{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T13:42:51Z","timestamp":1791985371576,"version":"4.4.0"},"reference-count":4,"publisher":"S. Karger AG","issue":"1","license":[{"start":{"date-parts":[[2003,1,1]],"date-time":"2003-01-01T00:00:00Z","timestamp":1041379200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2003,1,1]],"date-time":"2003-01-01T00:00:00Z","timestamp":1041379200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Psychopathology"],"published-print":{"date-parts":[[2003]]},"abstract":"<jats:p>Induced delusional disorder (or shared paranoid disorder), also known as folie \u00e0 deux, is a fairly uncommon disturbance characterized by the presence of similar psychotic symptoms in two or more individuals. Most often the symptoms are delusional. Usually the \u2018primary\u2019 case, i.e. the individual who first develops psychotic symptoms, can be distinguished from one or more \u2018secondary\u2019 cases, in whom the symptoms are induced. We discuss the concept of shared paranoid disorder and consider various aetiological, clinical and diagnostic issues related to the disturbance. We also describe a case of folie \u00e0 famille, this condition being a type of shared paranoid disorder. The case involves a couple and their 12-year-old son. The boy\u2019s father is the \u2018primary\u2019 case, whilst the boy and his mother are both \u2018secondary\u2019 cases. The boy was admitted to our child and adolescent psychiatric unit for in-patient treatment. Treatment success was moderate in terms of improving the features of folie \u00e0 famille in the three individuals involved.<\/jats:p>","DOI":"10.1159\/000069657","type":"journal-article","created":{"date-parts":[[2003,4,15]],"date-time":"2003-04-15T21:05:40Z","timestamp":1050440740000},"page":"37-45","source":"Crossref","is-referenced-by-count":33,"title":["Induced Delusional Disorder"],"prefix":"10.1159","volume":"36","author":[{"given":"Peter M.","family":"Wehmeier","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolaus","family":"Barth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helmut","family":"Remschmidt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2003,4,11]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s007870170026"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016\/0010-440X(85)90033-1"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016\/S0920-9964(96)00069-2"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1016\/0010-440X(93)90056-A"}],"container-title":["Psychopathology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/69657","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/69657","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T03:46:19Z","timestamp":1745466379000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000069657"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2003]]},"references-count":4,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2003,2,1]]}},"URL":"https:\/\/doi.org\/10.1159\/000069657","archive":["Portico"],"relation":{},"ISSN":["0254-4962","1423-033X"],"issn-type":[{"value":"0254-4962","type":"print"},{"value":"1423-033X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2003]]}}}