Almost every stammerer seeks for an explanation of these peculiar manifestations. Why is it, for instance, that a stammerer can sing without difficulty, although he cannot talk? This is one of the best evidences that could be produced to show that stammering is the result of a lack of mental control. The stammerer who can sing without difficulty has no organic or inherent defect in the vocal organs, that is sure. If the stammerer can sing, and if this proves that he has no organic defect, then it follows logically that the cause of his trouble is mental and not physical.
TALK WHEN ALONE: The fact that a stammerer can talk without hesitation when alone and that he can talk to animals may be explained by a very simple illustration—any stammerer can try this experiment on one of his friends who does not stammer. He can prove that the reflex, or what might be termed subconscious movements of the bodily organs are more nearly normal than the same movements consciously controlled. Take, for instance, the regular beating of the pulse. Let anyone who does not stammer (it makes no difference in trying this experiment whether the person stammers or not, save that we are trying to prove that the condition may be brought about in one who is not a stammerer) feel his own pulse for sixty seconds. Let him be thoroughly conscious of this effort to learn the rapidity of its beating. If a disinterested observer could record the pulse as normally beating and the pulse under the conscious influence of the mind, it would be found that the pulse under the conscious effort is beating either more rapidly or more slowly or that it is not beating as regularly as in the case of unconscious or reflex action.
This same condition may be noticed in another unconscious or reflex action—breathing. The moment you become conscious of an attempt to breathe regularly, breathing becomes difficult, restricted, irregular, whereas this same action, when unconscious, is thoroughly regular and even.
In the average or normal person who has learned to talk correctly, speaking should be practically an unconscious process. It should not be necessary to make a conscious effort to form words, nor should a normal individual be conscious of the energy necessary to create a word or the muscular movements necessary to its formation and expression.
This will explain why the stutterer or stammerer can talk without difficulty to animals or when alone—there is no self-consciousness—no conscious effort—no thinking of what is being done.
Another of the peculiarities of stammering is that the stammerer in many cases seems to be able to talk perfectly in concert. This has long baffled the investigator in this field, no reason being assignable for this ability to talk in connection with others. The baffling element has been this—that the investigator has assumed that the stammerer talked well in concert, whereas a very careful scientist would have discovered the stammerer to be a fraction of a second or a part of a syllable behind the others.
You have doubtless been in church at some time when you were not entirely familiar with the hymn being sung, yet by lagging a note or two behind the rest, you could sing the song, to all appearances being right along with the others.
When you talk over the long-distance telephone, the voice seems instantly to reach the party at the other end of the line, yet we know that a period of time has had to elapse to allow the voice waves to move along the telephone wire and reach the other end. The elapse of time has been too slight to be noted by the average human mind and the transmission seems instantaneous. This is what happens in the case of the stammerer who seems able to talk in concert—he is merely a syllable or part of a syllable behind the rest, all the while giving the impression nevertheless, that he is talking just as they are.
There are many other individual peculiarities which can be described by almost every stammerer. These different peculiarities are more numerous than the cases of stammering and it would be useless to attempt to discuss them in detail. I will take up only two as being typical of dozens which have come under my observation in twenty-eight years' experience.
One stammerer explains his difficulty as follows: "I find I am unable to talk and do something else at the same time. For instance, I have difficulty in talking while dancing, while at the table or while listening to music. If, for instance, I wish to talk to any one while the Victrola is being played, I unconsciously cut it off." This is a case where the stammerer finds that all of his faculties must be concentrated upon a supreme effort to speak before this becomes possible. In other words, he has not yet learned to control sufficiently the different parts of his body so that they may act independently. This might be termed a lack of independent co-ordination.