Ko da yake Eugen Bleuler ya kirkiro shi a cikin 1908 kuma an yi nufin ya bayyana rabuwa da aiki tsakanin mutum, tunani, ƙwaƙwalwar ajiya, da fahimta. Fassarar Amurka da ta Burtaniya na Bleuler sun haifar da da'awar cewa ya bayyana manyan alamunta a matsayin A's huɗu: flattened affect, autism, lalata haɗin ra'ayoyi, da ambivalence. Bleuler ya fahimci cewa cutar ba dementia ba ce, kamar yadda wasu daga cikin batutuwansa suka inganta maimakon lalacewa, don haka ya ba da shawarar cutar ta schizophrenia. An fassara fassarar juyin juya hali a cikin shekarun 1950s tare da fasalin mutumtaka da kuma ci gaban phrēn- (φρεν, φρεν-, "tunani") a tsakiyar shekarun 1970s. Wannan binciken ya haifar da rikice-rikice a tsakanin mutanen da ke fama da schizophrenia a Amurka da Turai, wanda ya haifar da rashin fahimta da rashin fahimta a tsakanin wasu mutane da ke fama da cutar ta schizophrenia. "A cikin binciken da aka yi a Amurka bayan shekara ta 1972, DSM-III ya ba da damar yin amfani da kalmar nan
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