THE PASSIVE AIR FLOW TECHNIQUE
I ran an ad in a local newspaper: WANTED - someone who stuttered badly
as a child and later outgrew it. I wished to interview people regarding
the technique(s) they had used to overcome their problem; I offered $20
for the privilege. Respondents were screened by phone to eliminate non-stutterers
and, 72 face-to-face interviews were conducted.
The interviews revealed some patients speaking a bit more slowly than
usual, though not remarkably so. On the other hand, I found a significant
number exhibiting tiny airflows in their speech: Using a metal mirror against
the lips to record condensation, I could visually detect a small amount
of air coming from their mouths just before they spoke. It was as if they
preceded each sentence with a tiny, inaudible sigh.
The more I thought about this, the more intrigued I became. What were
these tiny airflows? What function did they serve? I never saw them in
the speech of stutterers, nor in the speech of normal speakers with no
history of stuttering. Why, then, in this group?
I remember sitting in my office mimicking the flows. And then it hit
me. The answer was in the flow. The flow was being used to ensure an opening
of the vocal cords prior to speaking. The flow was passive, never pushed,
and its sigh-like quality appeared to keep the cords apart and relaxed.
I could now explain the bizarre behavior of a patient whom I had seen
earlier who stated that he never stuttered when he smoked. When I asked
him to demonstrate, he lit a cigarette, inhaled, let out some of the smoke,
and began to speak. The stuttering disappeared.
When I asked him why he thought it helped, he said it relaxed him. I
passed it off as a form of psychological distraction. Little did I suspect
at that time that the answer to the problem was to be seen in the smoke
being blown past my face.
Later, through my reading, I was to discover that the vocal cords are
controlled by the breathing centers of the brain. During normal, quiet
respiration they open slightly just before inhalation, then close slightly
as the air flow is reversed and exhalation begins.
The opening of the vocal cords has been shown to be an active process,
the result of the contraction of a single pair of muscles located at the
rear of the voice box. The exhalation phase, on the other hand, is passive,
the inward movement of the vocal cords occurring as the muscles relax.
Research has shown that the most relaxed state of the vocal cords occurs
during this expiratory phase of normal, quiet respiration.
In other research, electrodes have been placed on the vocal cords to
study the tension patterns associated with speech. The tensions in the
vocal cords before speech have also been studied. The research shows that
the average person starts to tense his vocal cords between one-third and
one-half second before he speaks.
This fraction of a second before speech begins appears to be critical
because it is the time during which the vocal cords can and often do lock.
I had observed this earlier in my ultrasonic scans of the vocal cords in
stutterers. I reasoned that if I could reduce these pre-speech vocal cord
tensions I would stand an excellent chance of keeping the cords from locking
and thus stop stuttering.
The trick, then, was to somehow learn to exhale just before speaking
as if one were not going to speak at all but were simply quietly breathing.
The brain had to be fooled into believing that the speaker was simply taking
another breath. If the brain were fooled, it would develop no pre-speech
tensions on the cords.
I began to experiment with an airflow technique. I started by asking
a stutterer to produce a long, audible, relaxed sigh. I then asked him
to sigh once again, and when halfway through, say a one-syllable word.
The stuttering stopped. I increased the number of one-syllable words spoken
on a breath. Again, no stuttering.
I was amazed. It seemed so simple. But day after day my results were
confirmed - the patient's speech continued to be fluent. My spirits began
to rise. I kept wondering how long before the inevitable relapse, but it
did not occur, and I decided to proceed to the next step. I asked the patient
to make the flows inaudible. He did this immediately, saying he had practiced
this at home since he did not care to go about sounding "like a breathy
pervert." His speech was now totally acceptable, and he remained fluent.
Here, I thought, was a treatment that represented the essence of simplicity.
It focused specifically upon what I had theorized to be the cause of stuttering.
The passive airflow kept the vocal cords apart and relaxed prior to speech
and deprived the brain of the signals necessary to trigger the stutter
But for other patients, the immediacy of the result belied a subsequent
period of difficulty. Although they used the airflow continuously, the
still stuttered at times. What was wrong?
I recorded examples of these stutter occurrences from a number of patients,
I was able to uncover four characteristic mistakes which seemed to provoke
the reappearance of stuttering. I called them misuses of air flow, and
all patients were subsequently given instructions to alert them to these
mistakes so they might avoid them at all times.
1. Pushing the Flow. Under conditions of stress, patients tended to
push or force the flow, which frequently led to a locking of the vocal
cords and a subsequent stutter. They were reminded that the flow had to
be absolutely passive, that a pushed flow would sooner or later be interpreted
by the brain as an "h", and that the brain would then "think" that all
sentences began with an "h" and the stuttering would reappear.
2. A Failure of Transition. Another source of difficulty was the lack
of a smooth flow into the first sound of the first word. The flow appeared
short, with a pause between the end of the flow and the beginning of speech.
It appeared as if the patient were catching his breath - as if, perhaps
to initiate an inhalation. The pause provided the time necessary for the
cords to lock. I told patients, "The air flow is your life-line to fluency,
follow it directly into the word."
3. A Failure of Intent. Patients are often so preoccupied with the upcoming
first sound that their mouths are seen to form the position for that sound
during the final minutes of air flow. Thus the air flow is affected by
the anticipated sound, and one of the effects of such anticipation is always
a tensing of the vocal cords - which often leads to a stutter. Patients
are reminded that the object of the air flow is to fool the brain that
they are just simply taking another breath. If they start to form the first
sound of the first word, the brain is not fooled.
4. Holding the Flow. Patients, in an effort to time their flows, often
inhale and hold the air by closing their vocal cords, then start the air
flow at the appropriate time by releasing their cords. If they attempt
to do this under stress, the hold is often transformed into a lock and
Patients were instructed never to hold the flow but to keep the air
in continuous movement, that is, to inhale smoothly and then just as smoothly
reverse the flow and exhale; there was never to be a stoppage of the flow
at any point.
With these cautions in mind my patients were now responding well. The
Air Flow Technique, when practiced properly, brought substantial improvement.
But occasionally stuttering blocks still occurred. Despite the use of seemingly
perfect air flows, some patients continued to experience difficulty.
Reexamining these patients I would, for example, hear a young man use
perfect air flow into a "t" and then stutter. I tape-recorded a number
of instances of these unexplainable blocks and played them over and over.
I was listening to them at home one evening, wondering if I would ever
find a solution, when my wife entered the room commenting, "You know, those
people speak awfully fast." And then I realized the obvious fact - they
were speed-stressing themselves. If a patient was afraid of a sound, even
though he used perfect airflow, he would most certainly rush through the
word which contained the sound. As a result of this rushed word, the brain
would tense the vocal cord muscles, anticipating rapid speech to follow.
It's much the same as when a sprinter tenses his leg muscles a split second
before starting a hundred yard dash. But while tensed leg muscles in a
sprinter give him a clear advantage, tensed vocal cord muscles in a stutterer
obstruct his air flow and result in a stutter.
In a sense, then, getting set to speak should be the same as getting
ready to run a twenty-six mile marathon. The marathoner doesn't need the
high initial acceleration of a sprinter, and if we measure the tension
in his leg muscles a split second before the race, we find considerably
less of it.
If our goal with stutterers is to subtract as much tension as possible
from the cords prior to the start of speech, a slow start is critical.
Indeed, when I forced patients to say the first word slowly, the stuttering
We have found the combination of the passive air flow and the slowed
first word to constitute a powerful defense against stuttering, and it
is what I have come to call "perfect technique." With "perfect technique"
it is impossible to stutter. I began to inform patients of this very important
fact. I arranged multiple-stress speaking situations so that each could
see firsthand that this dictum was inevitably true. Patients invariable
felt much less anxiety and stress, and the effect of their successful performance
was powerful and obvious. Here, for the first time, was a clear-cut prescription
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