Now showing items 521-540 of 830

    • Failure to Find a Conditioned Placebo Analgesic Response 

      Flaten, Magne; Bjørkedal, Espen; Lyby, Peter Solvoll; Figenschau, Yngve Anton; Aslaksen, Per M (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-30)
      <p><i>Background</i>: Associative learning has, in several studies, been modulated by the sex of the participant. Consistent with this, a recent review found that conditioned nocebo effects are stronger in females than in males.</p> <p><i>Purpose</i>: It has been suggested that conditioned placebo responses are stronger in females, and this hypothesis was investigated in the present study. Cortisol ...
    • The relation of hippocampal subfield volumes to verbal episodic memory measured by the California Verbal Learning Test II in healthy adults 

      Aslaksen, Per M; Bystad, Martin Kragnes; Ørbo, Marte; Vangberg, Torgil Riise (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-08)
      Total hippocampal volume has previously been shown to correlate with performance on tests for verbal episodic memory. However, there are sparse evidence on how hippocampal subfield volumes are related to verbal episodic memory in healthy adults. The present study investigated the association between volumes of separate hippocampal subfields and verbal episodic memory performance in healthy volunteers. ...
    • The Opioid Receptor Mu 1 (OPRM1) rs1799971 and Catechol-O-methyltransferase (COMT) rs4680 as genetic markers for placebo analgesia 

      Aslaksen, Per M; Forsberg, June Thorvaldsen; Gjerstad, Johannes (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-16)
      The placebo effect is considered the core example of mind-body interactions. However, individual differences produce large placebo response variability in both healthy volunteers and patients. The placebo response in pain, placebo analgesia, may be dependent on both the opioid system and the dopaminergic system. Previous studies suggest that genetic variability affects the function of these 2 systems. ...
    • Epistemological and methodological paradoxes: secondary care specialists and their challenges working with adolescents with medically unexplained symptoms 

      Østbye, Silje Vagli; Wang, Catharina Elisabeth Arfwedson; Granheim, Ida Pauline Høilo; Kristensen, Kjersti Elisabeth; Risør, Mette Bech (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-24)
      <p><i>Background</i>: Early adolescence is considered a critical period for the development of chronic and recurrent medically unexplained symptoms (MUS), and referrals and system-initiated patient trajectories often lead to an excess of examinations and hospitalizations in the cross-section between mental and somatic specialist care for this group of patients. Dimensions of the relationship and ...
    • Body composition and physical fitness in women with bulimia nervosa or binge-eating disorder. 

      Mathisen, Therese Fostervold; Rosenvinge, Jan H; Friborg, Oddgeir; Pettersen, Gunn; Stensrud, Trine; Hansen, Bjørge Hermann; Underhaug, Karoline; Teinung, Elisabeth; Vrabel, KariAnne; Svendsen, Mette; Bratland-Sanda, Solfrid; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-23)
      <p><i>Objective</i>: Knowledge about physical fitness in women with bulimia nervosa (BN) or binge‐eating disorder (BED) is sparse. Previous studies have measured physical activity largely through self‐report, and physical fitness variables are mainly restricted to body mass index (BMI) and bone mineral density. We expanded the current knowledge in these groups by including a wider range of physical ...
    • Sex-Differences in Children Referred for Assessment: An Exploratory Analysis of the Autism Mental Status Exam (AMSE) 

      Øien, Roald A; Vambheim, Sara Magelssen; Hart, Logan; Nordahl-Hansen, Anders; Erickson, Craig; Wink, Logan; Eisemann, Martin; Shic, Frederick; Volkmar, Fred R.; Grodberg, David (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-08)
      The autism mental status exam is an eight-item observational assessment that structures the way we observe and document signs and symptoms of ASD. Investigations of test performance indicate strong sensitivity and specificity using gold-standard assessment as reference standard. This study aims to explore potential sex differences in AMSE test performance and observations of 123 children referred ...
    • Evaluation of a brief unguided psychological online intervention for depression: A controlled trial including exploratory moderator analyses 

      Lüdtke, Thies; Pult, Lilian K.; Schneider, Brooke C.; Pfuhl, Gerit; Moritz, Steffen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-28)
      <p><i>Background</i>: Psychological online interventions (POIs) reduce depression but we know little about factors influencing their effectiveness. We evaluated a new, brief POI for depression and conducted exploratory moderator analyses.</p> <p><i>Methods</i>: In this online trial (German Clinical Trials Register; DRKS00011045), we allocated participants to treatment as usual (TAU; n = 67) or ...
    • On the behavioral side of procrastination: Exploring behavioral delay in real-life settings 

      Svartdal, Frode; Sjur, Granmo; Færevaag, Fredrik Svartdal (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-16)
      This paper examines how procrastinators behave differently from non-procrastinators in implementing intended behavior. By focusing on time-related attributes of behavior, we demonstrate in five studies (aggregated N = 965) that onset delay seems to be a preferred option for procrastinators in common daily situations. Thus, when an action possibility is available for intended behavior, procrastinators ...
    • Long-term dropout from school and work and mental health in young adults in Norway: A qualitative interview-based study 

      Ramsdal, Gro Hilde; Bergvik, Svein; Wynn, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-22)
      School dropout is related to difficult life trajectories in Western society. Developing effective preventive interventions is urgent. Nevertheless, few studies have interviewed unemployed young adults in the aftermath of school dropout to understand their experiences with influential factors. We interviewed seven former students two to five years after they had dropped out and seven same-aged students ...
    • Social Perception Training: Improving social competence by reducing cognitive distortions 

      Finne, Johannes Nilsson; Svartdal, Frode (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11)
      Social Perception Training (SPT) is a program focused on changing the perceptual and cognitive processes involved in suboptimal social interactions. It is administered with whole class of pupils over ten weeks. No previous studies have evaluated its efficacy. The present study investigated the outcome benefit of the program in 18 primary and secondary classes in a Norwegian municipality (aggregated ...
    • Textual health warning labels on snus (Swedish moist snuff): do they affect risk perception? 

      Nilsen, Connie Villemo; Friborg, Oddgeir; Teigen, Karl Halvor; Svartdal, Frode (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-27)
      <p><i>Background</i>: To strengthen the risk message on snus warning labels, the European Union in 2016 removed “can” from the warning “This tobacco product (can) damages your health and is addictive.” We tested how these and other textual warnings affect risk perception.</p> <p><i>Methods</i>: Snus-using and non-using Norwegians aged 16–72 participated in two online survey experiments. ...
    • Effects of transcranial direct current stimulation for treating depression: A modeling study 

      Csifcsak, Gabor; Boayue, Nya Mehnwolo; Puonti, Oula; Thielscher, Axel; Mittner, Matthias (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-28)
      <p><i>Background</i>: Transcranial direct current stimulation (tDCS) above the left dorsolateral prefrontal cortex (lDLPFC) has been widely used to improve symptoms of major depressive disorder (MDD). However, the effects of different stimulation protocols in the entire frontal lobe have not been investigated in a large sample including patient data.</p> <p><i>Methods</i>: We used 38 head ...
    • Data from ‘Placebo Enhances Reward Learning in Healthy Individuals’ 

      Turi, Zsolt; Antal, Andrea; Paulus, Walter; Mittner, Matthias (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-20)
      This dataset contains three repeated measures of a standard reward-based reinforcement-learning task from 29 healthy male individuals who participated in three experimental sessions exploring cognitive placebo effects on reward learning. The dataset includes behavioural data (accuracy, reaction times) during learning and transfer, estimates of model-free computational analysis, self-reported arousal ...
    • The double-edged effect of intergroup similarity: Muslim and Christian immigrants’ acculturation preferences on intergroup relations in Sweden 

      Olsson, Maria; Camilla, Matera; Tip, Linda K.; Brown, Rupert (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-21)
      A 2 x 2 x 2 experiment examined effects of the acculturation orientations seen to be endorsed by immigrants (of two different religions) on intergroup relations in Sweden. Swedish majority participants (N = 448) read interviews with Iraqi immigrants in which the immigrants’ religion (Muslim vs. Christian), desired level of contact with the host society (high vs. low), and desire to maintain their ...
    • Assessment of sexual behavior in rats: the potentials and pitfalls 

      Heijkoop, Roy; Huijgens, Patty Thalia; Snoeren, Eelke (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-27)
      In the field of behavioral neuroscience, it is essential to use the appropriate animal models for the topic of investigation. Using the wrong model can result in false interpretation of the results. In this review we will discuss the animal models used to study sexual behavior, with a focus on rats. We will discuss the potentials and pitfalls of the different paradigms and try to make recommendations ...
    • Barns deltakelse i mekling. Påvirker det samarbeidet mellom foreldrene? 

      Kaarbø, Tora; Andersen, Stine Moe (Master thesis; Mastergradsoppgave, 2015-05-03)
      Formålet med oppgaven var å undersøke om barns deltagelse i mekling påvirker samarbeidet mellom foreldrene, sett ut ifra foreldrenes opplevelse. Vi ønsket også å undersøke om samarbeidet mellom foreldrene påvirkes ulikt ut ifra om det mekles etter ekteskapsloven, barneloven (samboende i brudd eller tvist om foreldreansvar). Videre ble foreldre og meklers vurdering av konfliktnivået sammenlignet. ...
    • Six-year positive effects of a mindfulness-based intervention on mindfulness, coping and well-being in medical and psychology students; Results from a randomized controlled trial 

      De Vibe, Michael F.; Solhaug, Ida; Rosenvinge, Jan H; Tyssen, Reidar; Hanley, Adam; Garland, Eric (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-24)
      Longitudinal research investigating the enduring impact of mindfulness training is scarce. This study investigates the six-year effects of a seven-week mindfulness-based course, by studying intervention effects in the trajectory of dispositional mindfulness and coping skills, and the association between those change trajectories and subjective well-being at six-year follow-up. 288 Norwegian medical ...
    • Non-linear heart rate variability as a discriminator of internalizing psychopathology and negative affect in children with internalizing problems and healthy controls 

      Fiskum, Charlotte; Andersen, Tonje Grønning; Bornas, Xavier; Aslaksen, Per M.; Flaten, Magne A.; Jacobsen, Karl (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-23)
      Background: Internalizing psychopathology and dysregulated negative affect are characterized by dysregulation in the autonomic nervous system and reduced heart rate variability (HRV) due to increases in sympathetic activity alongside reduced vagal tone. The neurovisceral system is however, a complex nonlinear system, and nonlinear indices related to psychopathology are so far less studied in children. ...
    • Optimizing the RMET to measure bias not performance differences 

      Pfuhl, Gerit; Leif, Ekblad (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-22)
      <p>Background: Human social interaction and communication is complex. Sending a verbal message is often accompanied by intonations, facial expressions, grimaces, and body postures. Nonverbal signals are potentially open for misinterpretation. One popular test for assessing the interpretation of facial expressions is the “Reading the Mind in the Eyes” Test (RMET). This test has been used to relate ...
    • Patterns of change and stability in caregiver burden and life satisfaction from 1 to 2 years after severe traumatic brain injury: A Norwegian Longitudinal study. 

      Manskow, Unn Sollid; Friborg, Oddgeir; Røe, Cecilie; Braine, Mary; Damsgård, Elin; Anke, Audny (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03-27)
      <p><i>OBJECTIVE</i>: To assess burden and life satisfaction in family members of patients with severe traumatic brain injury (sTBI) at 1 and 2 years post-injury, examine if change in burden can be predicted by family member and patient demographics, patient’s functional status, family members social network or level of burden at 1 year.</p> <p><i>METHODS</i>: Prospective national multicenter ...