• Aberrant salience predicts fluctuations of paranoia two weeks in advance during a 1-year experience sampling method study in people with psychosis 

      Luedtke, Thies; Moritz, Steffen; Westermann, Stefan; Pfuhl, Gerit (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-03)
      The Experience Sampling Method (ESM) has improved our understanding of psychosis considerably (Myin-Germeys et al., 2018). Not only has ESM shed light on the moment-to-moment variability of psychotic symptoms, it has equally helped to identify micro-level precursor variables that forecast symptom exacerbations a couple of hours in advance. Among others, established ESM-derived precursors are negative ...
    • An internet-based intervention for people with psychosis (EviBaS): Study protocol for a randomized controlled trial 

      Ruegg, Nina; Moritz, Steffen; Berger, Thomas; Lüdtke, Thies; Westermann, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-13)
      <p><i>Background</i>: Evidence shows that internet-based self-help interventions are effective in reducing symptoms for a wide range of mental disorders. To date, online interventions treating psychotic disorders have been scarce, even though psychosis is among the most burdensome disorders worldwide. Furthermore, the implementation of cognitive-behavioral therapy (CBT) for psychosis in routine ...
    • Mindfulness Mediates the Effect of a Psychological Online Intervention for Psychosis on Self-Reported Hallucinations: A Secondary Analysis of Voice Hearers From the EviBaS Trial 

      Lüdtke, Thies; Platow-Kohlschein, Heike; Rüegg, Nina; Berger, Thomas; Moritz, Steffen; Westermann, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-03)
      <i>Background</i>: Psychological online interventions (POIs) could represent a promising approach to narrow the treatment gap in psychosis but it remains unclear whether improving mindfulness functions as a mechanism of change in POIs. For the present study, we examined if mindfulness mediates the effect of a comprehensive POI on distressing (auditory) hallucinations.<p> <p><i>Methods</i>: We ...
    • Prolonged rather than hasty decision-making in schizophrenia using the box task. Must we rethink the jumping to conclusions account of paranoia? 

      Moritz, Steffen; Scheunemann, Jakob; Lüdtke, Thies; Westermann, Stefan; Pfuhl, Gerit; Balzan, Ryan P; Andreou, Christina (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-05)
      Jumping to conclusions (JTC) is the best established cognitive bias in schizophrenia and is increasingly targeted in interventions aimed to improve positive symptoms. To address shortcomings of the standard measure to capture JTC, the beads task, we developed a new variant—the box task—which was subsequently validated in people with elevated psychotic-like experiences. For the first time, the box ...
    • Sleep problems and worrying precede psychotic symptoms during an online intervention for psychosis 

      Lüdtke, Thies; Pfuhl, Gerit; Moritz, Steffen; Ruegg, Nina; Berger, Thomas; Westermann, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-10)
      <p><i>Objective - </i>Experience sampling assessments (multiple assessments per day for approximately one week) indicate that positive symptoms fluctuate over time in psychosis. Precursors, such as sleep problems or worrying, predict these fluctuations. To date, it remains unclear whether the same precursors predict symptom variability also during treatment in an online intervention for psychosis, ...