In the most pronounced stupor we have evidently a more or less complete standstill in thinking processes. Practically no impressions are registered and consequently nothing is remembered except events that occurred in some short periods when some affective stimulus, or a brief burst of elation, lifts the patient temporarily out of the deep stupor. It is impossible to say whether the statement of a complete standstill has to be qualified. In some stupors repeated environmental stimuli sometimes make at least a vague impression, so that while spontaneous recollection is impossible a feeling of familiarity is present when the patient is again confronted with this environment. This might be an exception to the dictum of complete mental vacuity, or it may be that there are somewhat less pronounced stupor reactions. When more is perceived, there is often a retrospective statement of having felt mixed up, being unable to take in things, or, directly under observation, the patient may say, “I cannot realize where I am,” “I cannot take in my surroundings.” In harmony with this is the fact that questions often produce a certain bewilderment. In quite pronounced states in which some replies can still be obtained, we find that the intellectual processes may be interfered with to the extent of a paragraphia, i.e., a remarkably mixed-up writing in which perseveration (one form of following the path of least resistance) plays a prominent part. This same principle is also seen in such reactions as the repetition of the question or the senseless repetition of a former answer. These phenomena remind us of what we see in epileptic confusions, in epileptic deterioration and in arteriosclerotic dementia.