{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T22:58:46Z","timestamp":1790377126278,"version":"4.1.0"},"reference-count":40,"publisher":"Canadian Science Publishing","issue":"5","license":[{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Psychiatry Neurosci"],"published-print":{"date-parts":[[2015,9]]},"abstract":"<jats:sec><jats:title>Background:<\/jats:title><jats:p> Previous studies have reported MRI abnormalities of the corpus callosum (CC) in patients with bipolar disorder (BD), although only a few studies have directly compared callosal areas in psychotic versus nonpsychotic patients with this disorder. We sought to compare regional callosal areas in a large international multicentre sample of patients with BD and healthy controls. <\/jats:p><\/jats:sec><jats:sec><jats:title>Methods:<\/jats:title><jats:p> We analyzed anatomic T<jats:sub>1<\/jats:sub> MRI data of patients with BD-I and healthy controls recruited from 4 sites (France, Germany, Ireland and the United States). We obtained the mid-sagittal areas of 7 CC subregions using an automatic CC delineation. Differences in regional callosal areas between patients and controls were compared using linear mixed models (adjusting for age, sex, handedness, brain volume, history of alcohol abuse\/dependence, lithium or antipsychotic medication status, symptomatic status and site) and multiple comparisons correction. We also compared regional areas of the CC between patients with BD with and without a history of psychotic features. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p> We included 172 patients and 146 controls in our study. Patients with BD had smaller adjusted mid-sagittal CC areas than controls along the posterior body, the isthmus and the splenium of the CC. Patients with a positive history of psychotic features had greater adjusted area of the rostral CC region than those without a history of psychotic features. <\/jats:p><\/jats:sec><jats:sec><jats:title>Limitations:<\/jats:title><jats:p> We found small to medium effect sizes, and there was no calibration technique among the sites. <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion:<\/jats:title><jats:p> Our results suggest that BD with psychosis is associated with a different pattern of interhemispheric connectivity than BD without psychosis and could be considered a relevant neuroimaging subtype of BD. <\/jats:p><\/jats:sec>","DOI":"10.1503\/jpn.140262","type":"journal-article","created":{"date-parts":[[2015,8,20]],"date-time":"2015-08-20T08:17:19Z","timestamp":1440058639000},"page":"352-359","source":"Crossref","is-referenced-by-count":45,"title":["Corpus callosum area in patients with bipolar disorder with and without psychotic features: an international multicentre study"],"prefix":"10.1139","volume":"40","author":[{"given":"Samuel","family":"Sarrazin","sequence":"first","affiliation":[{"name":"From AP-HP, H\u00f4pital H. Mondor \u2013 A. Chenevier, DHU PePSY, P\u00f4le de Psychiatrie, Cr\u00e9teil, France"},{"name":"Universit\u00e9 Paris-Est, UMR_S955, UPEC, F-94000, Cr\u00e9teil, France"},{"name":"Fondation FondaMental, fondation de coop\u00e9ration scientifique, F-94000, Cr\u00e9teil, France"},{"name":"UNIACT, Neurospin, Commissariat \u00e0 l\u2019Energie Atomique, Centre d\u2019\u00e9tudes de Saclay, Gif sur Yvette"},{"name":"INSERM, U955, Equipe Psychopathologie des maladies psychiatriques, F-94000, Cr\u00e9teil, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc-Antoine","family":"d\u2019Albis","sequence":"additional","affiliation":[{"name":"From AP-HP, H\u00f4pital H. Mondor \u2013 A. 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