{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T07:12:48Z","timestamp":1792653168089,"version":"4.5.0"},"reference-count":40,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2021,3,10]],"date-time":"2021-03-10T00:00:00Z","timestamp":1615334400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["VES"],"published-print":{"date-parts":[[2021,3,10]]},"abstract":"<jats:p>BACKGROUND: Magnetic Resonance Imaging (MRI) scanning can induce psychological effects. No studies have investigated the role of magnetic vestibular stimulation (MVS) in 3TMRI scanner-induced psychological reactions. OBJECTIVE: To assess depersonalization\/derealization (DD), state anxiety and motion-perception in a 3TMRI scanner, acutely and long-term. PARTICIPANTS: 48 healthcare professionals and students were included, after preliminary rejection of claustrophobes and neuro-otology and psychiatry assessments. PROCEDURES: Participants completed questionnaires on personal habits, dissociation, anxiety\/depression and motion sickness susceptibility. Validated DD and state anxiety questionnaires were administered before and after magnetic exposure twice, entering the bore head and feet first in random order, one week apart. During the following week, dizziness\/disorientation was reported daily. One month later, 11 subjects repeated the procedure to assess reproducibility. RESULTS: Considerable individual susceptibility was observed, circa 40% of the subjects reported self-motion perception related to the exposure, with variable increase on DD symptoms. Multivariate analysis showed that DD scores after any exposure were influenced by entering the bore \u201cfeet first\u201d, motion-perception, and the mean sleep hours\/week (MANCOVA, R\u200a=\u200a0.58, p\u200a=\u200a0.00001). There was no clear effect of scanner exposure on state anxiety, which was related to trait anxiey but not to DD scores. During repeated exposures, about half of all subjects re-entering the scan reported motion-perception, but DD or anxiety symptoms were not consistent. CONCLUSION: Psychological effects during 3TMRI scanning result from multiple, interacting factors, including novelty of the procedure (first-exposure effect), motion-perception due to MVS, head\/body orientation, sleeping habits and individual susceptibility. Forewarning subjects of these predisposing factors may increase tolerance to MRI scanning.<\/jats:p>","DOI":"10.3233\/ves-201577","type":"journal-article","created":{"date-parts":[[2020,12,9]],"date-time":"2020-12-09T00:47:59Z","timestamp":1607474879000},"page":"69-80","source":"Crossref","is-referenced-by-count":5,"title":["Derealization and motion-perception related to repeated exposure to 3T Magnetic Resonance Image scanner in healthy adults"],"prefix":"10.1177","volume":"31","author":[{"given":"Sergio","family":"Mart\u00ednez-Gallardo","sequence":"first","affiliation":[{"name":"Departamento de Imagen por Resonancia Magn\u00e9tica, Hospital de Especialidades del Centro Medico Nacional sXXI, Instituto Mexicano del Seguro Social, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 A.","family":"Miguel-Puga","sequence":"additional","affiliation":[{"name":"Unidad de Investigaci\u00f3n M\u00e9dica en Otoneurolog\u00eda, Instituto Mexicano del Seguro Social, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Davis","family":"Cooper-Bribiesca","sequence":"additional","affiliation":[{"name":"Departamento de Psiquiatr\u00eda, Hospital de Especialidades del Centro Medico Nacional sXXI, Instituto Mexicano del Seguro Social, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adolfo M.","family":"Bronstein","sequence":"additional","affiliation":[{"name":"Neuro-otology Unit, Imperial College London, Charing Cross Hospital, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathrine","family":"J\u00e1uregui-Renaud","sequence":"additional","affiliation":[{"name":"Departamento de Imagen por Resonancia Magn\u00e9tica, Hospital de Especialidades del Centro Medico Nacional sXXI, Instituto Mexicano del Seguro Social, Ciudad de M\u00e9xico, M\u00e9xico"},{"name":"Unidad de Investigaci\u00f3n M\u00e9dica en 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