Operation of supernatural and magical forces: Ancient theories often attributed abnormal behavior to the influence of spirits, demons, or supernatural powers. This approach is rooted in the belief that psychological disorders result from the influence of forces outside the individual's control.
Inadequacies in thinking, feeling or perceiving the world: This perspective refers to the cognitive models which consider abnormal behavior to be a result of distorted thought processes or an incorrect perception of reality.
Disturbed interpersonal relationships: Disturbed interpersonal relationships is a concept from the interpersonal approach to psychology, where abnormal behavior is seen as a result of a person's relationship with others.
Belief that individuals behave strangely because their bodies and brains are not working properly: This statement points towards the biomedical or physiological perspective, which states that abnormal behavior is linked to physiological dysfunctions in the brain and body, not ancient theories.