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 ...

<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 ...

Positivsymptome wie Wahn und Halluzinationen stellen definierende Symptome einer (schizophrenen) Psychose dar. In dieser Übersichtsarbeit wird ein 2-stufiges heuristisches Modell für die Entstehung und Aufrechterhaltung psychotischer Positivsymptome vorgelegt. Im Kern der Theorie steht die Hypothese, dass von Psychose betroffene Menschen eine erniedrigte Entscheidungsschwelle aufweisen, die zu ...

<i>Background and Objectives</i>: Performance on cognitive tasks is often impaired in individuals with schizophrenia (SCZ), possibly resulting from either cognitive deficits (e.g., limited working memory capacity) or diminished mental effort or both. Investment of mental effort itself can be affected by cognitive resources, task load, and motivational factors and has thus proven difficult to measure. ...

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 ...

Introduction - Diametrically aberrant mentalising biases, namely hypermentalising in psychosis and hypomentalising in autism, are postulated by some theoretical models. To test this hypothesis, we measured psychotic-like experiences, autistic traits and mentalising biases in a visual chasing paradigm.<p> <p>Methods - Participants from the general population (N = 300) and psychotic patients (N=26) ...

Aberrant attribution of salience to in fact little informative events might explain the emergence of positive symptoms in schizophrenia and has been linked to belief uncertainty. Uncertainty is thought to be encoded by neuromodulators, including norepinephrine. However, norepinephrinergic encoding of uncertainty, measured as task-related pupil dilation, has rarely been explored in schizophrenia. ...