Browsing St. Olavs hospital by Author "Saksvik, Simen Berg"
Now showing items 1-12 of 12
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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 ... -
Developing Cognition Endpoints for the CENTER-TBI Neuropsychological Test Battery
Stenberg, Jonas; Karr, Justin E.; Terry, Douglas P.; Saksvik, Simen Berg; Vik, Anne; Skandsen, Toril; Silverberg, Noah D.; Iverson, Grant L. (Peer reviewed; Journal article, 2020)Background: Measuring cognitive functioning is common in traumatic brain injury (TBI) research, but no universally accepted method for combining several neuropsychological test scores into composite, or summary, scores ... -
Digital cognitive behaviour therapy for insomnia in individuals with self-reported insomnia and chronic fatigue: A secondary analysis of a large scale randomized controlled trial
Ramfjord, Lina Stålesen; Faaland, Patrick Michael Palmelund; Scott, Janine Linda; Saksvik, Simen Berg; Lydersen, Stian; Vedaa, Øystein; Kahn, Nikolaj; Langsrud, Knut; Stiles, Tore Charles; Ritterband, Lee M.; Harvey, Allison G.; Sivertsen, Børge; Kallestad, Håvard (Peer reviewed; Journal article, 2023)Insomnia is associated with fatigue, but it is unclear whether response to cognitive behaviour therapy for insomnia is altered in individuals with co-occurring symptoms of insomnia and chronic fatigue. This is a secondary ... -
Digital cognitive-behavioural therapy for insomnia compared with digital patient education about insomnia in individuals referred to secondary mental health services in Norway: Protocol for a multicentre randomised controlled trial
Kallestad, Håvard; Saksvik, Simen Berg; Vedaa, Øystein; Langsrud, Knut; Morken, Gunnar; Lydersen, Stian; Simpson, Melanie Rae; Dørheim, Signe Karen; Holmøy, Bjørn; Germans Selvik, Sara; Hagen, Kristen; Stiles, Tore C; Harvey, Allison G.; Ritterband, Lee M.; Sivertsen, Børge; Scott, Janine Linda (Peer reviewed; Journal article, 2021)Introduction Insomnia is highly prevalent in outpatients receiving treatment for mental disorders. Cognitive–behavioural therapy for insomnia (CBT-I) is a recommended first-line intervention. However, access is limited and ... -
Dysfunctional beliefs and attitudes about sleep (DBAS) mediate outcomes in dCBT-I on psychological distress, fatigue, and insomnia severity
Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Saksvik, Simen Berg; Vestergaard, Cecilie Lund; Kjørstad, Kaia; Vethe, Daniel; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore Charles; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2023)Objective/background Digital cognitive behavioral therapy for insomnia (dCBT-I) improves several sleep and health outcomes in individuals with insomnia. This study investigates whether changes in Dysfunctional Beliefs and ... -
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 ... -
High neuroticism is associated with reduced negative affect following sleep deprivation
Saksvik-Lehouillier, Ingvild; Langvik, Eva; Saksvik, Simen Berg; Kallestad, Håvard; Follesø, Hanna Størksen; Austad, Sigrun Borgen; Dahlberg, Johanna; Ringen, Heidi; Tanum, Tiril Kristine; Sørengaard, Torhild Anita; Karlsen, Håvard Rudi; Smedbøl, Trine; Olsen, Alexander (Peer reviewed; Journal article, 2021)The aim was to investigate how neuroticism moderates the affective consequences of personalized mild-moderate partial sleep deprivation. A total of 52 healthy subjects aged 18–35 years completed the NEO PI-3 at baseline, ... -
Methodology Matters: Comparing Approaches for Defining Persistent Symptoms after Mild Traumatic Brain Injury
Karaliute, Migle; Saksvik, Simen Berg; Smevik, Hanne; Follestad, Turid; Einarsen, Cathrine Elisabeth; Vik, Anne; Håberg, Asta; Iverson, Grant L.; Skandsen, Toril; Olsen, Alexander (Peer reviewed; Journal article, 2021)Some people experience persistent post-concussion symptoms (PPCS) after mild traumatic brain injury (mTBI). A meaningful clinical classification and scientific progress are hampered by a lack of consensus regarding the ... -
Mild to moderate partial sleep deprivation is associated with increased impulsivity and decreased positive affect in young adults
Saksvik-Lehouillier, Ingvild; Saksvik, Simen Berg; Dahlberg, Berit Johanna; Tanum, Tiril Kristine; Ringen, Heidi; Karlsen, Håvard Rudi; Smedbøl, Trine; Sørengaard, Torhild Anita; Stople, Mailen; Kallestad, Håvard; Olsen, Alexander (Peer reviewed; Journal article, 2020)The effects of mild–moderate partial sleep deprivation on affective and cognitive functioning were evaluated in a naturalistic home environment, mimicking short sleep typically caused by demands from work or society. A ... -
Poorer sleep health is associated with altered brain activation during cognitive control processing in healthy adults
Smevik, Hanne; Habli, Sarah; Saksvik, Simen Berg; Kliem, Elisabeth; Evensmoen, Hallvard Røe; Conde, Virginia; Petroni, Agustin; Asarnow, Robert F.; Dennis, Emily L.; Eikenes, Live; Kallestad, Håvard; Sand, Trond Halfdan; Thompson, Paul M.; Saksvik-Lehouillier, Ingvild; Håberg, Asta; Olsen, Alexander (Peer reviewed; Journal article, 2023)This study investigated how proactive and reactive cognitive control processing in the brain was associated with habitual sleep health. BOLD fMRI data were acquired from 81 healthy adults with normal sleep (41 females, age ... -
The prevalence and stability of sleep-wake disturbance and fatigue throughout the first year after mild traumatic brain injury
Saksvik, Simen Berg; Karaliute, Migle; Kallestad, Håvard; Follestad, Turid; Asarnow, Robert F.; Vik, Anne; Håberg, Asta; Skandsen, Toril; Olsen, Alexander (Peer reviewed; Journal article, 2020)In this prospective, longitudinal study, we aimed to determine the prevalence and stability of sleep-wake disturbance (SWD) and fatigue in a large representative sample of patients (Trondheim mild traumatic brain injury ... -
Trajectories of Persistent Postconcussion Symptoms and Factors Associated With Symptom Reporting After Mild Traumatic Brain Injury
Fordal, Linda; Stenberg, Jonas; Iverson, Grant L.; Saksvik, Simen Berg; Karaliute, Migle; Vik, Anne; Olsen, Alexander; Skandsen, Toril (Peer reviewed; Journal article, 2021)Objective To examine the trajectories of persistent postconcussion symptoms (PPCS) after mild traumatic brain injury (MTBI) and to investigate which injury-related and personal factors are associated with symptom reporting. ...