Abnormal forms of human behaviour have existed for as long as records have been kept, though the history of abnormal psychology is not necessarily related to that of medicine. Mora (1967) has suggested that the earliest concepts of mental disorders were probably influenced by universal beliefs in supernatural phenomena, and specifically by a belief in ancestral spirits. For this reason the first models of abnormal behaviour were generally of a religious nature, the mentally disturbed person being seen as powerful and supernormal. In such models it was usually assumed that medicine had no power over the ‘possessed’ individual, and even that it had no right to deal with such people (Zilboorg and Henry 1941).
KeywordsClassical Conditioning Medical Model Abnormal Behaviour Historical Background Organic Model
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