{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T17:59:13Z","timestamp":1790359153489,"version":"4.1.0"},"reference-count":39,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T00:00:00Z","timestamp":1788393600000},"content-version":"vor","delay-in-days":245,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Study Objectives<\/jats:title>\n                    <jats:p>Cognitive-behavioral therapy for insomnia (CBT-I) effectively targets dysfunctional sleep beliefs but remains inaccessible to most. This study examined whether a single 60-minute mass psychoeducation session, incorporating Scarcity Theory with CBT-I psychoeducation elements and Acceptance and Commitment Therapy concepts, could reduce dysfunctional beliefs and insomnia symptoms over 4\u00a0weeks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>This prospective, single-arm study was conducted at Seoul National University Bundang Hospital. Of 182 lecture attendees, 81 consented, 40 completed baseline and immediate post-lecture assessments, and 29 completed all four timepoints through 4\u00a0weeks. The primary outcome was the Korean Dysfunctional Beliefs and Attitudes about Sleep-6 (K-DBAS-6). Secondary outcomes included the Insomnia Severity Index-3 (ISI-3), Bandwidth Tax Visual Analogue Scale (BT-VAS), and Patient Global Impression measures. Longitudinal effects were analyzed using repeated measures ANOVA (N\u00a0=\u200929).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>K-DBAS-6 decreased significantly (d\u200az\u2009=\u20090.63, p\u2009=\u2009.003). ISI-3 (d\u200az\u2009=\u20090.60, p\u2009=\u2009.003), BT-VAS (d\u200az\u2009=\u20090.62, p\u2009=\u2009.002), and PGI-S (d\u200az\u2009=\u20090.97, p\u2009&amp;lt;\u2009.001) also improved. BT-VAS showed immediate post-lecture reduction (d\u200az\u2009=\u20090.63, p\u2009&amp;lt;\u2009.001; N\u00a0=\u200940). At 4\u00a0weeks, 72.4% reported global improvement (PGI-I\u2009\u2264\u20093). Anchor-based minimal clinically important differences were 1.32 (K-DBAS-6), 1.58 (ISI-3), and 1.83 (BT-VAS). All effects remained significant after adjusting for age and sex.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>A single mass psychoeducation session informed by Scarcity Theory produced significant, sustained reductions in dysfunctional sleep beliefs and insomnia symptoms with medium effect sizes. This scalable approach warrants investigation as a first-step intervention for insomnia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/sleepadvances\/zpag099","type":"journal-article","created":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T17:49:18Z","timestamp":1788457758000},"source":"Crossref","is-referenced-by-count":0,"title":["Breaking the sleep tunnel: effects of a single-session scarcity-informed mass psychoeducation on dysfunctional beliefs and insomnia symptoms"],"prefix":"10.1093","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2204-8067","authenticated-orcid":false,"given":"Chang-Ho","family":"Yun","sequence":"first","affiliation":[{"name":"Department of Neurology, Seoul National University Bundang Hospital and Seoul National University College of Medicine , Seongnam ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saeil","family":"Nam","sequence":"additional","affiliation":[{"name":"Department of Neurology, Seoul National University Bundang Hospital and Seoul National University College of Medicine , Seongnam ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyeongsuk","family":"Ryu","sequence":"additional","affiliation":[{"name":"Department of Neurology, Seoul National University Bundang Hospital and Seoul National University College of Medicine , Seongnam ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang-Min","family":"Paik","sequence":"additional","affiliation":[{"name":"Department of Neurology, Seoul National University Bundang Hospital and Seoul National University College of Medicine , Seongnam ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jae Rim","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurology, Chungnam National University Sejong Hospital, Chungnam National University School of Medicine , Sejong ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jee-Eun","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of Neurology, Soonchunhyang University Bucheon Hospital , Bucheon ,","place":["Republic of Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,9,3]]},"reference":[{"issue":"2","key":"2026092513132090500_ref1","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1053\/smrv.2002.0186","article-title":"Epidemiology of insomnia: what we know and what we still need to learn","volume":"6","author":"Ohayon","year":"2002","journal-title":"Sleep Med Rev"},{"issue":"5","key":"2026092513132090500_ref2","doi-asserted-by":"publisher","first-page":"e70089","DOI":"10.1111\/jsr.70089","article-title":"The prevalence of insomnia disorder in the general population: a meta-analysis","volume":"34","author":"van Straten","year":"2025","journal-title":"J Sleep Res"},{"key":"2026092513132090500_ref3","doi-asserted-by":"publisher","first-page":"96","DOI":"10.1016\/j.smrv.2018.10.006","article-title":"Insomnia as a predictor of mental disorders: a systematic review and meta-analysis","volume":"43","author":"Hertenstein","year":"2019","journal-title":"Sleep Med Rev"},{"issue":"6","key":"2026092513132090500_ref4","doi-asserted-by":"publisher","first-page":"e13930","DOI":"10.1111\/jsr.13930","article-title":"Insomnia-a risk factor for mental disorders","volume":"32","author":"Hertenstein","year":"2023","journal-title":"J Sleep Res"},{"issue":"1-3","key":"2026092513132090500_ref5","doi-asserted-by":"publisher","first-page":"10","DOI":"10.1016\/j.jad.2011.01.011","article-title":"Insomnia as a predictor of depression: a meta-analytic evaluation of longitudinal epidemiological studies","volume":"135","author":"Baglioni","year":"2011","journal-title":"J Affect Disord"},{"issue":"1","key":"2026092513132090500_ref6","doi-asserted-by":"publisher","first-page":"5","DOI":"10.1016\/j.smrv.2011.02.002","article-title":"Acute insomnia: current conceptualizations and future directions","volume":"16","author":"Ellis","year":"2012","journal-title":"Sleep Med Rev"},{"issue":"2","key":"2026092513132090500_ref7","doi-asserted-by":"publisher","first-page":"263","DOI":"10.5664\/jcsm.8988","article-title":"Behavioral and psychological treatments for chronic insomnia disorder in adults: an American Academy of sleep medicine systematic review, meta-analysis, and GRADE assessment","volume":"17","author":"Edinger","year":"2021","journal-title":"J Clin Sleep Med"},{"issue":"2","key":"2026092513132090500_ref8","doi-asserted-by":"publisher","first-page":"125","DOI":"10.7326\/M15-2175","article-title":"Clinical guidelines Committee of the American College of P. 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