• Epidemiology of eating disorders part III: Social epidemiology and case definitions revisited. 

      Rosenvinge, Jan H; Pettersen, Gunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-09)
      The previous papers in this series outlined a historical panorama and presented updated knowledge about putative risk factors and how eating disorders are distributed in various populations. In this final paper, we discuss in what way comorbidity findings and transdiagnostic issues may change our conceptions about ‘an epidemiological case’ from the current definition of eating disorders based on the ...
    • Preventing Alcohol Use with a Universal School-Based Intervention: Results from an Effectiveness Study 

      Strøm, Henriette Kyrrestad; Adolfsen, Frode; Handegård, Bjørn Helge; Natvig, Henrik; Eisemann, Martin; Martinussen, Monica; Koposov, Roman A (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-09)
      Background: The effectiveness of the universal school-based alcohol prevention program “Unge & Rus” [Youth & Alcohol] was tested by an independent research group. The program aims to prevent alcohol use and to change adolescents’ alcohol-related attitudes. The main outcome measure was frequency of monthly alcohol use, favorable alcohol attitudes, perceived behavioral control (PBC), positive alcohol ...
    • The Impact of a Preoperative Cognitive Behavioural Therapy (CBT) on Dysfunctional Eating Beahaviours, Affective Symptoms and Body Weight 1 Year after Bariatric Surgery: A Randomised Controlled Trial. 

      Gade, Hege; Friborg, Oddgeir; Rosenvinge, Jan H; Småstuen, Milada C; Hjelmesæth, Jøran (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-19)
      Background To examine whether a preoperative cognitive behavioural therapy (CBT) intervention exceeds usual care in the improvements of dysfunctional eating behaviours, mood, affective symptoms and body weight 1 year after bariatric surgery. <p>Methods This is a 1-year follow-up of a single centre parallelgroup randomised controlled trial (http://clinicaltrials.gov/ct2/ show/NCT01403558). A ...
    • The cross-cultural validity of the Resilience Scale for Adults: A comparison between Norway and Brazil 

      Hjemdal, Odin; Roazzi, A.; Dias, M G; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-18)
      Background: The resilience construct is of increasing interest in clinical and health psychology. The Resilience Scale for Adults (RSA) is a measure of protective factors. The evidence supporting its construct validity is good, however evidence of cross-cultural validity is modest. The present study explored the factorial invariance of the RSA across a Brazilian and a Norwegian sample, as well as ...
    • Suicidal tendencies as correlates of disability measures 

      Båtstad, Helge; Rudmin, Floyd Webster (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07-27)
      Abstract Disabilities and resultant handicaps may impair health-related quality of life to the degree that individuals feel that life is not worth living. Using archived 2009 Canadian Community Health Survey data, this study found that each of seven measures of disabilities (Health Utilities Index sub-scales of problems in (1) vision, (2) hearing, (3) speech, (4) mobility, (5) dexterity, (6) ...
    • Dealing with negative stereotypes in sports: The role of cognitive anxiety when multiple identities are activated in sensorimotor tasks 

      Martiny, Sarah E.; Gleibs, Ilka H.; Parks-Stamm, Elizabeth J.; Martiny-Huenger, Torsten; Froehlich, Laura; Harter, Anna-Lena; Roth, Jenny (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08)
      Based on research on stereotype threat and multiple identities, this work explores the beneficial effects of activating a positive social identity when a negative identity is salient on women’s performance in sports. Further, in line with research on the effects of anxiety in sports, we investigate whether the activation of a positive social identity buffers performance from cognitive anxiety ...
    • No effect of 2mA anodal tDCS over the M1 on performance and practice effect on Grooved Pegboard Test and Trail Making Test B 

      Fagerlund, Asbjørn Johansen; Freili, Janita; Danielsen, Therese; Aslaksen, Per M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-19)
      Previous studies suggest that transcranial direct current stimulation (tDCS) can facilitate motor performance and learning. In this double-blind experiment, 60 healthy human subjects (29 females) were randomized into three groups (active tDCS, sham tDCS, and no-treatment control group) in order to investigate the effect of a 20 min session of 2 mA tDCS over the motor cortex contralateral to the ...
    • Responses to success: Seeking pleasant experiences before a task is complete? 

      Schall, Marina; Goetz, Thomas; Martiny, Sarah E.; Maymon, Rebecca (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-21)
      Although engaging in pleasant experiences following successful performance may be hedonically rewarding, in the present research we proposed that individuals might forego pleasant experiences when they have not yet completed a task. In Study 1 (N = 100), participants reported the extent to which they would like to engage in pleasant experiences in a hypothetical situation where their performance ...
    • Violence affects physical and mental health differently: the general population based Tromsø study 

      Friborg, Oddgeir; Emaus, Nina; Rosenvinge, Jan H; Bilden, Unni; Olsen, Jan Abel; Pettersen, Gunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-28)
      This general population-based study examined associations between violence and mental health, musculoskeletal pain, and early disability pension. The prevalence and consequences of good vs. poor adjustment (resilience vs vulnerability) following encounters with violence were also examined. Data were based on the sixth wave of the “Tromsø Study” (N=12,981; 65.7% response rate, 53.4% women, M-age=57.5 ...
    • Role of Oestrogen α Receptors in Sociosexual Behaviour in Female Rats Housed in a Seminatural Environment 

      Snoeren, Eelke; Antonio-Cabrera, E; Spiteri, Thierry Jean P; Musatov, S; Ogawa, S; Pfaff, DW; Ågmo, Anders j (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-28)
      The present study investigated the role of oestrogen receptor (ER)α in the ventromedial nucleus of the hypothalamus (VMN), the preoptic area (POA), the medial amygdala (MePD) and the bed nucleus of stria terminalis (BNST) in sociosexual behaviour in female rats. This was conducted in two sets of experiments, with the VMN and POA investigated in the first set, and the MePD and BNST in the second set. ...
    • Fear of pain potentiates nocebo hyperalgesia 

      Aslaksen, Per M.; Lyby, Peter Solvoll (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-12)
      Nocebo hyperalgesia has received sparse experimental attention compared to placebo analgesia. The aim of the present study was to investigate if personality traits and fear of pain could predict experimental nocebo hyperalgesia. One hundred and eleven healthy volunteers (76 females) participated in an experimental study in which personality traits and fear of pain were measured prior to induction ...
    • Silent or Vocalizing Rats Copulate in a Similar Manner 

      Ågmo, Anders j; Snoeren, Eelke (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-03)
      Both male and female rats produce 50 kHz ultrasonic vocalizations (USVs) in the presence of a sexual partner and during copulation. Previous studies showed that USVs have no incentive value for rats. In this study, we evaluated the role of USVs in behavior during copulation. Three groups of rats were used: sham males paired with sham females, devocalized females paired with sham males, and sham ...
    • Toward a model-based cognitive neuroscience of mind wandering 

      Hawkins, Guy; Mittner, Matthias; Boekel, W; Heathcote, A; Forstmann, Birte U (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-03)
      People often ‘‘mind wander” during everyday tasks, temporarily losing track of time, place, or current task goals. In laboratory-based tasks, mind wandering is often associated with performance decrements in behavioral variables and changes in neural recordings. Such empirical associations provide descriptive accounts of mind wandering – howit affects ongoing task performance – but fail to ...
    • Exploring Personality and Readiness to Change in Patients With Substance Use Disorders With and Without ADHD 

      Flores, Lizbett; Ytterstad, Elinor; Lensing, Michael B.; Eisemann, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      <p><i>Objective</i>: To explore personality and readiness to change among substance use disorders (SUD) patients with and without ADHD.</p> <p><i>Method</i>: SUD + ADHD versus SUD − ADHD patients consecutively entering treatment between 2010 and 2012 were compared concerning personality (Temperament and Character Inventory) and readiness to change (Stages of Change Readiness and Treatment Eagerness ...
    • Predictors of rate of change for children and youth with emotional disorders: a naturalistic observational study 

      Nilsen, Toril Sørheim; Handegård, Bjørn Helge; Eisemann, Martin; Kvernmo, Siv (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Background: To examine demographic and clinical characteristics as potential predictors of change for children and youth with emotional disorders treated at two child and adolescent mental health outpatient services (CAMHS) in Norway. <p>Methods: The study was of naturalistic observational type with “treatment as usual” (TAU). The sample consisted of 84 children and youth with emotional disorders. ...
    • A two-stage cognitive theory of the positive symptoms of psychosis. Highlighting the role of lowered decision thresholds 

      Moritz, Steffen; Pfuhl, Gerit; Luedtke, Thies; Menon, Mahesh; Balzan, Ryan P; Andreou, Christina (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      <b>Objectives:</b> We outline a two-stage heuristic account for the pathogenesis of the positive symptoms of psychosis. <b>Methods:</b> A narrative review on the empirical evidence of the liberal acceptance (LA) account of positive symptoms is presented. <b>Hypothesis:</b> At the heart of our theory is the idea that psychosis is characterized by a lowered decision threshold, which results in ...
    • Glemt det? Husk det! 

      Gorecka, Marta Maria (Journal article; Tidsskriftartikkel, 2016)
      Populærvitenskapelig artikkel om hukommelse.
    • A comparison of behavioral and psychological characteristics of patients opting for surgical and conservative treatment for morbid obesity 

      Kvalem, Ingela Lundin; Bergh, Irmelin; von Soest, Tilmann; Rosenvinge, Jan H; Johnsen, Tina Avantis; Martinsen, Egil Wilhelm; Mala, Tom; Kristinsson, Jon Adalsteinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-02-05)
      Background Little is known about the psychological prerequisites for weight loss maintenance after bariatric surgery. A first step in investigating whether existing knowledge of conservative weight loss treatment is applicable for lifestyle interventions postoperatively is to compare specific psychological characteristics at baseline. The aim of this study was to compare patients scheduled for ...
    • The Consumer Science of Sharing: A Discussant's Observations 

      Rudmin, Floyd Webster (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-09)
      This discussant’s response to the collected articles on the consumer behavior of sharing draws on a 1983–99 record of research on the psychology of ownership and property. The major recommendations here are: (1) that sharing be defined as the simultaneous or sequential use of an object (e.g., car), a space (e.g., living room), or an intangible (e.g., identity) by more than one individual; (2) that ...
    • Transcranial direct current stimulation as a memory enhancer in patients with Alzheimer’s disease: a randomized, placebo-controlled trial 

      Bystad, Martin Kragnes; Grønli, Ole Kristian; Rasmussen, Ingrid Daae; Gundersen, Nina; Nordvang, Lene; Wang-Iversen, Henrik A.S.; Aslaksen, Per M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-23)
      <p><i>Background:</i> The purpose of this study was to assess the efficacy of transcranial direct current stimulation (tDCS) on verbal memory function in patients with Alzheimer’s disease. <p><i>Methods:</i> We conducted a randomized, placebo-controlled clinical trial in which tDCS was applied in six 30-minute sessions for 10 days. tDCS was delivered to the left temporal cortex with 2-mA intensity. ...