Obsessive-Compulsive Disorder: Insight, Trauma, and Links to Schizophrenia Spectrum Disorders

Assessment of obsessive-compulsive symptom severity using the Yellow-Brown Obsessive-Compulsive Scale (Y-BOCS). The total score ranges from 0 to 40, with higher scores indicating more severe symptoms. This scale is a clinician-administered questionnaire evaluating obsessions and compulsions

Measurement of childhood trauma exposure using the Childhood Trauma Questionnaire-Short Form (CTQ-SF), a self-report questionnaire with scores ranging from 25 to 125. Higher scores indicate greater levels of reported childhood trauma

Assessment of audio-tactile simultaneity perception using paired auditory and tactile stimuli presented with varying temporal delays. Participants are asked to judge whether the stimuli occur simultaneously. The task includes multiple trials with systematically varied stimulus onset asynchronies. Performance is defined as the proportion of correct simultaneity judgments, reflecting multisensory temporal integration abilities

Evaluation of training-induced improvements in multisensory temporal integration through a task where participants receive real-time feedback on their simultaneity judgments. A staircase procedure adjusts the delay between stimuli based on participant responses. Performance is measured as improvement in simultaneity judgment accuracy and reduced temporal thresholds from pre- to post-training sessions

Behavioral analysis of ritual videos conducted with ethnographic software, which breaks down rituals into elementary behavioral units classified into three categories: functional, non-functional, and displaced. The measure quantifies the frequency of each behavioral unit category to assess the complexity and structure of rituals. Frequency counts of behavioral units per category (functional, non-functional, displaced). Baseline and follow-up video recordings.