As well as tranquillizing, hallucinating and stimulating, the soma of my fable had the power of heightening suggestibility, and so could be used to reinforce the effects of governmental propaganda. Less effectively and at a higher physiological cost, several drugs already in the pharmacopoeia can be used for the same purpose. There is scopolamine, for example, the active principle of henbane and, in large doses, a powerful poison; there are pentothal and sodium amytal. Nicknamed for some odd reason "the truth serum," pentothal has been used by the police of various countries for the purpose of extracting confessions from (or perhaps suggesting confessions to) reluctant criminals. Pentothal and sodium amytal lower the barrier between the conscious and the subconscious mind and are of great value in the treatment of "battle fatigue" by the process known in England as "abreaction therapy," in America as "narcosynthesis." It is said that these drugs are sometimes employed by the Communists, when preparing important prisoners for their public appearance in court.
Meanwhile pharmacology, biochemistry and neurology are on the march, and we can be quite certain that, in the course of the next few years, new and better chemical methods for increasing suggestibility and lowering psychological resistance will be discovered. Like everything else, these discoveries may be used well or badly. They may help the psychiatrist in his battle against mental illness, or they may help the dictator in his battle against freedom. More probably (since science is divinely impartial) they will both enslave and make free, heal and at the same time destroy.
IX.
Subconscious Persuasion
In a footnote appended to the 1919 edition of his book, The Interpretation of Dreams, Sigmund Freud called attention to the work of Dr. Poetzl, an Austrian neurologist, who had recently published a paper describing his experiments with the tachistoscope. (The tachistoscope is an instrument that comes in two forms -- a viewing box, into which the subject looks at an image that is exposed for a small fraction of a second; a magic lantern with a high-speed shutter, capable of projecting an image very briefly upon a screen.) In these experiments Poetzl required the subjects to make a drawing of what they had consciously noted of a picture exposed to their view in a tachistoscope. . . . He then turned his attention to the dreams dreamed by the subjects during the following night and required them once more to make drawings of appropriate portions of these dreams. It was shown unmistakably that those details of the exposed picture which had not been noted by the subject provided material for the construction of the dream."
With various modifications and refinements Poetzl's experiments have been repeated several times, most recently by Dr. Charles Fisher, who has contributed three excellent papers on the subject of dreams and "preconscious perception" to the Journal of the American Psychoanalytic Association. Meanwhile the academic psychologists have not been idle. Confirming Poetzl's findings, their studies have shown that people actually see and hear a great deal more than they consciously know they see and hear, and that what they see and hear without knowing it is recorded by the subconscious mind and may affect their conscious thoughts, feelings and behavior.
Pure science does not remain pure indefinitely. Sooner or later it is apt to turn into applied science and finally into technology. Theory modulates into industrial practice, knowledge becomes power, formulas and laboratory experiments undergo a metamorphosis, and emerge as the H-bomb. In the present case, Poetzl's nice little piece of pure science, and all the other nice little pieces of pure science in the field of preconscious perception, retained their pristine purity for a surprisingly long time. Then, in the early autumn of 1957, exactly forty years after the publication of Poetzl's original paper, it was announced that their purity was a thing of the past; they had been applied, they had entered the realm of technology. The announcement made a considerable stir, and was talked and written about all over the civilized world. And no wonder; for the new technique of "subliminal projection," as it was called, was intimately associated with mass entertainment, and in the life of civilized human beings mass entertainment now plays a part comparable to that played in the Middle Ages by religion. Our epoch has been given many nicknames -- the Age of Anxiety, the Atomic Age, the Space Age. It might, with equally good reason, be called the Age of Television Addiction, the Age of Soap Opera, the Age of the Disk Jockey. In such an age the announcement that Poetzl's pure science had been applied in the form of a technique of subliminal projection could not fail to arouse the most intense interest among the world's mass entertainees. For the new technique was aimed directly at them, and its purpose was to manipulate their minds without their being aware of what was being done to them. By means of specially designed tachistoscopes words or images were to be flashed for a millisecond or less upon the screens of television sets and motion picture theaters during (not before or after) the program. "Drink Coca-Cola" or "Light up a Camel" would be superimposed upon the lovers' embrace, the tears of the broken-hearted mother, and the optic nerves of the viewers would record these secret messages, their subconscious minds would respond to them and in due course they would consciously feel a craving for soda pop and tobacco. And meanwhile other secret messages would be whispered too softly, or squeaked too shrilly, for conscious hearing. Consciously the listener might be paying attention to some phrase as "Darling, I love you"; but subliminally, beneath the threshold of awareness, his incredibly sensitive ears and his subconscious mind would be taking in the latest good news about deodorants and laxatives.
Does this kind of commercial propaganda really work? The evidence produced by the commercial firm that first unveiled a technique for subliminal projection was vague and, from a scientific point of view, very unsatisfactory. Repeated at regular intervals during the showing of a picture in a movie theater, the command to buy more popcorn was said to have resulted in a 50 per cent increase in popcorn sales during the intermission. But a single experiment proves very little. Moreover, this particular experiment was poorly set up. There were no controls and no attempt was made to allow for the many variables that undoubtedly affect the consumption of popcorn by a theater audience. And anyhow was this the most effective way of applying the knowledge accumulated over the years by the scientific investigators of subconscious perception? Was it intrinsically probable that, by merely flashing the name of a product and a command to buy it, you would be able to break down sales resistance and recruit new customers? The answer to both these questions is pretty obviously in the negative. But this does not mean, of course, that the findings of the neurologists and psychologists are without any practical importance. Skilfully applied, Poetzl's nice little piece of pure science might well become a powerful instrument for the manipulation of unsuspecting minds.
For a few suggestive hints let us now turn from the popcorn vendors to those who, with less noise but more imagination and better methods, have been experimenting in the same field. In Britain, where the process of manipulating minds below the level of consciousness is known as "strobonic injection," investigators have stressed the practical importance of creating the right psychological conditions for subconscious persuasion. A suggestion above the threshold of awareness is more likely to take effect when the recipient is in a light hypnotic trance, under the influence of certain drugs, or has been debilitated by illness, starvation, or any kind of physical or emotional stress. But what is true for suggestions above the threshold of consciousness is also true for suggestions beneath that threshold. In a word, the lower the level of a person's psychological resistance, the greater will be the effectiveness of strobonically injected suggestions. The scientific dictator of tomorrow will set up his whispering machines and subliminal projectors in schools and hospitals (children and the sick are highly suggestible), and in all public places where audiences can be given a preliminary softening