birth weight.
NeuroImage: Clinical
Vitenskapelig artikkel
-
Solheim, Brandy;
Olsen, Alexander;
Kallestad, Håvard;
Langsrud, Knut;
Bjorvatn, Bjørn;
Gradisar, Michael.
(2018)
Cognitive performance in DSWPD patients upon awakening from habitual sleep compared with forced conventional sleep.
Journal of Sleep Research
Vitenskapelig artikkel
-
Stubberud, Anker;
Omland, Petter Moe;
Tronvik, Erling Andreas;
Olsen, Alexander;
Sand, Trond;
Linde, Mattias.
(2018)
Wireless Surface Electromyography and Skin Temperature Sensors for Biofeedback Treatment of Headache: Validation Study with Stationary Control Equipment.
JMIR Biomedical Engineering
Vitenskapelig artikkel
-
Dennis, Emily L.;
Babikian, Talin;
Alger, Jeffry;
Rashid, Faisal;
Villalon-Reina, Julio E.;
Jin, Yan.
(2018)
Magnetic resonance spectroscopy of fiber tracts in children with traumatic brain injury: A combined MRS - Diffusion MRI study.
Human Brain Mapping
Vitenskapelig artikkel
-
Omland, Petter Moe;
Tronvik, Erling Andreas;
Olsen, Alexander;
Sand, Trond;
Linde, Mattias.
(2018)
Wireless Surface Electromyography and Skin Temperature Sensors for Biofeedback Treatment of Headache: Validation Study with Stationary Control Equipment.
JMIR Biomedical Engineering
Vitenskapelig artikkel
-
Dennis, Emily L.;
Caeyenberghs, Karen;
Babikian, Talin;
Olsen, Alexander;
Giza, Christopher C.;
Asarnow, Robert F..
(2018)
ENIGMA pediatric msTBI: Preliminary results from meta-analysis of diffusion MRI.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Grambaite, Ramune;
Sundby, Jørgen;
Lundervold, Astri;
Solbakk, Anne-Kristin;
Hessen, Erik;
Olsen, Alexander.
(2018)
Undervisning i klinisk nevropsykologi på profesjonsstudiene i Norge.
Nevropsykologi : Medlemsblad for Norsk Nevropsykologisk Forening
Vitenskapelig oversiktsartikkel/review
-
Babikian, Talin;
Alger, Jeffry R.;
Ellis-Blied, Monica U.;
Giza, Christopher C.;
Dennis, Emily;
Olsen, Alexander.
(2018)
Whole Brain Magnetic Resonance Spectroscopic Determinants of Functional Outcomes in Pediatric Moderate/Severe Traumatic Brain Injury.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Stenberg, Jonas;
Håberg, Asta;
Olsen, Alexander;
Follestad, Turid;
Iverson, Grant L.;
Karaliute, Migle.
(2018)
Neurocognitive Functioning after Mild Traumatic Brain Injury: A Prospective Study Exploring Subgroups Reporting Symptoms.
Journal of Neurotrauma
Sammendrag/abstract
-
Stenberg, Jonas;
Håberg, Asta;
Olsen, Alexander;
Follestad, Turid;
Iverson, Grant L.;
Saksvik, Simen Berg.
(2018)
Cognitive Reserve and the Interaction between Premorbid IQ and Mild Traumatic Brain Injury.
Journal of Neurotrauma
Sammendrag/abstract
-
Olsen, Alexander;
Dennis, Emily L;
Evensen, Kari Anne Indredavik;
Hollund, Ingrid Marie Husby;
Løhaugen, Gro;
Thompson, Paul M.
(2017)
Preterm birth leads to hyper-reactive cognitive control processing and poor white matter organization in adulthood.
NeuroImage
Vitenskapelig artikkel
-
Karaliute, Migle;
Olsen, Alexander;
Saksvik, Simen Berg;
Einarsen, Cathrine Elisabeth;
Vik, Anne;
Håberg, Asta.
(2017)
Post-concussive symptoms the first year after mild traumatic brain injury: Preliminary results from a large prospective cohort study.
Brain Injury
Sammendrag/abstract
-
Dennis, Emily L;
Rashid, Faisal;
Ellis, Monica U;
Babikian, Talin;
Vlasova, Roza M;
Villalon-Reina, Julio E.
(2017)
Diverging white matter trajectories in children after traumatic brain injury.
Neurology
Vitenskapelig artikkel
-
Wohlwend, Martin Rainer;
Olsen, Alexander;
Håberg, Asta;
Palmer, Helen.
(2017)
Exercise Intensity-Dependent Effects on Cognitive Control Function during and after Acute Treadmill Running in Young Healthy Adults.
Frontiers in Psychology
Vitenskapelig artikkel
-
Bergersen, Kjersti;
Halvorsen, Joar Øveraas;
Tryti, Einar Aagaard;
Taylor, Solveig Isabel;
Olsen, Alexander.
(2017)
A systematic literature review of psychotherapeutic treatment of prolonged symptoms after mild traumatic brain injury.
Brain Injury
Vitenskapelig oversiktsartikkel/review
-
Husby, Ingrid Marie;
Stray, Kaia Mølbach-Thellefsen;
Olsen, Alexander;
Lydersen, Stian;
Indredavik, Marit Sæbø;
Brubakk, Ann-Mari.
(2016)
Long-term follow-up of mental health, health-related quality of life and associations with motor skills in young adults born preterm with very low birth weight.
Health and Quality of Life Outcomes
Vitenskapelig artikkel
-
Moen, Kent Gøran;
Vik, Anne;
Olsen, Alexander;
Skandsen, Toril;
Håberg, Asta;
Evensen, Kari Anne Indredavik.
(2016)
Traumatic axonal injury: Relationships between lesions in the early phase and diffusion tensor imaging parameters in the chronic phase of traumatic brain injury.
Journal of Neuroscience Research
Vitenskapelig artikkel
-
Aasen, Ida Emilia Sareneva;
Håberg, Asta;
Olsen, Alexander;
Brubakk, Ann-Mari;
Evensen, Kari Anne Indredavik;
Sølsnes, Anne Elisabeth.
(2016)
The relevance of the irrelevant: Attention and task-set adaptation in prematurely born adults.
Clinical Neurophysiology
Vitenskapelig artikkel
-
Ellis, Monica U.;
DeBoard Marion, Sarah;
McArthur, David L.;
Babikian, Talin;
Giza, Christopher;
Kernan, Claudia L..
(2016)
The UCLA study of children with moderate-to-severe traumatic brain injury: Event-related potential measure of interhemispheric transfer time.
Journal of Neurotrauma
Vitenskapelig artikkel
-
Olsen, Alexander;
Brunner, Jan Ferenc;
Evensen, Kari A. Indredavik;
Finnanger, Torun Gangaune;
Vik, Anne;
Skandsen, Toril.
(2015)
Altered Cognitive Control Activations after Moderate-to-Severe Traumatic Brain Injury and Their Relationship to Injury Severity and Everyday-Life function.
Cerebral Cortex
Vitenskapelig artikkel
-
Brunner, Jan Ferenc;
Olsen, Alexander;
Aasen, Ida Emilia Sareneva;
Løhaugen, Gro;
Håberg, Asta;
Kropotov, Yury.
(2015)
Neuropsychological parameters indexing executive processes are associated with independent components of ERPs.
Neuropsychologia
Vitenskapelig artikkel
-
Dennis, Emily L;
Ellis, Monica U;
Marion, Sarah D;
Jin, Yan;
Moran, Lisa;
Olsen, Alexander.
(2015)
Callosal function in pediatric traumatic brain injury linked to disrupted white matter integrity.
Journal of Neuroscience
Vitenskapelig artikkel
-
Finnanger, Torun Gangaune;
Olsen, Alexander;
Skandsen, Toril;
Lydersen, Stian;
Vik, Anne;
Evensen, Kari A. Indredavik.
(2015)
Life after adolescent and adult moderate and severe traumatic brain injury: self-reported executive, emotional, and behavioural function 2-5 years after injury.
Behavioural Neurology
Vitenskapelig artikkel
-
Håberg, Asta;
Olsen, Alexander;
Moen, Kent Gøran;
Schirmer-Mikalsen, Kari;
Visser, E;
Finnanger, Torun Gangaune.
(2015)
White matter microstructure in chronic moderate-to-severe traumatic brain injury: Impact of acute-phase injury-related variables and associations with outcome measures.
Journal of Neuroscience Research
Vitenskapelig artikkel
-
Moen, Kine Therese;
Jørgensen, Lone;
Olsen, Alexander;
Håberg, Asta;
Skandsen, Toril;
Vik, Anne.
(2014)
High-level mobility in chronic traumatic brain injury and its relationship with clinical variables and magnetic resonance imaging findings in the acute phase.
Archives of Physical Medicine and Rehabilitation
Vitenskapelig artikkel
-
Solheim, Brandy;
Langsrud, Knut;
Kallestad, Håvard;
Olsen, Alexander;
Bjorvatn, Bjørn;
Sand, Trond.
(2014)
Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients.
Sleep Medicine
Vitenskapelig artikkel
-
Brunner, Jan Ferenc;
Hansen, Tor Ivar;
Olsen, Alexander;
Skandsen, Toril;
Håberg, Asta;
Kropotov, Yury.
(2013)
Long-term test-retest reliability of the P3 No Go wave and two independent components decomposed from the P3 No Go wave in a visual Go/NoGo task.
International Journal of Psychophysiology
Vitenskapelig artikkel
-
Olsen, Alexander;
Brunner, Jan Ferenc;
Evensen, Kari A. Indredavik;
de Cisneros, Benjamín Garzón Jiménez;
Landrø, Nils Inge;
Håberg, Asta.
(2013)
The Functional Topography and Temporal Dynamics of Overlapping and Distinct Brain Activations for Adaptive Task Control and Stable Task-set Maintenance during Performance of an fMRI-adapted Clinical Continuous Performance Test.
Journal of Cognitive Neuroscience
Vitenskapelig artikkel
-
Husby, Ingrid Marie;
Skranes, Jon;
Olsen, Alexander;
Brubakk, Ann-Mari;
Evensen, Kari A. Indredavik.
(2013)
Motor skills at 23 years of age in young adults born preterm with very low birth weight.
Early Human Development
Vitenskapelig artikkel
-
Brezova, Veronika;
Olsen, Alexander;
Skandsen, Toril;
Vik, Anne;
Håberg, Asta.
(2012)
Longitudinal study of grey and white matter changes from the acute to the chronic phase following moderate to severe TBI: volume changes related to duration of post-traumatic amnesia.
Brain Injury
Sammendrag/abstract
-
Halvorsen, Joar Øveraas;
Johnson, Sverre Urnes;
Olsen, Alexander;
Hagen, Roger.
(2012)
Fokus på forskning: Psykologforeningens hovedsatsningsområde 2013–2016.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Halvorsen, Joar Øveraas;
Olsen, Alexander.
(2010)
Når kjøttvekt blir dødvekt.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Halvorsen, Joar Øveraas;
Olsen, Alexander.
(2010)
Profesjonen i endring: Når kjøttvekt blir dødvekt.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Halvorsen, Joar Øveraas;
Olsen, Alexander;
Stokke, Ragnhild Klingenberg.
(2010)
Fremdeles ubesvarte spørsmål.
Tidsskrift for Norsk Psykologforening
Leserinnlegg
-
Olsen, Alexander;
Brunner, J;
Skandsen, Toril;
Berntsen, Erik Magnus;
Rasmussen, Inge Andre;
Håberg, Asta.
(2009)
SURVIVORS WITH CHRONIC SEVERE TRAUMATIC BRAIN INJURY HAVE SUBSTITUTION AND RECRUITMENT OF ADDITIONAL CORTICAL REGIONS DURING A MENTAL ARITHMETIC TASK.
Journal of Neurotrauma
Sammendrag/abstract
Rapport
-
Olsen, Alexander;
Håberg, Asta;
Landrø, Nils Inge.
(2014)
Cognitive control function and moderate-to-severe traumatic brain injury : functional and structural brain correlates.
Doktoravhandlinger ved NTNU (372)
Doktorgradsavhandling
-
Evandt, Jorunn Kristiane Plambeck;
Håberg, Asta;
Olsen, Alexander.
(2011)
Factor Analysis of Measures Computed form Data Collected by Means of Continous Performence Test Applied to Patients with Traumatic Brain Injury and Healthy Controls.
NTNU trykk
Mastergradsoppgave
-
Gotaas, Gunnar;
Hjemdal, Odin;
Håberg, Asta;
Olsen, Alexander.
(2011)
Depresjon blant pasienter med traumatisk hjerneskade i en norsk populasjon: forekomst og risikofaktorer.
NTNU trykk
Hovedfagsoppgave
OVERSETTELSESARB
-
Løvstad, Marianne;
Holte, Ingvil;
Olsen, Alexander.
(2009)
Koma og redusert bevissthet etter hjerneskade -Informasjonsbrosjyre for pårørende og omsorgsgivere.
Sunnaas sykehus
Oversatt bok
Undervisning
Emner
Formidling
2022
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Populærvitenskapelig foredragTronvik, Erling Andreas; Olsen, Alexander; Tari, Atefe R; Heuch, Cathrine Ro; Thomlison, Jaya Syltern. (2022) Hjernehelse: Seaside chat NorHEAD and Kavli. NTNU og NorHEAD Hyfer - NTNUs kunnskapsfestival , Havet arena, Trondheim 2022-09-24 -
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PosterKliem, Elisabeth; Labberton, Angela Susan; Barra, Mathias; Gjestad, Elise Ødegård; Olsen, Alexander; Thommessen, Bente. (2022) Self-reported mental distress at 3 months predicts daytime sleep and fatigue 12 months after ischemic stroke: A structural equation modeling analysis. ESOC 2022 2022-05-04 - 2022-05-06
2020
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PosterKliem, Elisabeth; Gjestad, Elise Ødegård; Ryum, Truls; Olsen, Alexander; Thommessen, Bente; Indredavik, Bent. (2020) Relations Between Psychiatric Symptoms, Performance-based and Self-Reported Cognitive Function After Stroke . ESO-WSO 2020 2020-11-07 - 2020-11-09
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IntervjuSkandsen, Toril; Olsen, Alexander; Stenberg, Jonas. (2020) Grethe (35) gløymde sykkelhjelm – no må ho leve med kronisk hovudverk. nrk.no nrk.no [Internett] 2020-07-22
2019
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PosterKarlsen, Håvard Rudi; Langvik, Eva ; Olsen, Alexander; Saksvik, Simen Berg; Sørengaard, Torhild Anita; Saksvik-Lehouillier, Ingvild. (2019) Exploring the relationships between the facets of NEO-PI-3 and cognitive control functioning. Cognitive Neuroscience Society 26th annual meeting of the Cognitive Neuroscience Society , San Francisco 2019-03-23 - 2019-03-26
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PosterKliem, Elisabeth; Olsen, Alexander; Indredavik, Bent; Grambaite, Ramune. (2019) Cognitive and Emotional Functioning Post-Stroke - Cross-Sectional and Longitudinal Evidence From Two Cohorts. 7th National PhD Conference in Neuroscience 2019-09-25 - 2019-09-27
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PosterSaksvik-Lehouillier, Ingvild; Saksvik, Simen Berg; Karlsen, Håvard Rudi; Langvik, Eva ; Sørengaard, Torhild Anita; Olsen, Alexander. (2019) The effect of partial sleep deprivation on cognitive control functioning: The SLEEPIC study. Cognitive Neuroscience Society 2019 Annual Meeting 2019-03-23 - 2019-03-26
2018
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PosterStenberg, Jonas; Håberg, Asta; Olsen, Alexander; Follestad, Turid; Iverson, Grant L.; Karaliute, Migle. (2018) Neurocognitive Functioning after Mild Traumatic Brain Injury: A Prospective Study Exploring Subgroups Reporting Symptoms. The International and National Neurotrauma Societies The 3rd Joint Symposium of the International and National Neurotrauma Societies and AANS/CNS Section on Neurotrauma and Critical Care , Toronto 2018-08-11 - 2018-08-16
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PosterStenberg, Jonas; Håberg, Asta; Olsen, Alexander; Follestad, Turid; Iverson, Grant L.; Saksvik, Simen Berg. (2018) Cognitive Reserve and the Interaction between Premorbid IQ and Mild Traumatic Brain Injury. The International and National Neurotrauma Societies The 3rd Joint Symposium of the International and National Neurotrauma Societies and AANS/CNS Section on Neurotrauma and Critical Care , Toronto 2018-08-11 - 2018-08-16
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Faglig foredragKaraliute, Migle; Saksvik, Simen Berg; Einarsen, Cathrine Elisabeth; Vik, Anne; Iverson, Grant L.; Skandsen, Toril. (2018) Methodology Matters: Comparing Approaches for Defining Persistent Symptoms Following Mild Traumatic Brain Injury. European Academy of Neurology 4th Congress of European Academy of Neurology , Lisbon 2018-06-16 - 2018-06-19
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Vitenskapelig foredragSaksvik-Lehouillier, Ingvild; Langvik, Eva ; Saksvik, Simen Berg; Dahlgren, Johanna; Tanum, Tiril; Ringen, Heidi. (2018) Personality, sleep, and consequences of sleep deprivation: A multi-method approach . European conference on personality 2018-07-17 - 2018-07-21
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Vitenskapelig foredragSaksvik-Lehouillier, Ingvild; Langvik, Eva ; Saksvik, Simen Berg; Sørengaard, Torhild Anita; Olsen, Alexander. (2018) Cognitive and affective functioning as a result of work onset after partial sleep deprivation: The SLEEPIC study. The 13th European Academy of Occupational Health Psychology Conference 2018-09-04 - 2018-09-07
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PosterSaksvik, Simen Berg; Karaliute, Migle; Kallestad, Håvard; Karlsen, Rune Hatlestad; Follestad, Turid; Asarnow, Robert F.. (2018) The Prevalence and Stability of Sleep-Wake Disturbance and Fatigue Following Mild Traumatic Brain Injury. Society for Neuroscience Neuroscience 2018 , San Diego, CA 2018-11-03 - 2018-11-07
2017
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Vitenskapelig foredragKaraliute, Migle; Olsen, Alexander; Saksvik, Simen Berg; Einarsen, Cathrine Elisabeth; Vik, Anne; Håberg, Asta. (2017) Post-concussive symptoms the first year after mild traumatic brain injury: Preliminary results from a large prospective cohort study. Brain Injury Association The International Brain Injury Association’s 12th World Congress on Brain Injury , New Orleans, Louisiana 2017-03-29 - 2017-04-01
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PosterSaksvik, Simen Berg; Karaliute, Migle; Kallestad, Håvard; Karlsen, Rune Hatlestad; Skandsen, Toril; Olsen, Alexander. (2017) Sleep disturbances and fatigue predicts post-concussive symptoms 12 months after mild traumatic brain injury. International Brain Injury Association The International Brain Injury Association’s 12th World Congress on Brain Injury , New Orleans, Louisiana. 2017-03-29 - 2017-04-01
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PosterHollund, Ingrid Marie Husby; Eikenes, Live; Olsen, Alexander; Skranes, Jon Sverre; Brubakk, Ann-Mari; Håberg, Asta. (2017) White matter alterations and associations with motor function in very low birth weight young adults. Society of Pediatric Research Pediatric Academic Society Annual Meeting 2017 , San Francisco, CA 2017-05-06 - 2017-05-09
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PosterSaksvik-Lehouillier, Ingvild; Saksvik, Simen Berg; Langvik, Eva ; Olsen, Alexander. (2017) The effect of individual differences and partial sleep deprivation on cognitive and affective functioning: Preliminary results from the SLEEPIC Study . Nordic Sleep conference 2017-05-24 - 2017-05-26
2016
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PosterKaraliute, Migle; Skandsen, Toril; Eikenes, Live; Håberg, Asta; Olsen, Alexander. (2016) Recovery after mild TBI; advanced imaging, cognition, emotion and therapy. Norwegian Research School in Neuroscience NRSN The 4th National PhD Conference in Neuroscience , Hurdal 2016-09-21 - 2016-09-23
2015
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Intervju
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Vitenskapelig foredragEvensen, Kari A. Indredavik; Husby, Ingrid Marie; Olsen, Alexander; Skranes, Jon Sverre; Brubakk, Ann-Mari; Håberg, Asta. (2015) RELATIONSHIP BETWEEN DIFFUSION TENSOR IMAGING AND FINE MOTOR FUNCTION IN YOUNG ADULTS BORN WITH VERY LOW BIRTH WEIGHT. European Society for Neonatalogy/Pediatric Research 1st Congress of joint European Neonatal Societies (jENS) , Budapest 2015-09-16 - 2015-09-20
2014
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Vitenskapelig foredragFinnanger, Torun Gangaune; Olsen, Alexander; Skandsen, Toril; Lydersen, Stian; Vik, Anne; Evensen, Kari A. Indredavik. (2014) Diffuse Axonal Injury on early MRI is associated with executive problems and emotional and behavioral symptoms 3-5 years after Traumatic Brain Injury. IBIA's Tenth World Congress on Brain Injury , San Francisco 2014-03-19 - 2014-03-21
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Vitenskapelig foredragFinnanger, Torun Gangaune; Olsen, Alexander; Skandsen, Toril; Lydersen, Stian; Vik, Anne; Evensen, Kari A. Indredavik. (2014) Can depressive symptoms and global function in the first year after Traumatic Brain Injury predict executive problems and emotional and behavioral symptoms 3-5 years post-injury?. IBIA's Tenth World Congress on Brain Injury , SanFrancisco 2014-03-19 - 2014-03-22
2013
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Vitenskapelig foredragMoen, Kent Gøran; Vik, Anne; Olsen, Alexander; Skandsen, Toril; Håberg, Asta; Eikenes, Live. (2013) Traumatic axonal injury in moderate and severe head injury - relationship between conventional MRI findings in the acute phase and diffusion tensor imaging findings in the chronic phase. Scandinavian Neurosurgical Society SNS annual meeting 2013 , Reykjavik 2013-06-05 - 2013-06-08
2012
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PosterWohlwend, Martin; Olsen, Alexander; Håberg, Asta; Palmer, Helen. (2012) The effect of exercise on executive function – Investigating an alternative explanation for “Runner’s High”. The Physiological Society: The Biomedical Basis of Elite Performance (BBEP) 2012-03-19 - 2012-03-21
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PosterWohlwend, Martin; Olsen, Alexander; Håberg, Asta; Palmer, Helen. (2012) Investigating the reticular-activating hypofrontality model of acute exercise with Conner´s Continuous Performance test in combination with treadmill running and transcranial direct current stimulation. Society for Neuroscience 2012-10-13 - 2012-10-17
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PosterMoen, Kent Gøran; Vik, Anne; Håberg, Asta; Olsen, Alexander; Skandsen, Toril; Eikenes, Live. (2012) Traumatic axonal injuries in patients with moderat to servere traumatic brain injury: The relationship between non-hemorrhagic MRI findings in early phase with diffusion tensor imaging findings in chronic phase. CNS annual, meeting , Illinois, Chicago 2012-10-06 - 2012-10-10
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PosterWohlwend, Martin; Olsen, Alexander; Håberg, Asta; Palmer, Helen. (2012) The effect of exercise on executive function - Investigating and alternative explanation for "Runner's High". The Physiological Society The Biomedical Basis of Elite Performance , London 2012-03-19 - 2012-03-21
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PosterBrunner, Jan Ferenc; Hansen, Tor Ivar; Olsen, Alexander; Skandsen, Toril; Håberg, Asta; Kropotov, Yury. (2012) Longterm test-retest reliability of visual event related potentials in a two stimulius Go/NoGo task. International Neuropsychological Association International Neuropsychological Association Conference , Oslo 2012-06-27 - 2012-06-30
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PosterHamborg, Inger Helene; Evensen, Kari A. Indredavik; Olsen, Alexander; Skranes, Jon; Brubakk, Ann-Mari; Vereijken, Beatrix. (2012) High level mobility in adults born with very low birth weight and adults with traumatic brain injury. Joint World Congress of Gait & Mental Function , Trondheim 2012-06-24 - 2012-06-28
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PosterWohlwend, Martin; Hoad, Damon; Olsen, Alexander; Håberg, Asta; Palmer, Helen. (2012) Investigating the reticular-activating hypofrontality model of acute exercise with Conner´s Continuous Performance test in combination with treadmill running and transcranial direct current stimulation. Society for Neuroscience annual meeting 2012-10-13 - 2012-10-17
2011
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Vitenskapelig foredragEvensen, Kari A. Indredavik; Lund, Selma; Olsen, Alexander; Eikenes, Live; Håberg, Asta; Skranes, Jon. (2011) Motor skills and advanced gross motor performance correlate with white matter microstructure in adults with very low birth weight. European Society of Pediatric Research ESPR annual meeting 2011 , Newcastle 2011-10-14 - 2011-10-17
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PosterEvensen, Kari A. Indredavik; Hamborg, Inger Helene; Olsen, Alexander; Håberg, Asta; Skranes, Jon; Brubakk, Ann-Mari. (2011) HIGH LEVEL MOBILITY ASSESSMENT TOOL USED IN ADULTS WITH VERY LOW BIRTH WEIGHT. Pediatric Academic Societies Pediatric Academic Societies Annual Meeting , Denver 2011-04-30 - 2011-05-03
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PosterEvensen, Kari A. Indredavik; Hamborg, Inger Helene; Olsen, Alexander; Håberg, Asta; Skranes, Jon; Brubakk, Ann-Mari. (2011) MOTOR SKILLS IN YOUNG ADULTS WITH VERY LOW BIRTH WEIGHT. Pediatric Academies Societies Pediatric Academies Societies Annual Meeting , Denver 2011-04-30 - 2011-05-03
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PosterEvensen, Kari A. Indredavik; Lund, Selma; Hamborg, Inger Helene; Olsen, Alexander; Håberg, Asta; Skranes, Jon. (2011) MOTOR SKILLS AND ADVANCED GROSS MOTOR PERFORMANCE IN ADULTS WITH VERY LOW BIRTH WEIGHT. European Academy of Childhood Diseases European Academy of Childhood Diseases , Roma 2011-06-08 - 2011-06-11
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Vitenskapelig foredragBrezova, Veronika; Olsen, Alexander; Skandsen, Toril; Vik, Anne; Håberg, Asta. (2011) Longitudinal study of grey and white matter changes from the acute to the chronic phase following moderate to severe TBI. Norwegian Research School in Medical Imaging The 3rd Norwegian PhD Conference in Medical Imaging , Oslo 2011-11-21 - 2011-11-22
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PosterBrezova, Veronika; Olsen, Alexander; Skandsen, Toril; Vik, Anne; Håberg, Asta. (2011) Longitudinal study of the effect of traumatic brain injury on lateral ventricle and hippocampal volumes using fully automated MRI volumetry. German Neuroscience Society Ninth Gottingen meeting of the German Neuroscience Society , Gottingen 2011-03-11 - 2011-03-15
2010
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Vitenskapelig foredragOlsen, Alexander. (2010) Kan funksjonell MRI bidra til økt forståelse av kognitive plager etter traumatisk hjerneskade?. St. Olavs Hospital Fredagsforelesning ved St. Olavs Hospital , Trondheim 2010-12-10 -
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Vitenskapelig foredragOlsen, Alexander. (2010) Cognitive control in survivors with traumatic brain injury: an fMRI study. University of California, Berkeley Vitenskapelig foredrag ved Helen Wills Neuroscience Institute, University of California, Berkeley , Berkeley 2010-11-22 - 2010-11-22
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PosterOlsen, Alexander; Brunner, Jan Ference; Evensen, Kari A. Indredavik; Finnanger, Torun G; Skandsen, Toril; Vik, Anne. (2010) Survivors of moderate to severe traumatic brain injury demonstrate increased event-related activity during conflict processing and decreased block-related activity during sustained attention in an fMRI adapted continuous performance test. Society for Neuroscience The Society for Neuroscience 2010 Annual Meeting , San Diego 2010-11-13 - 2010-11-17
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PosterBrunner, Jan Ference; Olsen, Alexander; Kropotov, Yury; Håberg, Asta. (2010) Survivors of moderate to servere traumatic brain injury demonstrate decreased event related P3 NOGO amplitude during conflict prosessing compared to healthy controls. Society for Neuroscience The Society for Neuroscience 2010 Annual Meeting , San Diego 2010-11-13 - 2010-11-13
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Vitenskapelig foredragOlsen, Alexander. (2010) Advanced MRI in diagnosis and prediction of outcome in survivors with traumatic brain injury (TBI). Klinikk for Bildediagnostikk, St. Olavs Hospital Klinikk for bildediagnostikk, St. Olavs Hospital , Trondheim 2010-11-04 - 2010-11-04
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Vitenskapelig foredragOlsen, Alexander. (2010) Undersøkelse av oppmerksomhetsfunksjon hos hodeskadepasienter ved hjelp av fMRI. Klinikk for fysikalsk medisin og rehabilitering, St. Olavs H Undervisning for ass.leger, klinikk for fysikalsk medisin og rehabilitering, St. Olavs Hospital , Trondheim 2010-10-28 - 2010-10-28
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Vitenskapelig foredragOlsen, Alexander. (2010) Traumatiske hodeskader: vanlige problemer i senfase og aktuelle tiltak. Klinikk for fysikalsk medisin og rehabilitering, St. Olavs H Undervisning for ass.leger, klinikk for fysikalsk medisin og rehabilitering, St. Olavs Hospital , Trondheim 2010-02-25 - 2010-02-25
2009
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PosterBrunner, Jan; Rochmann, Lone; Olsen, Alexander. (2009) ERP-component as a possible marker of visuo-spatial neglect. Society for Neuroscience The Society for Neuroscience 2009 Annual Meeting , Chicago 2009-10-17 - 2009-10-21
2007
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PosterOlsen, Alexander; Hollup, Stig Arvid; Hestad, Knut; Kropotov, Yury. (2007) Theta synchronization related to human spatial navigation in a real environment. Society for Neuroscience annual meeting 2007-11-03 - 2007-11-07
2006
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PosterHollup, Stig Arvid; Olsen, Alexander; Hestad, Knut; Kropotov, Juri. (2006) Neural Activity During a Mental Rotation Task; Parameters for Individually Adapted Neurofeedback Training. The Society of Applied Neuroscience The Society of Applied Neuroscience 2006 Inaugural Conference , Swansea, Wales 2006-09-13 - 2006-09-19
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PosterOlsen, Alexander; Thorsen, Linda; Hollup, Stig Arvid; Kropotov, Yury. (2006) The effect of individually adapted neurofeedback protocols for enhancing cognitive performance in normal subjects. The Society for Neuroscience The Society for Neuroscience 2006 Annual Meeting , Atlanta, Georgia 2006-10-14 - 2006-10-18