Abnormal psychology or mental disorder is examine about psychological disorder which can be determined by they appearance (symptoms), why they ensue (etiology), how to take care of, and what consequence they have on people’s lives.

Psychological disorder usually ensue infrequently, has unusual act, characterized by misery, and tend to be precarious. It relevance with sets of actions or manner (symptoms) that generate a functional which can be consequence in debasement in people’s lives.

Psychopatology spins around two main points of paradigms for illuminating pschycological disorder, the psychological paradigm and the biological paradigm. The theories which concentrate about humanistic are include on psychological paradigm, meanwhile cognitive and behavioral are reasons and consequences of psychopathology. Whereas, assumptions which reveal more on physical factors, such as genetics and neurochemistry are embrace on the biological paradigm. For instance, hunter-gatherer societies, animists who supposed that people representing unusual act are possessed by wicked spirits.

This thought has been linked with trepanation, which means the rehearsal of cutting a hole into the individual's skull in turn to emit the wicked spirits. Those are several justification by societies about Phsycological disorder.

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