attention in a small article. I believe, moreover, that Peyer's[1] reflex diarrhea which he attributes to a disease of the prostate is nothing other than the diarrhea of anxiety neurosis. The deceptive reflex relation is due to the fact that the same factors which are active in the origin of such prostatic affections also come into play in the etiology of anxiety neurosis.
The behavior of the gastro-intestinal function in anxiety neurosis shows a sharp contrast to the influence of this same function in neurasthenia. Mixed cases often show the familiar "fluctuations between diarrhea and constipation." The desire to urinate in anxiety neurosis is analogous to the diarrhea.
9. The paresthesias which accompany the attack of vertigo or anxiety are interesting because they associate themselves into a firm sequence, similar to the sensations of the hysterical aura. But in contrast to the hysterical aura I find these associated sensations atypical and changeable. Another similarity to hysteria is shown by the fact that in anxiety neurosis a kind of conversion[2] into bodily sensations, as, for example, into rheumatic muscles, takes place which otherwise can be overlooked at one's pleasure. A large number of so called rheumatics, who are moreover demonstrable as such, really suffer from an anxiety neurosis. Besides this aggravation of the sensation of pain I have observed in a numiber of cases of anxiety neurosis a tendency towards hallucinations which could not be explained as hysterical.
10. Many of the so called symptoms which accompany or substitute the attack of anxiety also appear in a chronic manner. They are then still less discernible, for the anxious feeling accompanying them appears more indistinct than in the attack of anxiety. This especially holds true for the diarrhea, vertigo, and paresthesias. Just as the attack of vertigo can be substituted by an attack of syncope, so can the chronic vertigo be substituted by the continuous feeling of feebleness, lassitude, etc.
II. The Occurrence and Etiology of Anxiety Neurosis.
In some cases of anxiety neurosis no etiology can readily be ascertained. It is noteworthy that in such cases it is seldom difficult to demonstrate a marked hereditary taint.
