{"id":13715,"date":"2025-06-23T13:29:00","date_gmt":"2025-06-23T11:29:00","guid":{"rendered":"https:\/\/ivrt.de\/?p=13715"},"modified":"2026-02-06T16:59:26","modified_gmt":"2026-02-06T15:59:26","slug":"sensorische-umgewichtung-nach-cybersickness-und-parabelflug-einblick-in-multisensorische-integration-unter-konfliktbedingungen","status":"publish","type":"post","link":"https:\/\/ivrt.de\/en\/studien-evidenz\/sensorische-umgewichtung-nach-cybersickness-und-parabelflug-einblick-in-multisensorische-integration-unter-konfliktbedingungen\/","title":{"rendered":"Sensory reweighting after cyber sickness and parabolic flight \u2013 insight into multisensory integration under conflict conditions"},"content":{"rendered":"<p><strong>For Healthcare Professionals:<\/strong><\/p>\n\n\n\n<p>Sensory conflicts are considered the main cause of <a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/reisekrankheit-und-cyberkrankheit\/\" data-type=\"post\" data-id=\"7217\">motion sickness and cyber sickness<\/a>. Despite technological advances, the integrative processes during such conflicts remain poorly understood. A recent study by <strong>Bonnard et al. (2025)<\/strong> provides new insights into how the brain differentially weights visual and vestibular information under sensory conflict.<\/p>\n\n\n\n<p>\ud83d\udd17 <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40424142\/\"><strong>Original study<\/strong><\/a><strong><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40421807\/\">u<\/a><\/strong><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40424142\/\"><strong>on PubMed<\/strong><\/a><\/p>\n\n\n\n<p><strong>Study design:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Two paradigms:<\/strong>\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Visuo-vestibular conflict induced by illusory self-motion (vection) using virtual reality (VR)<\/li>\n\n\n\n<li>Vestibular conflict induced by gravity shifts during parabolic flight<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Measurement methods:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Suppression of the vestibulo-ocular reflex (VOR) \u2192 measure of vestibular weighting<\/li>\n\n\n\n<li>Optokinetic nystagmus (<strong>OKN)<\/strong> \u2192 measure of visual dominance<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>Key results<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>VR exposure<\/strong> reduced VOR response by <strong>12<\/strong><strong>\u202f%<\/strong> \u2192 decreased vestibular weighting<\/li>\n\n\n\n<li><strong>Parabolic flight<\/strong> reduced OKN performance by <strong>13<\/strong><strong>\u202f%<\/strong> \u2192 decreased visual weighting<\/li>\n\n\n\n<li>The <strong>modality-specific suppression<\/strong> suggests that the brain systematically down-weights the <em>less reliable<\/em> signal in context\u2014an adaptive reorganization mechanism.<\/li>\n\n\n\n<li><strong>Cyber sickness<\/strong> correlated with <strong>visual hypersensitivity<\/strong>, while vestibular hypersensitivity correlated with motion sickness severity in parabolic flight.<\/li>\n<\/ul>\n\n\n\n<p><strong>Conclusion for Practice<\/strong><\/p>\n\n\n\n<p>These findings support a dynamic sensory reweighting model: the less reliable sensory input is modulated in favor of others. This has important implications for virtual reality applications, astronaut training, and individualized prevention and therapy for motion sickness.<\/p>\n\n\n\n<p><strong>\ud83d\udc49 Want to learn which disorders are associated with <a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/visuell-induzierter-schwindel\/\" data-type=\"post\" data-id=\"7387\">visual and vestibular hypersensitivity<\/a> , and how to best treat them?<\/strong><br>Current further education opportunities can be found in the <strong><a href=\"https:\/\/ivrt.de\/en\/fuer-medizinisches-fachpersonal\/fortbildungssuche\/\" data-type=\"link\" data-id=\"https:\/\/ivrt.de\/fuer-medizinisches-fachpersonal\/fortbildungssuche\/\">IVRT Course search<\/a>.<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>For Patients \u2013 Easy to Understand<\/strong><\/p>\n\n\n\n<p><strong>Why we get sick on airplanes or with VR headsets \u2013 and what the brain does about it<\/strong><\/p>\n\n\n\n<p>Many people know the feeling: dizziness or nausea when playing with a VR headset or during an extreme flight maneuver. A new study by <strong>Bonnard et al. (2025)<\/strong> shows how our brain re-evaluates sensory impressions in these situations \u2014 and how this affects <a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/reisekrankheit-und-cyberkrankheit\/\" data-type=\"post\" data-id=\"7217\">motion sickness <\/a>.<\/p>\n\n\n\n<p>\ud83d\udcc4 <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40493671\/\" data-type=\"link\" data-id=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40421807\/\">Original study<\/a><\/p>\n\n\n\n<p><strong>What was examined?<\/strong><\/p>\n\n\n\n<p>Scientists wanted to know how the brain decides which senses to trust when they send conflicting signals. They placed participants in two situations:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Virtual reality (VR)<\/strong>: Movement was only simulated <em>visually<\/em> , but the body felt nothing.<\/li>\n\n\n\n<li><strong>Parabolic flight<\/strong>: The body felt <em>real<\/em> movement, but the eyes saw no change.<\/li>\n<\/ol>\n\n\n\n<p><strong>What are the findings?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>After VR, the brain trusted signals from the balance system (vestibular system) <strong>less<\/strong>.<\/li>\n\n\n\n<li>After parabolic flight, it trusted the eyes <strong>less<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>In other words: the brain tries to <em>filter out<\/em>\u201cless accurate\u201d sense to cope better with conflicting impressions.<\/p>\n\n\n\n<p><strong>What does this mean?<\/strong><\/p>\n\n\n\n<p>Depending on individual sensitivity, some people are more prone to <strong>Cyber sickness<\/strong> (VR nausea), while others are more prone to <strong>motion sickness<\/strong> . This helps explain <strong>who is vulnerable to what<\/strong> \u2014 and how these problems might be treated more effectively.<\/p>\n\n\n\n<p><strong>Want to learn more?<\/strong>?<\/p>\n\n\n\n<p>If you want to learn more about <a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/visuell-induzierter-schwindel\/\" data-type=\"post\" data-id=\"7387\">visually induced dizziness<\/a> and \"<a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/reisekrankheit-und-cyberkrankheit\/\" data-type=\"post\" data-id=\"7217\">Cyber sickness<\/a>check out our patient information sheets.<\/p>\n\n\n\n<p>There you\u2019ll find explanations on how <a href=\"https:\/\/ivrt.de\/en\/patientenedukation\/vestibulaere-rehabilitationstherapie-und-gleichgewichtstraining\/\" data-type=\"post\" data-id=\"8932\">vestibular rehabilitation<\/a> and visual habituation exercises can help with motion sickness and cyber sickness.<\/p>\n\n\n\n<p>These treatment methods are offered by our IVRT\u00ae dizziness and vestibular therapists.<\/p>\n\n\n\n<p>\ud83c\udfaf <strong>Specially trained IVRT\u00ae dizziness and vestibular therapists<\/strong> can be found via our <strong><a href=\"https:\/\/ivrt.de\/en\/fuer-betroffene\/therapeutensuche\/\" data-type=\"page\" data-id=\"101\">IVRT therapist search<\/a><\/strong><\/p>\n\n\n\n<p><a id=\"_msocom_1\"><\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>F\u00fcr Fachpersonal: Sensorische Konflikte gelten als Hauptursache f\u00fcr Reisekrankheit und Cybersickness. Die integrativen Prozesse w\u00e4hrend dieser sensorischen Konflikte sind trotz technischer Fortschritte nur unzureichend verstanden. Eine aktuelle Studie von Bonnard et al. (2025) liefert neue Erkenntnisse dar\u00fcber, wie das Gehirn visuelle und vestibul\u00e4re Informationen unter sensorischem Konflikt unterschiedlich gewichtet. \ud83d\udd17 Originalstudie auf PubMed Studiendesign: Zentrale [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":13716,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"_jf_save_progress":"","iawp_total_views":122,"footnotes":""},"categories":[215],"tags":[],"class_list":["post-13715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-studien-evidenz"],"_links":{"self":[{"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/posts\/13715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/comments?post=13715"}],"version-history":[{"count":1,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/posts\/13715\/revisions"}],"predecessor-version":[{"id":17487,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/posts\/13715\/revisions\/17487"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/media\/13716"}],"wp:attachment":[{"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/media?parent=13715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/categories?post=13715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ivrt.de\/en\/wp-json\/wp\/v2\/tags?post=13715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}