Blar i NTNU Open på forfatter "Smith, Otto Robert Frans"
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Age and gender differences in gambling intensity in a Norwegian population of electronic gaming machine players
Syvertsen, Andre; Leino, Tony Mathias; Pallesen, Ståle; Smith, Otto Robert Frans; Mentzoni, Rune Aune; Griffiths, Mark D.; Erevik, Eilin K. (Peer reviewed; Journal article, 2023)Participation in various types of gambling is associated with age and gender. Younger men tend to be drawn toward online gambling whereas women and older individuals tend to engage more in land-based gambling such as ... -
The effects of digital CBT-I on work productivity and activity levels and the mediational role of insomnia symptoms: Data from a randomized controlled trial with 6-month follow-up
Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Vethe, Daniel; Faaland, Patrick; Vestergaard, Cecilie; Lydersen, Stian; Smith, Otto Robert Frans; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2022)Abstract Study objectives Cognitive behavioral therapy for insomnia (CBT-I) is a well-established treatment for insomnia, but few studies have explored its impact on work and activity impairment. Methods Data stem from ... -
Effects of digital cognitive behavioural therapy for insomnia on insomnia severity: a large-scale randomised controlled trial
Vedaa, Øystein; Kallestad, Håvard; Scott, Janine Linda; Smith, Otto Robert Frans; Pallesen, Ståle; Morken, Gunnar; Langsrud, Knut; Gehrman, Philip; Thorndike, Frances P.; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Sivertsen, Børge (Peer reviewed; Journal article, 2020)Background Although several large-scale randomised controlled trials have shown the efficacy of digital cognitive behavioural therapy for insomnia (dCBT-I), there is a need to validate widespread dissemination of dCBT-I ... -
Internet-delivered cognitive-behavioral therapy for insomnia and comorbid symptoms
Hagatun, Susanne; Vedaa, Øystein; Harvey, Allison G.; Nordgreen, Tine; Smith, Otto Robert Frans; Pallesen, Ståle; Havik, Odd E.; Thorndike, Frances P.; Ritterband, Lee M.; Sivertsen, Børge (Journal article; Peer reviewed, 2018)Background Cognitive-behavioral therapy for insomnia (CBTi) is considered the standard treatment. The internet has proven to be a useful and successful tool of providing CBTi. However, few studies have investigated the ... -
Long-term effect of cognitive–behavioural therapy in patients with Hypochondriacal Disorder
Veddegjærde, Kari-Elise Frøystad; Sivertsen, Børge; Skogen, Jens Christoffer; Smith, Otto Robert Frans; Wilhelmsen, Ingvard (Peer reviewed; Journal article, 2020)Background Cognitive–behavioural therapy (CBT) is an effective treatment for Hypochondriacal Disorder, but the long-term effect has not been examined extensively. Aims To investigate the long-term effect of CBT on ... -
Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia
Vedaa, Øystein; Hagatun, Susanne; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Thorndike, Frances P; Ritterband, Lee M.; Sivertsen, Børge (Journal article; Peer reviewed, 2019)STUDY OBJECTIVES: The aim of this study was to test the efficacy of fully automated Internet-delivered cognitive behavioral therapy for insomnia (CBT-I) 18 months after the intervention period on sleep, daytime functioning, ... -
Marital status and gambling disorder: a longitudinal study based on national registry data
Syvertsen, Andre; Leino, Tony Mathias; Pallesen, Ståle; Smith, Otto Robert Frans; Sivertsen, Børge; Griffiths, Mark D.; Mentzoni, Rune Aune (Peer reviewed; Journal article, 2023)Background Marital status is a robust correlate of disordered gambling, but few studies have examined the direction of this association. Methods The present study used a case–control design by including all adults ... -
Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis
Lien, Mats; Bredeli, Einar Rørstad; Sivertsen, Børge; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Faaland, Patrick; Ritterband, Lee M.; Thorndike, Frances P.; Vedaa, Øystein (Journal article; Peer reviewed, 2019)A post-hoc analysis comparing morning and evening persons with insomnia on sleep and mental health characteristics was conducted in order to investigate whether an Internet-based cognitive behavioral therapy for insomnia ... -
Trends in self-reported psychological distress among college and university students from 2010 to 2018
Knapstad, Marit; Sivertsen, Børge; Knudsen, Ann Kristin; Smith, Otto Robert Frans; Aarø, Leif Edvard; Lønning, Kari Jussi; Skogen, Jens Christoffer (Journal article; Peer reviewed, 2019)Background An increase in reported psychological distress, particularly among adolescent girls, is observed across a range of countries. Whether a similar trend exists among students in higher education remains unknown. ... -
Unravelling the prospective associations between mixed anxiety-depression and insomnia during the course of cognitive behavioral therapy
Thun, Eirunn; Sivertsen, Børge; Knapstad, Marit; Smith, Otto Robert Frans (Journal article; Peer reviewed, 2019)Objective Previous studies have suggested that there is a reciprocal relationship between anxiety/depression and insomnia. However, little is known about the prospective relationships between these constructs across the ...