Blar i Institutt for sirkulasjon og bildediagnostikk på forfatter "Olsen, Alexander"
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Cognitive Control Function and Moderate-to-Severe Traumatic Brain Injury: Functional and Structural Brain Correlates
Olsen, Alexander (Doctoral theses at NTNU;2014:372, Doctoral thesis, 2014)Clinical signs of traumatic brain injury (TBI) such as altered- or complete loss of consciousness, other neurological signs, and findings based on conventional neuroimaging, represents important information for initial ... -
Exercise Intensity-Dependent Effects on Cognitive Control Function during and after Acute Treadmill Running in Young Healthy Adults
Wohlwend, Martin Rainer; Olsen, Alexander; Håberg, Asta; Palmer, Helen (Journal article; Peer reviewed, 2017)The idea that physical activity differentially impacts upon performance of various cognitive tasks has recently gained increased interest. However, our current knowledge about how cognition is altered by acute physical ... -
Life after adolescent and adult moderate and severe traumatic brain injury: self-reported executive, emotional, and behavioural function 2-5 years after injury
Finnanger, Torun Gangaune; Olsen, Alexander; Skandsen, Toril; Lydersen, Stian; Vik, Anne; Evensen, Kari A. Indredavik; Catroppa, Cathy; Håberg, Asta; Andersson, Stein; Indredavik, Marit Sæbø (Peer reviewed; Journal article, 2015)Survivors of moderate-severe Traumatic Brain Injury (TBI) are at risk for long-term cognitive, emotional, and behaviouralproblems. This prospective cohort study investigated self-reported executive, emotional, and behavioural ... -
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
Husby, Ingrid Marie; Stray, Kaia; Olsen, Alexander; Lydersen, Stian; Indredavik, Marit Sæbø; Brubakk, Ann-Mari; Skranes, Jon Sverre; Evensen, Kari Anne Indredavik (Journal article; Peer reviewed, 2016)Background: Being born with very low birth weight(VLBW:≤1500 g) is related to long-term disability and neurodevelopmental problems, possibly affecting mental health and health-related quality of life (HRQoL). However, ... -
Preterm birth leads to hyper-reactive cognitive control processing and poor white matter organization in adulthood
Olsen, Alexander; Dennis, Emily L; Evensen, Kari Anne Indredavik; Hollund, Ingrid Marie Husby; Løhaugen, Gro; Thompson, Paul M; Brubakk, Ann-Mari; Eikenes, Live; Håberg, Asta (Peer reviewed; Journal article, 2017)Individuals born preterm with very low birth weight (VLBW; birth weight ≤ 1500 g) are at high risk for perinatal brain injuries and deviant brain development, leading to increased chances of later cognitive, emotional, and ... -
Traumatic axonal injury: Relationships between lesions in the early phase and diffusion tensor imaging parameters in the chronic phase of traumatic brain injury
Moen, Kent Gøran; Vik, Anne; Olsen, Alexander; Skandsen, Toril; Håberg, Asta; Evensen, Kari Anne Indredavik; Eikenes, Live (Journal article; Peer reviewed, 2016)This prospective study of traumatic brain injury (TBI) patients investigates fractional anisotropy (FA) from chronic diffusion tensor imaging (DTI) in areas corresponding to persistent and transient traumatic axonal injury ...