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Having studied the clinical forms in which mental disease presents itself, and the relation of these forms to the somatic affections, it is next in order to approach the subject from the standpoint of age. In so doing, we will pass over ground much of which is familiar, but some of which is new. Age may be conveniently divided into six periods: (1) Infancy, the period from birth to puberty; (2) Adolescence, the period from puberty to adult age; (3) Early Adult Age; (4) Mature Adult Age; (5) Middle Age; and (6) Old Age. Such a division, though largely arbitrary, is clinically useful. When we take up the period of infancy, we find at once that the subject resolves itself into a consideration, first, of insanity in children and, second, of mental deficiencies the result of arrested development or gross pathologic conditions. (PsycInfo Database Record (c) 2022 APA, all rights reserved)
Published: Feb 8, 2010
Keywords: mental disease; age differences; mental deficiency; pathology; Mental Retardation
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