A number of conditions develop in nervous individuals that resemble stuttering. There are disturbances of swallowing, disturbances of walking (astasia abasia), neurotic disturbances of writing, and of other uses of the hands and of the legs.
State of Mind.—It is perfectly clear to anyone who has closely observed the ways of stutterers that the state of mind is extremely important in these cases and indeed probably constitutes the underlying factor in the speech disturbance. Stuttering and all speech defects are much worse when the patient is laboring under excitement. This is so amusingly true that the impotence of a stutterer to say a word when he wants very much to say it is a commonplace in the cheap drama and never fails to raise a laugh. In ordinary conversation with friends the stutterer may have little difficulty. As soon, however, as he begins to talk with those with whom he is unfamiliar his speech defect becomes noticeable. When the others present are entire strangers and, above all, strangers whom he wishes to impress favorably, then his stuttering becomes pronounced. The mental element is the most important factor. Just as soon as consciousness of the task supervenes his power of co-ordination fails and stuttering begins.
Stuttering in Complex Activities.—There are many actions that become habitual and people are thus saved from the necessity of constantly performing them under the control of the will and the consciousness. Walking is a typical illustration of this and is seldom disturbed by consciousness, but there may be a stuttering in the gait of sensitive persons if they become overconscious when passing people who are watching them. Talking is even a more striking example of elaborate co-ordination without conscious effort. We have to bring into play more than a score of muscles whose movements are nicely and accurately co-ordinated, or else the effort at articulate speech is a failure. We have to change the positions of most of these muscles many times every minute, yet we do it without a thought of how it is done and most of us accomplish it with ease and perfection.
Stuttering Walk.—Stuttering, after all, comes most naturally under the head of dreads in the classification of the psychoses. Stuttering is not a physical difficulty so much as a nervous apprehension, and there may be a stuttering in any co-ordination as in speech. I have a patient under observation who, if people are looking at her, finds so much difficulty in walking because of a trembling that comes over her that she fears she may not be able to keep from falling. Boys at school whistle a certain air that requires a little halt in the gait to keep time with it, as their schoolgirl friends go by, and it is impossible for these not to drop into the peculiar gait indicated by the time of the tune.
Stuttering Writing.—There are many men who become so nervous about writing their signatures that they cannot sign while anyone is present. There are others whose penmanship becomes very irregular, or at least exhibits many signs of nervousness, whenever they think someone is watching them. Most of [{572}] the difficulties seen in speech may, indeed, be exhibited in writing. The same difficulty in beginning, the same elision of letters under stress of excitement, may occur.
Writer's cramp is, after all, much more of the nature of a stuttering in writing than a real cramp. Over-action, added motions, and, finally, incomplete power to act as desired are seen in both cases. It might be expected that this would not affect so simple and familiar a set of motions as those required for a personal signature, but it does, as many cases illustrate. A typical example was the treasurer of a large trust company who had to sign a number of bonds, some thirty thousand. At the rate of 200 an hour, over three a minute, as he did the first day with others making it easy for him, it looked as though he could complete the task, huge as it was, in a month. At the end of a week, however, the rate had fallen to 120 an hour and, toward the end of the second week, one a minute on the average was all that could be accomplished. At the end of the month his signature, while retaining certain of its original characteristics, had become very different from what it was at the beginning and signing had become an extremely difficult matter. He had to take a rest from business for several weeks after accomplishing this apparently mechanical procedure.
Emotional Ataxia.—Dr. S. Weir Mitchell in his article on "Motor Ataxia from Emotion" in the May number (1910) of The Journal of Nervous and Mental Disease, discusses some cases in which inability to write even a signature came as a consequence of nervousness and emotional disturbance.
In one of Dr. Mitchell's patients, other manifestations of ataxia occurred as the result of the consciousness that people were watching the patient. At times he is compelled to leave a dinner table, since with strangers it is almost impossible for him to eat. If there are two or three at the table with him, however, and especially if he is worried about himself, he may become almost helpless, requiring both hands to get a cup of coffee or a glass of water to his mouth. A patient of mine with like symptoms has described to me equivalents of various kinds to his own difficulties in his sisters. One of them cannot play the piano before strangers, though an excellent musician. The other cannot crochet with any success if any but intimate friends are present. How much of this family trait is due to suggestion or psychic contagion would be hard to say. The state that comes over amateur actors and which makes them forget their lines, stammer in their speech, walk awkwardly, and trip easily, are really manifestations of this same incapacity to control even familiar sets of actions when there is great self-consciousness and over-attention.
Mental Influence.—The correction of these conditions comes through soothing the mind of the patient and getting him or her not to be so self-conscious as to disturb action by thought about it. It is easy to say this and extremely difficult to do it. In certain nervous organizations it is quite impossible to overcome the tendency to this ataxia or inco-ordination of voluntary movements. Much can be accomplished, however, by proper training and discipline in all cases, and, while the patient can never be completely cured, great improvement may be brought about by patient habituation under favorable circumstances. In Dr. Mitchell's cases the taking of a glass of whiskey or of wine sometimes stimulated the patient so that co-ordination became possible where it was impossible before. In nearly all cases of writer's cramp [{573}] and writing difficulties the power to write is restored for a time by such stimulation. Strong coffee will sometimes serve the purpose as well as alcohol. It is easy to understand, however, how dangerous is the resort to such stimulation.
Practice in Self-Control.—The excitement and nervousness incident to appearance before an audience which make thought and speech so difficult and action so awkward and so exaggerated gradually disappear as the individual becomes habituated to appearing in public. In most people there is never a complete loss of self-consciousness with entire freedom from nervousness, but the conditions are much improved so that there is no noticeable interference with ordinary actions and speech. Whenever there is some reason for additional excitement, however, as when a new play is being put on, or when some special audience is being entertained, there is a reappearance of many of the old symptoms due to a self-consciousness.