• Developing a model for measuring fear of pain in Norwegian samples: The Fear of Pain Questionnaire Norway 

      Vambheim, Sara Magelssen; Lyby, Peter Solvoll; Aslaksen, Per M; Flaten, Magne; Åsli, Ole; Bjørkedal, Espen; Martinussen, Laila Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-01)
      <p><i>Background - </i>Fear of pain is highly correlated with pain report and physiological measures of arousal when pain is inflicted. The Fear of Pain Questionnaire III (FPQ-III) and The Fear of Pain Questionnaire Short Form (FPQ-SF) are self-report inventories developed for assessment of fear of pain (FOP). A previous study assessed the fit of the FPQ-III and the FPQ-SF in a Norwegian non-clinical ...
    • 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 Fear of Pain Questionnaire-III and the Fear of Pain Questionnaire-Short Form: a confirmatory factor analysis 

      Vambheim, Sara Magelssen; Lyby, Peter Solvoll; Aslaksen, Per M.; Flaten, Magne; Åsli, Ole; Martinussen, Laila Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-08)
      <i>Background</i>: The Fear of Pain Questionnaire-III (FPQ-III) is a widely used instrument to assess the fear of pain (FOP) in clinical and nonclinical samples. The FPQ-III has 30 items and is divided into three subscales: Severe Pain, Minor Pain and Medical Pain. Due to findings of poor fit of the original three-factor FPQ-III model, the Fear of Pain Questionnaire-Short Form ...
    • A systematic review of sex differences in the placebo and the nocebo effect 

      Vambheim, Sara Magelssen; Flaten, Magne (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-31)
      Objectives: The present review investigated whether there are systematic sex differences in the placebo and the nocebo effect. <br>Methods: A literature search was conducted in multiple electronic databases. Studies were included if the study compared a group or condition where a placebo was administered to a natural history group or similar cohort. <br>Results: Eighteen studies were identified ...