determinism, the events in the mind are not random and haphazard unrelated phenomena. The thoughts and feelings of an individual, unconsciously and consciously, are determined by earlier experiences in the life of the indicidual. Throught methods of investigation, the connection betweeen current mental experience and past events can be established.

topographic viewpoint, every mental element is judged according to its accessibility to consciousness. The process of repression represents a persistent, repetitive effort on the part of the mind to keep certain thoughts out of awareness or consciousness.

dynamic, the mind is stimulated to act through the sexual and aggressive impulses that are part of the human biological endowment. These drives show a stereotyped response, usually self-preservation, which is evoked by a specific stimuli.

genetic, adult conflicts and characters traits can be traced back to crucial events, wishes and fantasies of childhoos. It shows the impact of childhood on us, and the numerous ways the individual never gets over his childhood.