The viewpoints which help to understand the causes of abnormal behaviour are:
The viewpoints help researchers in organising the observations which they made and provide a system of thought in arranging the observed data and the areas of focus in research and also treatment.
1. Biological viewpoint
2. Behavioural and cognitive-behavioural viewpoints
3. Sociocultural viewpoint
1. Biological viewpoint: the biological disorder or organic components which are associated to brain damage tissue these disorders are considered to be neurological disease. The disruption in functioning of brain in a physical or biochemical ways which often involve psychological or behavioural aberrations. Sometimes the mental disorders occur by abnormalities in neurotransmitter systems in the brain without the damage to the brain externally or internally. Example: damage to the left hemisphere lead to depression in an individual which is a result of stroke.
2. Psychological viewpoint: depending upon the desires, opinions, motives, perceptions and thoughts of humans psychologically considering in a best way is a wide range in interpreting the abnormal behaviour. The human behaviour is considered to be influentional. The three viewpoints shows distinct and also conflicting orientations and also complementary. They all emphasize the worthy of early experience in an individual and also psychological awareness along with social awareness.
3. Sociocultural viewpoint: the society and its institutions and norms, values, ideas, family and other group play the important role in individual personality development. Research studies showed clear human relationships between different sociocultural situations and psychological disorders. The patterns of both physical and psychological disorders in a particular society changes with the changes occur in the over times of Sociocultural conditions. These discoveries manages importance for new dimensions for modern perspectives on abnormal behaviour.