{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T14:20:03Z","timestamp":1791555603522,"version":"4.3.4"},"reference-count":55,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2024,8,13]],"date-time":"2024-08-13T00:00:00Z","timestamp":1723507200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Psychopharmacol"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Psychedelic substances reliably induce marked altered states of consciousness (ASC), which may be important for lasting effects and clinical outcomes of psychedelic intervention. Several instruments are available to measure the acute psychedelic experience, of which the Five Dimensional Altered States of Consciousness Questionnaire (5D-ASC) is commonly used. The questionnaire can be scored and analyzed as having five dimensions or 11 subscales, but the two have not been evaluated with comparable factor analysis methods.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>The Danish translation of the 5D-ASC was completed by one sample of healthy volunteers receiving psilocybin in a laboratory setting ( N\u2009=\u200947) and one sample of recreative users5D-ASC of psychedelics ( N\u2009=\u2009550), who reported retrospectively through an online survey based on their most recent experience with psilocybin. We calculated internal consistency measures of Cronbach\u2019s alpha and McDonald\u2019s omega, conducted a confirmatory factor analysis of the previously suggested factor structures, and tested for possible associations between the 5D-ASC total scores and dose, setting, and intention. For the 11 subscales, we reported omega-sem (composite reliability) using the parameters of the fitted confirmatory factor analyses model.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Confirmatory factor analysis showed that the 11 subscales had a good fit to data and showed a better fit compared to the originally proposed five-dimensional solution and good internal consistencies. We further found that the 5D-ASC total scores correlated positively with the dose in the recreative sample. We found no correlations between 5D-ASC total scores and intention or setting.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion:<\/jats:title>\n                    <jats:p>We find the Danish 5D-ASC to be a valid tool for measuring ASC among Danish-speaking individuals.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02698811241269669","type":"journal-article","created":{"date-parts":[[2024,8,13]],"date-time":"2024-08-13T03:24:15Z","timestamp":1723519455000},"page":"924-932","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Altered states of consciousness in Danish healthy volunteers and recreational users of psilocybin and the possible impact of setting and intention: Danish validation of the five-dimensional altered states of consciousness questionnaire"],"prefix":"10.1177","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6928-6113","authenticated-orcid":false,"given":"Oliver Rumle","family":"Hovmand","sequence":"first","affiliation":[{"name":"Psychiatric Research Unit, Region Zealand Psychiatry, Slagelse, Denmark"},{"name":"Psychiatry South, Region Zealand Psychiatry, Vordingborg, Denmark"},{"name":"Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark"},{"name":"Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin Korsbak","family":"Madsen","sequence":"additional","affiliation":[{"name":"Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark"},{"name":"Department of Neurology, Odense University Hospital, Region of Southen Denmark, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8115-0611","authenticated-orcid":false,"given":"Patrick MacDonald","family":"Fisher","sequence":"additional","affiliation":[{"name":"Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark"},{"name":"Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5439-4637","authenticated-orcid":false,"given":"Dea Siggaard","family":"Stenb\u00e6k","sequence":"additional","affiliation":[{"name":"Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark"},{"name":"Department of Neurology, Odense University Hospital, Region of Southen Denmark, Denmark"},{"name":"Department of Psychology, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,8,13]]},"reference":[{"key":"bibr1-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1093\/ijnp\/pyac075"},{"key":"bibr2-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.314.7080.572"},{"key":"bibr3-02698811241269669","volume-title":"Konstruktion des Fragebogens OAV zut quantitativen Erfassung au\u03b2ergew\u00f6hnlicher Bewu\u03b2tseinszust\u00e4nde (ABZ)","author":"Bodmer I","year":"1989"},{"key":"bibr4-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1177\/0269881114565144"},{"key":"bibr5-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1001\/jamapsychiatry.2022.2096"},{"key":"bibr6-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0042421"},{"key":"bibr7-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1016\/S2215-0366(16)30065-7"},{"key":"bibr8-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa2032994"},{"key":"bibr9-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.55.4.584"},{"key":"bibr10-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1001\/jamapsychiatry.2020.3285"},{"key":"bibr11-02698811241269669","first-page":"12","volume":"23","author":"Dittrich A","year":"1975","journal-title":"Z Klin Psychol Psychiatr Psychother"},{"key":"bibr12-02698811241269669","volume-title":"\u00c4tiologie-unabh\u00e4ngige Strukturen ver\u00e4nderter Wachbewusstseinszust\u00e4nde. Ergebnisse empirischer Untersuchungen \u00fcber Halluzinogene I. und II. Ordnung, sensorische Deprivation, Hypnagoge Zust\u00e4nde, Hypnotische Verfahren Sowie Reiz\u00fcberflutung","author":"Dittrich A","year":"1985"},{"key":"bibr13-02698811241269669","first-page":"319","volume":"9","author":"Dittrich A","year":"1985","journal-title":"Ger J Psychol"},{"key":"bibr14-02698811241269669","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-979351"},{"key":"bibr15-02698811241269669","unstructured":"Dittrich A, Lamparter D, Maurer M (2006) 5D-ABZ: Fragebogen zur Erfassung Aussergew\u00f6hnlicher Bewusstseinszust\u00e4nde. Eine kurze Einf\u00fchrung [5D-ASC: Questionnaire for the Assessment of Altered States of Consciousness. A Short Introduction]. Z\u00fcrich: PSIN PLUS Publications."},{"key":"bibr16-02698811241269669","volume-title":"5D-ASC: Questionnaire for the assessment of altered states of consciousness. 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