Abstract
In psychology it is common to use the term "crisis" when describing human behavior in any extreme situation. The term "crisis", however, is not infrequently used in such a way as "identity crisis" or "growth crisis". It is noted from this that the conception of "crisis" does not always apply to sudden critical situations in which body and mind suffer acute danger or suspense. It is, therefore, advisable to avoid the confusion of the concept by using the phrase "extreme situation" as distinguished from "crisis" in the studies of these fields. Various studies have been made so far about extreme situations studies on disaster psychology, prisoners' psychology and other special studies as well as experimental basic studies. All these studies aim at understanding human behavior in extreme situations, but they are not yet fully interrelated to one another. We would like to propose that, in future, we should make efforts toward systematizing all these studies into one synthesis under the denotation of "Extremity Psychology".
