Schizophrenia
Chapter 11 discusses how, of all the major psychiatric syndromes, schizophrenia is the most difficult to define and describe. This partly reflects the fact that, over the past 100 years, widely divergent concepts have been held in different countries and by different psychiatrists. Although there is now a greater consensus, substantial uncertainties remain. Indeed, schizophrenia remains the best example of the fundamental issues with which psychiatry continues to grapple—concepts of disease, classification, and aetiology. Having noted the complexities, we start with an introduction to acute schizophrenia and chronic schizophrenia. The reader should bear in mind that these will be idealized descriptions and comparisons, but it is useful to oversimplify at first before introducing the controversial issues.