With special thanks to the Dune Encyclopedia, here is a fun theory:
The scientific/technical term for "persuasion" is "psychocoercion by extraperceptual auditory stimuli." It is the production of extraperceptual auditory stimuli capable of implanting a message in an individual's unconscious, which creates a compulsion to obey.
The production of extraperceptual auditory stimuli involves manipulation of the laryngeal musculature in a manner that generates overtones well above the 20,000 cycles per second (cps) limit for conscious reception. Eden McCain instinctively knew how to control the thyro-arytenoid, vocalis, and cricothyroid muscles so as to intentionally regulate vocal quality in a manner that generated specific frequencies within the 25,000-35,000 cps range. Normal phonation, caused by tension of the vocal folds to effect condensations and rarefactions of the airstream, operates within a range of 500 to 4,000 cps, with random and only partially controlled overtones up to 10,000 cps.
It is the combinations of overtones along with the resonating characteristics of the pharyngeal, nasal, and oral cavities that amplify specific frequencies that account in large measure for the vocal quality that makes each individual's voice somewhat unique. For instance, the trained singing voice owes its richness to overtones of more than ordinary amplitude. Eden's manipulation of this ability required generating these overtones without altering the basic pitch or loudness of her perceived voice. Each individual word or phoneme required a unique combination of perceived tones and extraperceptual frequencies. This perceptual/extraperceptual ratio (specific combination of perceptual and extraperceptual frequencies) must vary according to the position of a phoneme within a word, be it initial, medial or terminal.
Extraperceptual stimuli trigger so-called "uncommitted zones" of the auditory cortex and extraperceptual auditory stimuli impinge on the nervous system by exciting portions of the auditory cortex, which feeds information only to the individual's unconscious. Segments of the auditory cortex are actually merely unused, as opposed to being uncommitted. Those zones are actually committed but the information stored there is unavailable to the conscious mind. The psychocoercion messages, therefore, go directly to the unconscious, are not subject to scrutiny by the conscious will of the receiver and compliance requires no voluntary decision.
The scientific/technical term for "persuasion" is "psychocoercion by extraperceptual auditory stimuli." It is the production of extraperceptual auditory stimuli capable of implanting a message in an individual's unconscious, which creates a compulsion to obey.
The production of extraperceptual auditory stimuli involves manipulation of the laryngeal musculature in a manner that generates overtones well above the 20,000 cycles per second (cps) limit for conscious reception. Eden McCain instinctively knew how to control the thyro-arytenoid, vocalis, and cricothyroid muscles so as to intentionally regulate vocal quality in a manner that generated specific frequencies within the 25,000-35,000 cps range. Normal phonation, caused by tension of the vocal folds to effect condensations and rarefactions of the airstream, operates within a range of 500 to 4,000 cps, with random and only partially controlled overtones up to 10,000 cps.
It is the combinations of overtones along with the resonating characteristics of the pharyngeal, nasal, and oral cavities that amplify specific frequencies that account in large measure for the vocal quality that makes each individual's voice somewhat unique. For instance, the trained singing voice owes its richness to overtones of more than ordinary amplitude. Eden's manipulation of this ability required generating these overtones without altering the basic pitch or loudness of her perceived voice. Each individual word or phoneme required a unique combination of perceived tones and extraperceptual frequencies. This perceptual/extraperceptual ratio (specific combination of perceptual and extraperceptual frequencies) must vary according to the position of a phoneme within a word, be it initial, medial or terminal.
Extraperceptual stimuli trigger so-called "uncommitted zones" of the auditory cortex and extraperceptual auditory stimuli impinge on the nervous system by exciting portions of the auditory cortex, which feeds information only to the individual's unconscious. Segments of the auditory cortex are actually merely unused, as opposed to being uncommitted. Those zones are actually committed but the information stored there is unavailable to the conscious mind. The psychocoercion messages, therefore, go directly to the unconscious, are not subject to scrutiny by the conscious will of the receiver and compliance requires no voluntary decision.
