Until the end of the 19th century little distinction was made between complaints of poor memory due to disorders that have since been shown to be organic in nature and memory disturbances of a less certain prominence—for example, Ganserian states. Since then, and increasingly over the past decade, memory disorder as a clinical concept has narrowed to embrace only those disorders in which memory impairment can be objectively demonstrated and measured. The authors deplore this development and the main purpose and thrust of this volume is to rectify it. They, a psychiatrist …