Normal or abnormal vibrations

As we have just seen, different abnormal states of the brain produce different sensations, which can be detected through hand contact. To make this more clear, let's look at the most typical kinds of vibrations we are likely to encounter - this will make it easier for those who wish to try the experiment themselves.

First, let's look at the vibrations produced by a normal brain.

In these cases, you will perceive a kind of pulsing, which varies in speed, depending on the state of the brain, from between 5 and 100 beats per minute.

The slower the vibration, the calmer the brain; the faster the vibration, the more animated the brain is. There are also differences in amplitude and strength. Also, as soon as willpower comes into play, it is easy to detect an immediate increase in vibratory speed and/or amplitude.

Despite these variations, all normal vibrations are fairly rhythmic and regular; this is what differentiates them from abnormal vibrations, which are always irregular.

If you examine a neurasthenic's brain, even during periods when s/he feels perfectly normal, you will never detect very regular vibrations.

They may appear to be normal at first, since you can perceive a few rhythmic beats, but suddenly they change, and you feel a series of disorganized beats, after which they become regular for awhile, only to change again a little later on. If you question the patient, s/he may tell you that the change was due to a thought or a distraction, or s/he may not have been conscious of the change at all. The examining physician can conclude with certainty that the change was due to an interruption of cerebral control.

As soon as patients become obsessed with an idea, or simply overexcited, the pulse becomes very rapid - too fast to count. You may also perceive a violent pulse, followed by a series of very rapid, fluttering vibrations, which are hardly perceptible; in addition, rarely do subsequent series of vibrations exhibit the same amplitude or intensity.

The state of anxiety is simply an increase in patients' already overexcited cerebral activity; beats are even more intense and more disorganized, and create a feeling of terror or panic.

The state of tension mentioned earlier represents a fourth form of abnormality, presenting the same irregularities as those described above.

These various modalities constitute the major forms of the state of cerebral non-control; as soon as they are detected, a physician may proceed with the training program we referred to earlier on.

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