ABSTRACT
The depression can convey a vast spectrum of mood states from a blue Monday, which no life escapes, to a major depressive episode, otherwise called an affective disorder. There are three states of depression delineated for purposes of studying depression in the later years. The first state is an uncomplicated grief reaction, which is often called reactive depression, and is the normal reaction to a loss. The second depressive state is called a dysthymic disorder which was formerly known as neurotic depression. The disorder often begins without clear onset and may take a chronic course. The third depressive state is called major depressive episode, previously known as psychotic depression. There are an a few theoretical models of depression and their application to practice. In discussing psychodynamic and cognitive theories, one observes that they are by no means mutually exclusive. There are three models in psychodynamic theory, namely, Freud's Model, Butler's Model and, Bibring's Model for the treatment of depression.
