Kurt Koffka's excerpt from “Perception: An Introduction to Gestalt-Theorie” was an attempt in 1922 to introduce the then new and now German school of thought into psychology , Gestalt-Theorie, in America. Gestalt theory has its roots in the field of perception, and Koffka aimed to demonstrate how much more effective his theory had proven to be. Perception according to this school of thought denies any theoretical meaning, the concept suggests nothing that is brought forth through imagination or through mere thought brings a concrete definition. Explores three psychological principles: sensation, association and attention. And it highlights a key feature of how their theory introduces a statistical method for predicting the infinite amount of associations that can be made. Furthermore, attention according to Gestalt theory is ambiguous. In essence, the theory explains how these three principles are not sufficient to explain the large amount of mental abilities. Koffka supports Wertheimer's phi phenomenon and encourages American psychology to abandon its own perception, if you will...