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Purpose: The study aims to explore the relationship between orbitofrontal cortex (OFC) and thalamus volumes and metacognition in patients with obsessive-compulsive disorder (OCD). By analyzing structural MRI data and metacognitive measures, it investigates how brain volume variations correlate with dysfunctional beliefs and OCD symptoms.
Method: The study consisted of 20 patients with OCD and 20 healthy controls. Yale-Brown Obsession Compulsion Scale (Y-BOCS), Metacognition Questionnaire-30 (MCQ-30), Hamilton Depression Scale (HAM-D), and Hamilton Anxiety Scale (HAM-A) were administered to OCD patients and healthy controls. They then underwent structural MRI scans to measure the volume of the OFC and thalamus.
Finding: On both sides, OCD patients had smaller volumes of OFC than healthy control individuals, and their thalamic volumes were similar to those of the control participants. Furthermore, MCQ-30 scores showed a substantial negative correlation with left OFC volume.
Conclusion: In conclusion, we suggest that dysfunctional metacognitive beliefs might be related to the occurrence of OCD, and these beliefs might be associated with the left side of OFC neuroanatomically.
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http://dx.doi.org/10.1002/brb3.70716 | DOI Listing |
Alzheimers Dement
September 2025
Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Introduction: Antisocial behaviors occur in dementia, but the underlying neurocognitive mechanisms remain underexplored. We administered a decision-making task measuring patients' harm aversion by offering options to shock themselves or another person in exchange for money, hypothesizing that task performance would relate to antisocial behaviors and ventromedial/orbitofrontal cortex (vmPFC/OFC) atrophy.
Methods: Among 43 dementia patients (n = 23 behavioral variant frontotemporal dementia [bvFTD], n = 20 Alzheimer's disease [AD]), we used linear regressions to measure relationships between harm aversion and antisocial behavior, psychopathic personality traits, socioemotional functions, and vmPFC/OFC cortical thickness, controlling for age, sex, and cognitive dysfunction.
Brain Res
August 2025
Laboratorio de Aprendizaje, Memoria y Neuromodulación, Departamento de Neurociencias, Facultad de Medicina, Universidad de Chile, Chile; Biomedical Neuroscience Institute (BNI), Facultad de Medicina, Universidad de Chile, Chile. Electronic address:
Temporal lobe epilepsy (TLE) is a highly prevalent neurological disorder characterized by severe seizures and altered consciousness. Seizures in TLE often originate in the hippocampus (HIP) but can spread to widespread brain regions, including the retrosplenial cortex (RSC) and orbitofrontal cortex (ORB). The RSC is a highly interconnected cortical region implicated in seizure onset and propagation, yet its role in epilepsy remains poorly understood.
View Article and Find Full Text PDFWorld J Mens Health
August 2025
Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Purpose: This study aims to investigate the bidirectional causal relationship between erectile dysfunction (ED) and cerebral cortical structure.
Materials And Methods: This study employed bidirectional two-sample Mendelian randomization (MR) framework. Exposure and outcome data were derived from genome-wide association study (GWAS) datasets.
Front Aging Neurosci
August 2025
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Purpose: To investigate the correlation between cortical thickness (CT), sulcal depth (SD), local gyrification index (LGI), and cognitive scores in patients with Alzheimer's disease (AD).
Methods: A total of 200 patients with AD from 2014 to 2021 were included, confirmed by 18F-florbetaben-positron emission tomography, and having a Clinical Dementia Rating score of 0.5 or 1.