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Anhedonia 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 PDFMethamphetamine-Associated Psychosis and Criminal Responsibility.
J Am Acad Psychiatry Law
January 2025
Dr. Engelson is a fellow in forensic psychiatry, Dr. Sloan is an Assistant Professor, and Dr. Gulrajani is an Associate Professor, Department of Psychiatry and Behavioral Sciences, University of Minnesota - Twin Cities, Minneapolis, MN. Dr. Teravskis is a resident physician, Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL.
Stimulants are among the most widely used substances in the world after cannabis, with a rapid rise in methamphetamine use in the last 15 years. Methamphetamine has a high propensity to cause psychosis ranging from transient psychosis during acute intoxication to persisting psychosis with similarities to schizophrenia. Although the former condition may not abrogate criminal responsibility, the latter is recognized as a basis for an exculpatory mental state in a majority of jurisdictions across the United States.
View Article and Find Full Text PDFImpact of probiotic treatment on clinical symptom reduction in schizophrenia: A systematic review and meta-analysis.
J Psychiatr Res
January 2025
Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain; CIBERSAM-ISCIII (Biomedical Research Networking Centre for Mental Health/Carlos III Health Institute), Spain; Department of Legal Medicine, Psychiatry, and Pathology. Complutense University of Madrid, Madrid, Spain. Electronic address:
Introduction: Recent research has identified gut microbiota dysbiosis as a potential contributing factor in schizophrenia, leading to growing interest in exploring probiotics as a complementary approach to traditional antipsychotic treatments. This study aims to systematically evaluate the current evidence on the efficacy of probiotics in improving clinical symptoms of schizophrenia, offering a novel perspective into their potential role as an adjunctive strategy.
Methods: A systematic search was conducted to review randomized clinical trials, adhering to the PRISMA guidelines.
Deviant sound frequency and time stimuli in auditory oddball tasks reveal persistent aberrant brain activity in patients with psychosis and symptomatic remission.
J Psychiatr Res
January 2025
Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain.
The detection of rare or deviant stimuli shares common brain circuits involved in temporal processing and salience, critical for cognitive control. Disruption in these processes may contribute to the mechanisms of the disease and explain cognitive deficits observed in psychosis and related disorders. We designed a neuroimaging study, using oddball task-based functional sequences (fMRI) and diffusion tensor imaging (DTI), comparing healthy controls (HC, n = 14, 7 females) and patients with stable psychosis (PSY, n = 20, 10 females).
View Article and Find Full Text PDFManagement of Psychosis and Schizophrenia by Primary Care GPs: A Cross-Sectional Study in Spain.
J Prim Care Community Health
January 2025
Instituto de Investigación Biomédica de Málaga, Málaga, Spain.
Aim: To investigate the detection and initial management of first psychotic episodes, as well as established schizophrenia, within the primary care of the Andalusian Health System.
Background: Delay in detecting and treating psychosis is associated with slower recovery, higher relapse risk, and poorer long-term outcomes. Often, psychotic episodes go unnoticed for years before a diagnosis is established.
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