contractions of the facial muscles.

UNCONSCIOUS STUTTERING: This is a misnomer because there can be no
such thing as unconscious stuttering. It appears that the person
afflicted is not conscious of his difficulty for he insists that
he does not s-s-s-s-tut-tut-tut-ter. Unconscious Stuttering is but
a name for the disorder of a stutterer who is too stubborn to
admit his own difficulty.

THOUGHT STUTTERING: This is an advanced form of stuttering which
is also known as Aphasia and which is caused by the inability of
the sufferer to recall the mental images necessary to the
formation of a word. Stuttering in its simpler forms is usually
connected with the period of childhood, while aphasia is often
connected with old age or injury. The aphasic person is
excessively nervous as is the stutterer; he undergoes the same
anxiety to get his words out and the same fear of being
ridiculous. In aphasia there is, however, no excessive muscular
tension or cramp of the speech muscles. In these cases, the
stutterer will sometimes repeat the first syllable ten or fifteen
times with pauses between, being for a time unable to recall what
the second syllable is. It is, in other words, a habitual, but
nevertheless temporary, inability to recall to mind the mental
images necessary to produce the word or syllable desired to be
spoken. This condition is more commonly known as Thought Lapse or
the inability to think of what you desire to say.

One investigator shows that the diagnosis of "insanity" with later
commitment to an asylum occurred in the case of a bad stutterer.
When excited he would go through the most extreme contortions and