ArticleBMJ open2025
Randomised controlled trial of VR-based observation meditation with AI coaching ('Otti') for stress reduction in university students in the United States: study protocol.
Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06704282 (Effects of VR-Based Mindfulness Observational Meditation for Stress Reduction in Adults), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Effects of VR-Based Mindfulness Observational Meditation for Stress Reduction in Adults : Randomized Controlled Trial
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3 authors.
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Abstract
introductionStress is a major health issue in contemporary society, and mindfulness-based approaches reduce stress and anxiety but face practical barriers to consistent practice; this protocol evaluates a Virtual Reality (VR)-based observation meditation programme with an artificial intelligence (AI) coach ('Otti') that delivers real-time empathic, tailored prompts to support present-focused attention and emotion regulation in university students in the United States. A single-centre randomised controlled trial in Pennsylvania will assess immediate psychophysiological effects and user acceptability after a single 15 min session following a standardised Stroop stressor in a university laboratory setting. METHODS AND ANALYSIS: An a priori power analysis (f=0.25, α=0.05, power=0.80) supports recruitment of 34 students (n=17 per group) in a single-centre randomised controlled design comparing AI-coached VR observation meditation to a no-treatment leisure control within a 30 min visit. Participants complete pre-intervention surveys Perceived Stress Scale-10 (PSS-10), Depression Anxiety Stress Scales (DASS-21), State-Trait Anxiety Inventory (STAI-State, STAI-Trait) and baseline heart rate/Heart Rate Variability (HRV) via smartwatch, undergo the 15 min intervention or control, then complete postintervention surveys and repeated heart rate/HRV recording; effects will be tested using repeated-measures analysis of variance, with heart-rate data exported and preprocessed per the prespecified plan. Primary outcomes include perceived stress (PSS-10), emotional state (DASS-21, STAI-State, STAI-Trait), physiological stress response (heart rate/HRV) and participant satisfaction via a structured postintervention survey (usability, perceived effectiveness, comfort). ETHICS AND DISSEMINATION: The study received IRB approval from The Pennsylvania State University Institutional Review Board (PSU CATS IRB: STUDY00025978; ClinicalTrials.gov: NCT06704282), and all participants will provide written informed consent prior to procedures. Findings will be disseminated via open access publication, conference presentations and stakeholder-focused briefs, with an anonymised primary-outcome dataset available on reasonable request in line with TRIAL REGISTRATION NUMBER: NCT06704282.
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