Émile Coué (1857–1926) was a significant pioneer in the development of an understanding of the application of therapeutic suggestion;3 and, according to Cheek and LeCron, most of our current knowledge of suggestion "stems from Coué" (1968, p. 60). With the intention of "saturating the cognitive microenvironment of the mind", Coué's therapeutic method approach was based on four non-controversial principles:
Charles Baudouin's "laws of suggestion" are:5
Modern scientific study of hypnosis, which follows the pattern of Hull's work, separates two essential factors: "trance" and suggestion.6 The state of mind induced by "trance" is said to come about via the process of a hypnotic induction—essentially instructing and suggesting to the subject that they will enter a hypnotic state. Once a subject enters hypnosis, the hypnotist gives suggestions that can produce sought effects. Commonly used suggestions on measures of "suggestibility" or "susceptibility" (or for those with a different theoretical orientation, "hypnotic talent") include suggestions that one's arm is getting lighter and floating up in the air, or that a fly is buzzing around one's head. The "classic" response to an accepted suggestion that one's arm is beginning to float in the air is that the subject perceives the intended effect as happening involuntarily.7
Consistent with the views of Pierre Janet—who noted (1920, pp.284–285) that the critical feature is not the making of a 'suggestion', but, instead, is the taking of the 'suggestion'—Weitzenhoffer (2000, passim), argued that scientific hypnotism centres on the delivery of "suggestions" to hypnotized subjects; and, according to Yeates (2016b, p.35), these suggestions are delivered with the intention of eliciting:
Furthermore, according to Yeates (2016b, pp.35–36), 'suggestions' have four temporal dimensions:
Suggestions, however, can also have an effect in the absence of a hypnosis. These so-called "waking suggestions" are given in precisely the same way as "hypnotic suggestions" (i.e., suggestions given within hypnosis) and can produce strong changes in perceptual experience. Experiments on suggestion, in the absence of hypnosis, were conducted by early researchers such as Hull (1933).9 More recently, researchers such as Nicholas Spanos and Irving Kirsch have conducted experiments investigating such non-hypnotic-suggestibility and found a strong correlation between people's responses to suggestion both in- and outside hypnosis.10
In addition to the kinds of suggestion typically delivered by researchers interested in hypnosis there are other forms of suggestibility, though not all are considered interrelated. These include: primary and secondary suggestibility (older terms for non-hypnotic and hypnotic suggestibility respectively), hypnotic suggestibility (i.e., the response to suggestion measured within hypnosis), and interrogative suggestibility (yielding to interrogative questions, and shifting responses when interrogative pressure is applied: see Gudjonsson suggestibility scale. Metaphors and imagery can also be used to deliver suggestion.
Kandel ER, 2005 Psychiatry, Psychoanalysis, and the New Biology of Mind, New York: American Psychiatric Publishing, ISBN 978-1-585-62199-6. ↩
Carpenter, W.B., "On the Influence of Suggestion in Modifying and directing Muscular Movement, independently of Volition", Royal Institution of Great Britain, (Proceedings), 1852, (12 March 1852), pp. 147–153. http://www.sgipt.org/medppp/psymot/carp1852.htm ↩
See Yeates, 2016a, 2016b, and 2016c. ↩
Yeates (2016b), p.48. ↩
Suggestion and Autosuggestion, Baudouin, c. 1920: 117. ↩
Heap, M. (1996). "The nature of hypnosis." The Psychologist. 9 (11): 498–501. ↩
Wetizenhoffer, A. M. (1980). "Hypnotic susceptibility revisited." American Journal of Clinical Hypnosis. (3):130-46. PMID 7386402 /wiki/PMID_(identifier) ↩
Yeates notes (p.36) that "there is a strong tradition that these suggestions are the most efficacious". ↩
Hull, C. L. (1933/2002). "Hypnosis and suggestibility: an experimental approach." Crown House Publishing. ↩
Kirsch, I., Braffman, W. (2001). "Imaginative suggestibility and hypnotizability." Current Directions in Psychological Science. 4 (2): 57–61. ↩