Clinical neuropsychological is an applied science concerned with the behavioral expression of brain dysfunction. It owes its concepts to those who puzzled about what people made people do what they did and how. These people first called attention to what seemed to be linkages between body structures and people’s common response to common situations and behavioral anomalies. In the 19th century the idea of controlled observations became generally accepted. The beginning of the basis schema of brain behavioral relationships. In the first half of the 20th century, war-damaged brains gave the chief impetus to the development of clinical neuropsychology. Neuropsychological programs were created for the First World War for screening and diagnosis of brain injured and behavioral disturbed servicemen and for their rehabilitation afterwards. The Second World War promoted the development of many talented neuropsychologists and of increasingly sophisticated examination and treatment techniques.Clinical neuropsychology can trace its lineage directly to the clinical neurosciences. Psychology contributed to the two other domains of knowledge and skills that are integral to the scientific discipline...