This thinking was however overtaken by developments in the medical sciences in the nineteenth and twentieth centuries when a new field of psychiatry came on the scene. The new thinking under the auspices what was known as the medical model regarded abnormal behaviour as having stemmed from physiological and chemical abnormalities in the brain, this way it was analogous to physical disease. This view has thus become popular among ordinary people in society. This is the model that has now brought terms like mental illness, mentalpatient, mental hospital and psychopathology. …show more content…
The classification became so useful for helping doctors to diagnose and treat the underlying disease,forexample the symptoms of a heart disease may be chest and left armpain, sweating, and ingestion.
This medical model classification of symptoms proved very useful in the diagnosis and treatment of physical diseases, psychiatrics decided to adopt a similar system to deal with abnormal behaviours.
Kraepelin (1913) claimed that certain patterns of abnormal behaviour occur together sufficiently often that they could be called a ‘disease’ or syndrome.
This idea of Kraepelin in 1913, later-on, triggered the first classification of two though overlapping systems widely used today. They are the International Classification of Disease (ICD-10) which was published by the World Health Organisation in1987 and in currently used in the United Kingdom. The other is called the Diagnostic and Statistical Manual of Mental Disorders (DSMIV), published in 1994 and used in the United