Hi B, hi Fiachra, I did not have the time to research this, but I would not be surprised if the so-called negative symptoms of “Schizophrenia” became more prevalent in the official psychiatric “diagnostic” scheme during the time the first-generation major tranquilizers began to take hold as the “first-line” treatment option for “Schizophrenia” in the early 1950s. Yet another instance of re-labeling so-called adverse effects of drugs as “symptoms” of a “mental disease”. Apart from the fact that the whole schizophrenia-concept (1908, Eugen Bleuler) was originally primarily based on a then unknown virus infection of the CNS, encephalitits lethargica – turned ‘dementia praecox’ turned “schizophrenia”… and now, over a century later, the schizophrenic ghost of Christmas Past ist still with us – how did this happen? Britta p.s. B, hope you don’t mind the ‘Du’. 🙂 Haste das Buch von Strate zum Mollath-“Fall” schon gelesen? Good stuff, me thinks.