Thies Lüdtke

Thies Lüdtke
MSH Medical School Hamburg

PhD

About

29
Publications
5,520
Reads
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323
Citations
Citations since 2016
28 Research Items
322 Citations
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2016201720182019202020212022020406080

Publications

Publications (29)
Article
Full-text available
Dysfunctional expectations and interpersonal problems are associated with depression, so we measured expected emotions towards interaction partners and compared them with actual emotions. We hypothesized that, between persons, individuals with higher subclinical depression would display stronger, more stable, and less accurate negative expectations...
Preprint
Background. Dysfunctional expectations and interpersonal problems are central aspects of depression, but expectations regarding everyday-life interpersonal interactions have not been studied, yet. Using Experience Sampling, we measured expected emotions towards interaction partners and compared them with actual emotions. We hypothesized that stable...
Article
Full-text available
Introduction: Imaginal retraining is a self-help technique that adapts the principles of approach bias modification to the imagination. Imaginal retraining has been shown to reduce craving and addictive behaviours in 3 randomized controlled trials (RCTs) on problematic alcohol consumption, overweight, and tobacco use. To date, there have been no s...
Article
Emerging evidence suggests that Internet-based interventions for people with psychosis (ICBTp) are feasible and efficacious. However, predictors of adherence and treatment outcomes are largely unknown. To narrow this research gap, we conducted secondary analyses on data from a randomized controlled trial, which evaluated an eight-week ICBTp interve...
Article
Full-text available
Background: Depressive symptoms are one of the most common and ever-increasing mental health problems among students worldwide. Conventional treatment options, particularly psychotherapy, do not reach all students in need of help. Internet- and mobile-based interventions are promising alternatives for narrowing the treatment gap. Objective: In the...
Preprint
BACKGROUND Depressive symptoms are one of the most common and ever increasing mental health problems among students worldwide. Conventional treatment options, particularly psychotherapy, do not reach all students in need for help. Internet- and mobile-based interventions are promising alternatives for narrowing the treatment gap. OBJECTIVE In the...
Article
Full-text available
Objective. 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 i...
Chapter
This review brings together findings on the emotional processes and cognitive biases underlying psychosis, particularly delusions. A focus is set on two recent models of psychosis formation and maintenance. The model by Daniel Freeman and Philippa Garety has identified six causal mechanisms for persecutory delusions, four of which are emotional in...
Article
Objective: Cognitive-behavioral therapy (CBT) for psychosis is recommended in many national guidelines, but dissemination into routine health care remains poor. This study tests whether an 8-week, CBT-oriented, Internet-based intervention (IBI) for people with psychosis is feasible, effective, and safe compared to care as usual. Method: A sample...
Article
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 psycho...
Article
Full-text available
Background 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) hal...
Article
In the past few decades, sex differences have been identified in a number of clinical, cognitive and functional outcomes in patients with schizophrenia spectrum disorders. However, to date, sex differences in higher-order cognitive biases have not been systematically studied. The present study aimed to examine sex differences in jumping-to-conclusi...
Article
Full-text available
Objectives: It is textbook knowledge that individuals with alcohol use disorder (AUD) show large neurocognitive deficits. However, these patients display a number of additional impairments (e.g., lack of drive and motivation) that may contribute to poor test results. The impact of these secondary mediators has not been explored systematically. Bas...
Article
Depressive symptoms are common, yet only a subgroup of individuals receive adequate treatment. To reduce the treatment gap, several online self-help programs have been developed, yielding small to moderate effects. We developed a smartphone self-help application addressing depressive symptoms. We sought to evaluate its feasibility and efficacy in p...
Article
Full-text available
Background 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. Methods In this online trial (German Clinical Trials Register; DRKS00011045), we allocated participants to treatment as u...
Article
Full-text available
Background: 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...
Article
Reasoning biases such as jumping-to-conclusions (JTC) and incorrigibility have been suggested to contribute to the generation and maintenance of delusions. However, it is still debated whether these biases represent stable traits of patients with delusions, or are related to state fluctuations of delusion severity. The present study aimed to elucid...
Article
Full-text available
Cognitive deficits are common in depression and may persist following the resolution of affective symptoms. However, therapeutic strategies that successfully target cognitive impairments are lacking. Recent work has demonstrated that playing action video games leads to improvements in cognition, in particular executive function, in healthy individu...
Article
Objectives: We outline a two-stage heuristic account for the pathogenesis of the positive symptoms of psychosis. Methods: A narrative review on the empirical evidence of the liberal acceptance (LA) account of positive symptoms is presented. Hypothesis: At the heart of our theory is the idea that psychosis is characterized by a lowered decision thre...
Article
The unfolding of emotions over time (i.e., emotion dynamics) has been characterized by baseline, intraindividual variability and regulatory tendency (return time to baseline after deflection). Mounting evidence suggests that compared to healthy individuals, individuals with schizophrenia are characterized by a more negatively valenced baseline and...
Article
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 ernie...
Article
Background and objectives: Negative affect and a tendency to "jump to conclusions" (JTC) are associated with paranoia. So far, only negative affect has been examined as a precursor of subsequent paranoia in daily life using experience sampling (ESM). We addressed this research gap and used ESM to test whether JTC fluctuates in daily life, whether...
Article
Full-text available
Delusions are defined as fixed erroneous beliefs that are based on misinterpretation of events or perception, and cannot be corrected by argumentation to the opposite. Cognitive theories of delusions regard this symptom as resulting from specific distorted thinking styles that lead to biased integration and interpretation of perceived stimuli (i.e....

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