In: The Depressed Child and Adolescent 2001; 119-142
With thanks to Cambridge University Press for their support for this project and for giving permission to reproduce this chapter.
Israel Kolvin and Hartwin Sadowski, " Childhood depression: clinical phenomenology and classification", pp. 119-142, in Ian Goodyer (ed.), The Depressed Child and Adolescent, 2nd edition, (Cambridge: Cambridge University Press 2001).
Research into the nature and characteristics of depression in adults has provided an important framework for wider investigations of depression. In a clinical sense, the term 'depression' denotes an illness characterised by a change in mood that is persistent and sufficiently severe for it to be labelled a disorder. In adult psychiatry, much research attention has focused on the classification of depression. Two major distinctions have emerged: first, between bipolar and unipolar affective disorders and second, between psychotic (or endogenous) and neurotic (or reactive) depression (Paykel & Priest, 1992; Ramana & Paykel, 1992).