Is hypnotic suggestibility a stable trait?

Fassler, Oliver; Lynn, Steven Jay; Knox, Joshua

doi:10.1016/j.concog.2007.05.004

Cited by 35 publications

(34 citation statements)

References 23 publications

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“…This limit, however, is relative, and previous positive studies on hypnosis were also studied in specific populations. Thirdly and as previously described, [19,20] there is a wide range of suggestibility in the general population. Our data support this finding because 21% of our patients were considered nonreceptive by the caregiver in charge of the hypnotic session.…”

Section: Discussionsupporting

confidence: 54%

Impact of a preoperative conversational hypnotic session on propofol consumption using closed-loop anesthetic induction guided by the bispectral index

et al. 2017

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Objective:The automated administration of propofol in a closed loop could be used to objectively evaluate the nonpharmacological anesthetic action of hypnotherapy. The objective of this study was to evaluate the impact of a conversational hypnosis session on the consumption of propofol for anesthetic induction.Design:A randomized, usual care-controlled, single-center, patient-blind trial.Setting:Tertiary care center in France from November 2012 to December 2013.Participants:Adult patients scheduled for a surgical procedure under general anesthesia.Interventions:Before surgery, patients were randomized with a computer-generated random list for a preoperative conversational hypnosis session or for usual care. The conversational hypnosis session was conducted and individualized by the therapist with an academic degree in hypnosis in a quiet environment. Anesthetic induction was automatically performed by propofol without opioids and was assisted by the bispectral index in a closed loop.Outcome:Primary endpoint was the propofol dose required for anesthesia induction, defined as a Bispectral index less than 60 for at least 30 seconds.Results:The study included 48 patients in the hypnosis group and 49 patients in the control group. No difference in propofol consumption to obtain anesthesia induction was observed between the groups (total dose: 138.6 [67.5] and 130 [47.9] mg, P = .47; adjusted dose: 2.15 [1.09] and 1.95 [0.66] mg/kg, P = .28, for the hypnosis and control groups, respectively). Hetero-evaluation of arm movement during propofol injection (no reaction: 98% and 74%; P = .004, in the hypnosis and control groups, respectively) and face reaction at venous access placement (no reaction 59% and 30%; P = .017, in the hypnosis and control groups, respectively) were lower in the hypnosis group. No adverse event was reported.Conclusions:No difference in propofol consumption was observed in this study designed to evaluate the effect of a hypnotic conversational session on anesthesia induction using an automated tool for propofol administration.

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Section: Discussionsupporting

confidence: 54%

Impact of a preoperative conversational hypnotic session on propofol consumption using closed-loop anesthetic induction guided by the bispectral index

et al. 2017

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“…In our case, the short delay was a minimum of 5 months and we found no indication of substantial differences between the short and long delay groups among the SWASH subscales. For instance, Fassler et al (2008) found a difference of 0.77 on the objective scores between the first and second session 2 , but according to our data, the largest plausible difference is only .34. Nonetheless, the effect of boredom on the subjective scores observed by Fassler et al (2018) was 1.05 3 , which is compatible with our results as the lower bound of the difference in that aspect was 1.12.…”

Section: Discussioncontrasting

confidence: 46%

“…In order to adapt the hypnosis screening procedure online, one needs to ensure that the non "live" version can induce similar objective and subjective hypnotic responses as with a "live" hypnotist. Indeed, suggestibility scores of participants are comparable when the hypnotic induction and suggestions are delivered by a pre-recorded audiotape and when they are delivered by an experimenter (Barber & Calverley, 1964;Fassler, Lynn, & Knox, 2008;Lush, Scott, Moga, & Dienes, 2018). These findings underpin the idea that the participants could easily undergo a hypnosis screening procedure in their own rooms by listening to a pre-recorded script and filling out the booklets online.…”

mentioning

confidence: 74%

“…These values are also appropriate in relative terms. For instance, Fassler et al (2008) employed the CURSS which has an objective and a subjective subscale such as the SWASH, in two occasions and the test re-test correlations were .59 and .77 for the objective and subjective components, respectively. These results are in line with the correlations found by us in the online group.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, we are interested in the extent to which the length of the delay between first and second screen can influence the reliability and the scores of hypnotic suggestibility. The question about the stability of hypnotic suggestibility over periods of few days or even decades have inspired various research projects (e.g., Fassler, Lynn, & Knox, 2008;Lynn, Weekes, Matyi, & Neufeld, 1988;Piccione, Hilgard, & Zimbardo, 1989). To assess the stability of hypnotic suggestibility, we recruited half of the sample from the subject pool of the year of 2016 and the other half from the year of 2017, both of whom have already received offline screening.…”

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confidence: 99%

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Can hypnotic suggestibility be measured online?

Pálfi¹,

Lush²,

Scott³

et al. 2018

Preprint

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Hypnosis and hypnotic suggestions are gradually gaining popularity within the consciousness community as established tools for the experimental manipulation of illusions of involuntariness, hallucinations and delusions. However, hypnosis is still far from being a widespread instrument; a crucial hindrance to taking it up is the amount of time needed to invest in identifying people high and low in responsiveness to suggestion. In this study, we introduced an online assessment of hypnotic response and estimated the extent to which the scores and psychometric properties of an online screening differ from an offline one. We propose that the online screening of hypnotic response is viable as it reduces the level of responsiveness only by a slight extent. The application of online screening may prompt researchers to run large-scale studies with more heterogeneous samples, which would help researchers to overcome some of the issues underlying the current replication crisis in psychology.

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Myths and misconceptions about hypnosis and suggestion: Separating fact and fiction

Lynn

Kirsch

Terhune

et al. 2020

Applied Cognitive Psychology

Self Cite

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We present 21 prominent myths and misconceptions about hypnosis in order to promulgate accurate information and to highlight questions for future research. We argue that these myths and misconceptions have (a) fostered a skewed and stereotyped view of hypnosis among the lay public, (b) discouraged participant involvement in potentially helpful hypnotic interventions, and (c) impeded the exploration and application of hypnosis in scientific and practitioner communities. Myths reviewed span the view that hypnosis produces a trance or special state of consciousness and allied myths on topics related to hypnotic interventions; hypnotic responsiveness and the modification of hypnotic suggestibility; inducing hypnosis; and hypnosis and memory, awareness, and the experience of nonvolition. By demarcating myth from mystery and fact from fiction, and by highlighting what is known as well as what remains to be discovered, the science and practice of hypnosis can be advanced and grounded on a firmer empirical footing.

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Is hypnotic suggestibility a stable trait?

Cited by 35 publications

References 23 publications

Impact of a preoperative conversational hypnotic session on propofol consumption using closed-loop anesthetic induction guided by the bispectral index

Impact of a preoperative conversational hypnotic session on propofol consumption using closed-loop anesthetic induction guided by the bispectral index

Can hypnotic suggestibility be measured online?

Myths and misconceptions about hypnosis and suggestion: Separating fact and fiction

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