The closest analogies to these conditions of our neurotics are furnished by the types of sickness which the war has just now made so frequent--the so-called traumatic neuroses. Even before the war there were such cases after railroad collisions and other frightful occurrences which endangered life. The traumatic neuroses are, fundamentally, not the same as the spontaneous neuroses which we have been analysing and treating; moreover, we have not yet succeeded in bringing them within our hypotheses, and I hope to be able to make clear to you wherein this limitation lies. Yet on one point we may emphasize the existence of a complete agreement between the two forms. The traumatic neuroses show clear indications that they are grounded in a fixation upon the moment of the traumatic disaster. In their dreams these patients regularly live over the traumatic situation; where there are attacks of an hysterical type, which permit of an analysis, we learn that the attack approximates a complete transposition into this situation. It is as if these patients had not yet gotten through with the traumatic situation, as if it were actually before them as a task which was not yet mastered. We take this view of the matter in all seriousness; it shows the way to an _economic_ view of psychic occurrences. For the expression "traumatic" has no other than an economic meaning, and the disturbance permanently attacks the management of available energy. The traumatic experience is one which, in a very short space of time, is able to increase the strength of a given stimulus so enormously that its assimilation, or rather its elaboration, can no longer be effected by normal means.