The amount of distortion depends on factors in the individual's history and, possibly, on his genetic heritage. Standards vary from place to place and from time to time. This module addresses the question of normality and introduces the major types of disordered behavior. As you read the text, try to answer the following questions. The definition what behavior is considered abnormal varies from society to society The definition of abnormal behavior is essentially cultural.
Mental illness has no clearly defined state of normality with which it can be contrasted.
This is not the case with mental illness. Mental illness, or behavior disorder, can be contrasted only with our vague and ill-defined notions of normal behav ior. What is considered normal depends to a great extent upon social expectations. Behavior that is considered acceptable and normal in one society or community is considered unacceptable and abnormal in another. In contemporary American society, it is generally acceptable to live in families composed of two parents and their children, to send the children to school rather than to work, and to depend more on the husband than the wife for family income.