Blar i NTNU Open på forfatter "Hagen, Knut"
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Visual evoked potentials in migraine: Is the "neurophysiological hallmark" concept still valid?
Hagen, Knut; Sand, Trond; Uglem, Martin; Tronvik, Erling Andreas; Linde, Mattias; Omland, Petter Moe (Journal article; Peer reviewed, 2016)Objective: Lack of habituation is considered a neurophysiological hallmark of migraine. However, the results of visual evoked potential (VEP) studies have been discrepant, possibly because of different stimulation parameters ... -
Volume and shape of subcortical grey matter structures related to headache: A cross-sectional population-based imaging study in the Nord-Trøndelag Health Study
Husøy, Andreas Kattem; Pintzka, Carl Wolfgang Schøyen; Eikenes, Live; Håberg, Asta; Hagen, Knut; Linde, Mattias; Stovner, Lars Jacob (Journal article; Peer reviewed, 2018)Background The relationship between subcortical nuclei and headache is unclear. Most previous studies were conducted in small clinical migraine samples. In the present population-based MRI study, we hypothesized that ... -
White matter hyperintensities and headache: A population-based imaging study (HUNT MRI)
Honningsvåg, Lasse-Marius; Håberg, Asta; Hagen, Knut; Kvistad, Kjell Arne; Stovner, Lars Jacob; Linde, Mattias (Journal article; Peer reviewed, 2018)Objective To examine the relationship between white matter hyperintensities and headache. Methods White matter hyperintensities burden was assessed semi-quantitatively using Fazekas and Scheltens scales, and by manual ... -
Work-Related Mental Fatigue, Physical Activity and Risk of Insomnia Symptoms: Longitudinal Data from the Norwegian HUNT Study
Skarpsno, Eivind S.; Nilsen, Tom Ivar Lund; Sand, Trond; Hagen, Knut; Mork, Paul Jarle (Journal article; Peer reviewed, 2019)Objective/Background: To examine the prospective association between work-related mental fatigue and risk of insomnia symptoms, and if leisure time physical activity modifies this association. Participants: A total of ...