{ "abstract": "Stroboscopic light stimulation (SLS) reliably evokes geometric visual hallucinations and, in some contexts, altered-state experiences. Its increasing use in research, public, recreational and exploratory clinical settings creates a need for proportionate safety guidance. The main concern is a visually triggered seizure in a susceptible individual; reported non-epileptic responses include discomfort or distress. We combined a retrospective survey of safety practices and reported events across four laboratories, provider-reported operational data from two commercial SLS platforms, and a focused review of photosensitivity and sensory intolerance. Laboratory contributors reported 20 non-serious events that interrupted or modified participation, with no reported seizures or syncopal episodes. One commercial provider reported nine medically important or otherwise notable events across approximately 3.8 million sessions. The other reported five such events across more than 400,000 sessions. Because commercial adverse-event capture was passive and the laboratory protocols and monitoring procedures were heterogeneous, these figures cannot be used to estimate incidence or establish screening effectiveness. This synthesis informed a provisional Sussex Strobe Safety Screening Questionnaire (4SQ) and a layered, context-specific risk-management approach. The resulting framework distinguishes non-serious tolerability concerns from the principal medical risk of a visually provoked seizure in a susceptible individual, and supports conservative monitored familiarisation exposure, immediate stopping procedures and systematic adverse-event surveillance. The predictive performance of the 4SQ and the effectiveness of these precautions require formal evaluation; absolute SLS risk remains uncertain.", "abstract_shown": true, "affiliations": [ "Sussex Centre for Consciousness Science and School of Engineering and Informatics, University of Sussex, Brighton, United Kingdom", "MSB Medical School Berlin, Institute of Neuroscience and Biopsychology for Clinical Application (INBICA), Berlin, Germany", "CIRCE - Collaboration for Interdisciplinary Research on Conscious Experience e.V., Teupitz, Germany", "UCL Queen Square Institute of Neurology, London, United Kingdom", "Department of Neurology, West China Hospital, Sichuan University, Chengdu, China", "Macquarie University, Sydney, Australia", "Faculty of Social and Behavioural Sciences, Leiden University, Leiden, Netherlands", "Centre for the Study of Perceptual Experience, University of Glasgow, Glasgow, United Kingdom", "Lumenate Growth Ltd., Bristol, United Kingdom", "Audyssey, Llansantffraid, Powys, United Kingdom", "Roxiva Innovations Ltd., Sheffield, United Kingdom", "Program for Brain, Mind, and Consciousness, Canadian Institute for Advanced Research, Toronto, Canada" ], "article_type": "Research Article", "arxiv": null, "author_total": 14, "authors": [ { "affs": [ 0 ], "name": "David John Schwartzman" }, { "affs": [ 1 ], "name": "Trevor Hewitt" }, { "affs": [ 2 ], "name": "Timo Torsten Schmidt" }, { "affs": [ 3 ], "name": "Josemir Wanderley Sander" }, { "affs": [ 4 ], "name": "Danny Nacker" }, { "affs": [ 5 ], "name": "James Thurbon" }, { "affs": [ 6 ], "name": "Vince Polito" }, { "affs": [ 7 ], "name": "Xaver Funk" }, { "affs": [ 8 ], "name": "Fiona Macpherson" }, { "affs": [ 9 ], "name": "Tom Galea" }, { "affs": [ 10 ], "name": "Gavin Lawson" }, { "affs": [ 11 ], "name": "Jimi Simpson" }, { "name": "Romy Beauté" }, { "name": "Anil Kumar Seth" } ], "bibtex": "https://research.draconitic.com/paper/6vfvxg1qct9py.bib", "cited_by": 0, "doi": "10.1371/journal.pone.0359958", "fulltext_url": null, "id": "6vfvxg1qct9py", "issns": [ "1932-6203" ], "landing_url": "https://doi.org/10.1371/journal.pone.0359958", "language": null, "licence": "CC-BY-4.0", "licence_label": "CC BY 4.0", "licence_source": "journal", "licence_url": "https://creativecommons.org/licenses/by/4.0/", "metadata_licence": null, "native_subjects": [ [ "openalex", "3203|Psychedelics and Drug Studies" ], [ "plos", "/Biology and life sciences/Neuroscience/Brain mapping/Electroencephalography" ], [ "plos", "/Biology and life sciences/Neuroscience/Cognitive science/Cognitive psychology/Perception/Sensory perception" ], [ "plos", "/Biology and life sciences/Neuroscience/Cognitive science/Cognitive psychology/Perception/Sensory perception/Vision" ], [ "plos", "/Biology and life sciences/Neuroscience/Neuroimaging/Electroencephalography" ], [ "plos", "/Biology and life sciences/Neuroscience/Neurophysiology/Brain electrophysiology/Electroencephalography" ], [ "plos", "/Biology and life sciences/Neuroscience/Sensory perception" ], [ "plos", "/Biology and life sciences/Neuroscience/Sensory perception/Vision" ], [ "plos", "/Biology and life sciences/Physiology/Electrophysiology/Neurophysiology/Brain electrophysiology/Electroencephalography" ], [ "plos", "/Biology and life sciences/Psychology/Cognitive psychology/Perception/Sensory perception" ], [ "plos", "/Biology and life sciences/Psychology/Cognitive psychology/Perception/Sensory perception/Vision" ], [ "plos", "/Medicine and health sciences/Clinical medicine/Clinical neurophysiology/Electroencephalography" ], [ "plos", "/Medicine and health sciences/Clinical medicine/Signs and symptoms/Headaches/Migraine" ], [ "plos", "/Medicine and health sciences/Epidemiology/Medical risk factors" ], [ "plos", "/Medicine and health sciences/Mental health and psychiatry/Neuropsychiatric disorders/Anxiety disorders" ], [ "plos", "/Medicine and health sciences/Mental health and psychiatry/Neuroses/Anxiety disorders" ], [ "plos", "/Medicine and health sciences/Neurology/Epilepsy" ], [ "plos", "/Physical sciences/Physics/Electromagnetic radiation/Light" ], [ "plos", "/Research and analysis methods/Bioassays and physiological analysis/Electrophysiological techniques/Brain electrophysiology/Electroencephalography" ], [ "plos", "/Research and analysis methods/Imaging techniques/Neuroimaging/Electroencephalography" ], [ "plos", "/Social sciences/Psychology/Cognitive psychology/Perception/Sensory perception" ], [ "plos", "/Social sciences/Psychology/Cognitive psychology/Perception/Sensory perception/Vision" ] ], "openalex": "W7221822696", "pdf_url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0359958&type=printable", "pmcid": null, "pmid": null, "published": "2026-10-14", "publisher": "Public Library of Science", "ris": "https://research.draconitic.com/paper/6vfvxg1qct9py.ris", "sources": [ { "first_seen": "2026-10-30T12:17:23Z", "native_id": "10.1371/journal.pone.0359958", "source": "plos", "url": "https://doi.org/10.1371/journal.pone.0359958" } ], "subjects": [ { "field": "biology", "origin": "plos:neuroscience", "subfield": "neuroscience" } ], "title": "Stroboscopic light stimulation safety within and beyond laboratory settings: Observational evidence and practical guidance", "title_text": "Stroboscopic light stimulation safety within and beyond laboratory settings: Observational evidence and practical guidance", "type": "peer-reviewed", "updated_at": "2026-10-30T12:17:23Z", "url": "https://research.draconitic.com/paper/6vfvxg1qct9py", "venue": "PLOS One", "versions": [] }