The development of Kraepelin’s mature diagnostic concept of hebephrenia: a close reading of relevant texts of Hecker, Daraszkiewicz, and Kraepelin

In developing his mature concept of hebephrenic dementia praecox (DP) in his 4th (1893) through 6th textbook editions (1899), Kraepelin worked from the hebephrenic syndrome first described by Hecker (1871) and then carefully studied by his student Daraszkiewicz (1892). Working under Kraepelin’s supe...

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