- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06017388
Mystical Experience in Hypnosis: a Neurophenomenological Study (MystHyp)
A Neurophenomenological Study of Hypnosis
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Anyone interested in taking part in the study will be contacted by telephone or e-mail and offered a face-to-face appointment to carry out the screening (T0). During the appointment, screening (cf. inclusion criteria) will be carried out, socio-demographic data (age, sex, education, nationality, history of hypnosis practice, etc.) and randomization will also take place at this time. At this time, the investigators will assess psychological flexibility and psychologigal well-being, and participants will do a cognitive flexibility task (T1). If people meet the inclusion criteria, the investigators will schedule an appointment for a session to take place roughly a week later.
During this session, the investigators will start by reviewing beliefs about hypnosis, assessing participants' expectations of the study, their absorption and dissociation trait, their positive and negative affects and their anxiety. Next, the investigators will perform a 15-minute resting electroencephalographic (EEG) recording. We will then administer the Elkins Hypnotizability Scale. A 30-minute break will be taken. Next, the investigators willperform a hypnotic induction followed by a mystical experience suggestion for the experimental group. The control group will simply receive a reading of the mystical experience suggestion without hypnosis. The rest of the procedure is the same for both groups. EEG activity will be recorded during the mystical experience suggestion (± 15 minutes) in hypnosis and outside hypnosis (ordinary state of consciousness). Directly afterwards, participants will be asked to orally explain their subjective experience during the suggestion of mystical experience. Then the investigators will assess the positive and negative affect in addition to these outcomes: the mystical experience, the ego dissolution, the psychological flexibility, the cognitive flexibility, the altered state of consciousness, the near-death experience, alterness, absorption state, dissociation state, time perception (T2).
Three months after receiving the experimental session, participants will be seen again for a follow-up session (T3). During this session, we will ask: "Since the experimental session, have you observed any changes in your behaviors, emotions and beliefs? If so, can you tell us about them?". The investigators will assess the positive and negative affects and psychological well-being.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Aminata Bicego
- Phone Number: +3243663499
- Email: abicego@uliege.be
Study Contact Backup
- Name: Audrey Vanhaudenhuyse
- Phone Number: +3243238033
- Email: avanhaudenhuyse@chuliege.be
Study Locations
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-
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Liège, Belgium, 4000
- Recruiting
- University of Liege
-
Contact:
- Aminata Bicego, PhD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- at least 18 years old
- good comprehension of French
Exclusion Criteria:
- Psychiatric history
- History of neurological disorder
- Psychoactive medication
- Addiction
- Alcoholism
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Control
The control group will simply receive a reading of the mystical experience suggestion without hypnosis.
|
We will propose the neutral reading of a mystical expetience suggestion (based on Lynn & Evans, 2017).
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Experimental: Experiemental
The experiemental group will receive a suggestion of the mystical experience in hypnosis.
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We will propose a hypnotic induction followed by a suggestion of mystical experience (based on Lynn & Evans, 2017).
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mystical experience
Time Frame: During the procedure
|
The 30-item revised Mystical Experience Questionnaire will assess the occurrence and intensity of mystical-type experiences.
It is comprised of four factors: mysticality, positivity of mood, transcendence of time and space, and ineffability.
A mystical experience is defined as having a score equal or above 60% on all factors.
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During the procedure
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Hypnotizability
Time Frame: During the procedure
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The susceptibility one has concerning hypnosis. Will be assessed with the Elkins Hypnotizability Scale. A score : 0-3 : low hypnotizability 4-7: medium hypnotizability 8-11 : high hypnotizability 12 : very high hypnotizability. |
During the procedure
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ego Dissolution
Time Frame: During the procedure
|
The Ego Dissolution Inventory will assess the occurrence of ego dissolution.
|
During the procedure
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Alteration of consciousness
Time Frame: During the procedure
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The Phenomenology of Consciousness Inventory will allow to empirically quantify the subjective experience in terms of pattern and intensity parameters.
It is composed of 53 items consisting of 12 major dimensions (e.g., positive affect), and 14 minor dimensions (e.g., absorption) (annex).
Graphs will be constructed to represent the intensity and pattern of relationships between pairs of dimensions.
|
During the procedure
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Psychological flexibility
Time Frame: Before the procedure and direclty after the procedure
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Multidimensional Psychological Flexibility Inventory.
|
Before the procedure and direclty after the procedure
|
Cognitive flexibility
Time Frame: Before the procedure and direclty after the procedure
|
Cognitive flexility will be assessed with the Test of Attentional Performance which is an informatized cognitive task.
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Before the procedure and direclty after the procedure
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Psychological well-being
Time Frame: Before the intervention and after 3 months
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Psychological well-being will be assessed with the Warwick-Edinburgh Mental Well-Being Scale
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Before the intervention and after 3 months
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Modification of mood, cognition, emotion and behavior
Time Frame: After 3 months
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We will ask an open-ended question "Since the experimental session, have you observed any changes in your behaviors, emotions and beliefs?
If so, can you tell us about them?".
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After 3 months
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Phenomenal experience
Time Frame: During the procedure
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Phenomenal experience will be assessed by the recording of the narrative experience.
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During the procedure
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Socio-demographics
Time Frame: At screening
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age, sex, éducation, nationality, prior practice of hypnosis or other non-ordinary states of consciousness, prior mystical experience.
|
At screening
|
Psychiatric screening
Time Frame: At screening
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Psychiatric screening will be assessed with the Mini-International Neuropsychiatric Interview
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At screening
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Beliefs about hypnosis
Time Frame: Before the procedure
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Beliefs about hypnosis will be assessed with an open-ended question "What are your beliefs about hypnosis?"
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Before the procedure
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Expectancies about the study
Time Frame: Before the procedure
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Expectancies about the study will be assessed with an open-ended question "What are your expectancies about the study?"
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Before the procedure
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Phenomenal control
Time Frame: During the procedure
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The phenomenal control will be assessed with the Phenomenological Control Scale.
|
During the procedure
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Positive and negative affects
Time Frame: Beforethe procedure, During the procedure, direcly after the procedure, and after 3 months
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Positive and negative affects will be assessed with the Positive Affect and Negative Affect.
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Beforethe procedure, During the procedure, direcly after the procedure, and after 3 months
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Absorption trait
Time Frame: Before the procedure
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The absorption trait will be assessed with the Tellegen Absorption Scale which consists of 34 true/false items, aiming to measure the absorption of a person, meaning the disposition for having episodes of a deep involvement that engage all the subject's resources (perceptual, imaginative, and cognitive).
The total score range is from 0 to 34.
The higher the score, the more one has a high propensity for absorption.
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Before the procedure
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Dissociation trait
Time Frame: Before the procedure
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The dissociation trait will be assessed with the Dissociative Experience Scale.
It is a self-reported questionnaire used to evaluate the presence, quantity, and type of dissociative experiences one might live in daily life.
It consists of 28 items arranged on an analog scale (from 0 to 100% measuring the frequency of dissociative experiences), and the total score ranges from 0 to 100.
There is a cutoff of 45 as a mean score to suggest a dissociative disorder.
This questionnaire is not a diagnostic instrument; it is designed only for screening, but it can suggest that a specific clinical assessment is needed.
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Before the procedure
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Anxiety state
Time Frame: Before the procedure and during the procedure
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Anxiety will be assessed with a numerical rating scale.
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Before the procedure and during the procedure
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Absorption state
Time Frame: During the procedure
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Absorption will be assessed with a numerical rating scale.
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During the procedure
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Dissociation state
Time Frame: During the procedure
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Dissociation will be assessed with a numerical rating scale.
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During the procedure
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Alertness
Time Frame: During the procedure
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Alertness will be assessed with a numerical rating scale.
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During the procedure
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Time perception
Time Frame: During the procedure
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We will ask the participants how long they thought the intervention lasted.
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During the procedure
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Near Death Experience
Time Frame: During the procedure
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The near death experience will be assessed with the The Near-Death Experience Content (NDE-C) Scale.
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During the procedure
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 2022-213
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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