Bilateral Electrodermal Activity in the Active–Alert Hypnotic Induction

Kasos, Krisztián; Kekecs, Zoltán; Kasos, Eniko; Székely, Anna; Varga, Katalin

doi:10.1080/00207144.2018.1460551

Cited by 18 publications

(17 citation statements)

References 44 publications

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“…A number of previous studies had also highlighted these bilateral differences [19,20]. Our previous study also reported lateral differences during active-alert induction [4].…”

Section: Eda Laterality During Hypnotic Inductionsupporting

confidence: 66%

“…This procedure standardized the values between −1 and +1. Negative numbers represent right side dominance, and positive numbers represent left side dominance [4].…”

Section: Data Collection and Processingmentioning

confidence: 99%

“…We usually divide people into three groups-low, medium, and high hypnotizable individuals. Low and high hypnotizables are often compared in research as the two ends of the continuum [4]. There are standardized procedures to induce hypnosis and to measure hypnotizability.…”

Section: Introductionmentioning

confidence: 99%

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Electrodermal Correlates of Hypnosis: Current Developments

Kasos¹,

Csirmaz²,

Vikor³

et al. 2020

OBM ICM

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Hypnosis has proven to be an effective treatment in disorders that affect the autonomic nervous system (ANS). However, the studies investigating the nature of its effect on the ANS have reported contradictory results. Measurement of electrodermal activity (EDA) is an objective way to assess the activity of the sympathetic branch of the ANS. We aim to elucidate the effects of hypnosis on EDA. Here, we report the results of two studies, both investigating the psychophysiological effects of hypnosis.In the first experiment, subjects engaged in an HGSHS:A group hypnosis session to measure their hypnotizability. EDA was measured bilaterally from their wrists. We found a significant reduction in EDA levels and the number of nonspecific responses during the hypnotic induction phase. This effect was observed in all three hypnotizability groups-high, medium, and low hypnotizables. A three-way interaction confirmed that EDA patterns on the left and right sides were characteristically different in these three groups. Left-side dominance was typical in high hypnotizables, whereas low hypnotizables were characteristically right-sided. EDA levels of

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“…A number of previous studies had also highlighted these bilateral differences [19,20]. Our previous study also reported lateral differences during active-alert induction [4].…”

Section: Eda Laterality During Hypnotic Inductionsupporting

confidence: 66%

“…This procedure standardized the values between −1 and +1. Negative numbers represent right side dominance, and positive numbers represent left side dominance [4].…”

Section: Data Collection and Processingmentioning

confidence: 99%

See 1 more Smart Citation

Electrodermal Correlates of Hypnosis: Current Developments

Kasos¹,

Csirmaz²,

Vikor³

et al. 2020

OBM ICM

Self Cite

View full text Add to dashboard Cite

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“…On the basis of the results of our first five experiments and considering the findings of other researchers that have replicated or extended the study of active-alert hypnosis 92 BÁNYAI (Cikurel & Gruzelier, 1990; Kasos E., Kasos, K., Pusztai, Polyák, Kovács, & Varga, in press;Kasos K., Kekecs, Kasos E., Szekely, & Varga, 2018;Kovács et al, 1996;Malott, 1984;Miller, Barabasz, & Barabasz, 1991), we can conclude that a genuine ASC can be induced by active-alert hypnotic induction.…”

Section: Active-alert Hypnosissupporting

confidence: 64%

Active-Alert Hypnosis: History, Research, and Applications

Bányai

2018

American Journal of Clinical Hypnosis

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After a brief review of the history of the idea of an activity-increasing hypnotic induction procedure with eyes open and pedaling a bicycle ergometer, the features of active-alert hypnotic induction are summarized. Results of research conducted on healthy volunteers revealed the behavioral, experiential, physiological, and interactional characteristics of the induced altered state of consciousness (ASC), showing both similarities and differences between traditional and active-alert hypnosis. A short description of the application of the method is followed by two brief case studies.

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“…It has been widely agreed that the most responsive sites to measure EDA (in awake condition in a laboratory) are the palmar and plantar surfaces (Boucsein, 2012;Boucsein et al, 2012;Dawson, Schell, & Filion, 2007;Edelberg, 1967;Payne, Dawson, Schell, Singh, & Courtney, 2013;Payne, Schell, & Dawson, 2016;Rickles & Day, 1968). However, there are instances where measurement from those body parts is not feasible (e.g., Kasos, Kekecs, Kasos, Szekely, & Varga, 2018;Rickles & Day, 1968). Also, there are certain conditions, for example, during sleep measuring non-Rem sleep storm activity, when the strongest responses were found not on the fingers but on the wrists (Sano, Picard, & Stickgold, 2014).…”

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confidence: 99%

Bilateral comparison of traditional and alternate electrodermal measurement sites

et al. 2020

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Advances in mobile and wireless technology have expanded the scope of electrodermal research. Since traditional electrodermal measurement sites are not always suitable for laboratory research and are rarely appropriate for ambulatory measurements, there is a need to explore and contrast alternate measurement locations. We evaluated bilateral electrodermal activity (EDA) from five measurement sites (fingers, feet, wrists, shoulders, and calves). In a counterbalanced, randomized, within‐subjects design study, participants (N = 115) engaged in a 4‐min‐long breathing exercise and were exposed to emotionally laden and neutral stimuli. High within‐subject correlations were found between the EDA measured from fingers bilaterally (r = .89), between the left fingers and both feet (r = .72). Moderate correlations were found between EDA measured from the left fingers and wrists (r = .30 and r = .33), low correlations between the left fingers and the shoulders (r = −.03 and r = −.06) or calves (r = .05 and r = .14). Response latency was the shortest on the fingers while it was the longest on the lower body. Short response windows would miss some of the responses from the palmar surfaces and a substantial number from other evaluated locations. The fingers and the feet are the most reliable locations to measure from, followed by the wrists. We suggest setting site‐specific response windows for different measurement locations. An investigation of repeatability showed that within‐subject correlations, response frequencies, response amplitudes show a similar pattern from the first measurement time to a later one.

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Bilateral Electrodermal Activity in the Active–Alert Hypnotic Induction

Cited by 18 publications

References 44 publications

Electrodermal Correlates of Hypnosis: Current Developments

Electrodermal Correlates of Hypnosis: Current Developments

Active-Alert Hypnosis: History, Research, and Applications

Bilateral comparison of traditional and alternate electrodermal measurement sites

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