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Acceptability, feasibility, and effectiveness of internet-based cognitive behavior therapy for obsessive-compulsive disorder (OCD-NET): a naturalistic pilot trial during the COVID-19 pandemic in a psychiatric outpatient department in Germany.
BMC Psychiatry
January 2025
Department of Psychiatry and Psychotherapy, Medical Faculty, Leipzig University, Leipzig, Germany.
Background: Cognitive behavior therapy (CBT) is the gold-standard treatment for obsessive-compulsive disorder (OCD). However, access to CBT and specialized treatments is often limited. This pilot study describes the implementation of a guided Internet-Based CBT program (ICBT) for individuals seeking treatment for OCD in a psychiatric outpatient department in Leipzig, Germany, during the COVID-19 pandemic.
View Article and Find Full Text PDFAnhedonia relates to reduced striatal reward anticipation in depression but not in schizophrenia or bipolar disorder: A transdiagnostic study.
Cogn Affect Behav Neurosci
January 2025
Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Psychiatry and Neurosciences | CCM, Berlin, Germany.
Anhedonia, i.e., the loss of pleasure or lack of reactivity to reward, is a core symptom of major psychiatric conditions.
View Article and Find Full Text PDFThe Impact of Loneliness on Late-Life Depression and Anxiety During the COVID-19 Pandemic.
Am J Geriatr Psychiatry
January 2025
Department of Psychiatry and Psychotherapy (JM, ME, NZ, KD, ES), Medical Center- University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany. Electronic address:
Objective: This study investigates the association of loneliness during the COVID-19 pandemic and the course of depressive, anxiety and sleep symptoms after psychological treatment in older adults.
Methods: During the first wave of the pandemic in 2020, we assessed additional, original data of 132 participants aged ≥60 years who had completed psychological treatment for late-life depression (LLD) in the context of a multicenter, randomized controlled trial (CBT-late). We measured loneliness using the UCLA Loneliness Scale.
Dopaminergic Mechanisms of Cognitive Flexibility: An [F]Fallypride PET Study.
J Nucl Med
January 2025
Department of Nuclear Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.
Cognitive flexibility is the ability to appropriately adapt one's thinking and behavior to changing environmental demands and is conceptualized as an aspect of executive function. The dopamine system has been implicated in cognitive flexibility; however, a direct, that is, neurochemical, link to cognitive flexibility has not been shown yet. The aim of this study was, therefore, to investigate how cognitive flexibility is mediated by dopaminergic signaling in the ventromedial prefrontal cortex (vmPFC).
View Article and Find Full Text PDFDoes transcutaneous auricular vagus nerve stimulation alter pupil dilation? A living Bayesian meta-analysis.
Brain Stimul
January 2025
Section of Medical Psychology, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Bonn, Bonn, Germany; Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health, University of Tübingen, Tübingen, Germany; German Center for Mental Health (DZPG), partner site Tübingen. Electronic address:
Background: Transcutaneous vagus nerve stimulation (tVNS) has emerged as a promising technique to modulate autonomic functions, and pupil dilation has been recognized as a promising biomarker for tVNS-induced monoaminergic release. Nevertheless, studies on the effectiveness of various tVNS protocols have produced heterogeneous results on pupil dilation to date.
Methods: Here, we synthesize the existing evidence and compare conventional ("continuous") and pulsed stimulation protocols using a Bayesian meta-analysis.
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