Skip to content

Interest of Catalepsy in the Hypnotic Trance

Effects of Catalepsy on the Parasympathetic Tone Assessed by ANI (Analgesia/Nociception Index) and on Absorption, Dissociation and Perception of Time During the Hypnotic Trance.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05306262
Acronym
CATALHYPNOANI
Enrollment
90
Registered
2022-04-01
Start date
2022-05-26
Completion date
2022-05-28
Last updated
2022-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypnosis

Keywords

Hypnosis, Catalepsy, Parasympathetic tone, Absorption, Dissociation, Perception of time

Brief summary

Catalepsy seems to facilitate hypnotic induction and deepen hypnotic trance, although no work confirms the usefulness of this technique which is in common use in hypnosis. Furthermore, it has been shown that the hypnotic trance state is accompanied by an increase in parasympathetic tone, the non-invasive measurement of which is easy by the ANI monitor (Analgesia Nociception Index). The research hypothesis is that, by adding a body dissociation, catalepsy could facilitate and intensify the hypnotic trance, the intensity of which can be monitored and is proportional to the parasympathetic tone.

Detailed description

After randomization, subjects will either benefit from the normal hypnotic trance, or from the hypnotic trance associated with catalepsy of the hand. T0 = installation in a sitting position and collection of an accompanying theme T1 = induction of the hypnotic trance (closing eyes) with restitution of the theme to the patient and suggestion of comfort over a period of 5 to 10 min T2 = validation of comfort by a pre-established signal T3 = return to consciousness (opening eyes) T4 = end of questionnaire about absorption, dissociation and time perception

Interventions

Comfort hypnosis: accompaniment of a pleasant memory.

OTHERCatalepsy

Catalepsy of the hand.

Sponsors

CMC Ambroise Paré
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy Volunteers * Consent for participation * Affiliation to the social security system

Exclusion criteria

* Arrhythmia (atrial fibrillation, pacemaker, defibrillator) * Autonomic nervous system disorder (paraplegia, epilepsy, etc.) * Pregnant or breastfeeding woman * Patients under protection of the adults (guardianship, curators or safeguard of justice) * Communication difficulties

Design outcomes

Primary

MeasureTime frameDescription
Parasympathetic tone30 minutesAnalgesia Nociception Index (ANI)

Secondary

MeasureTime frameDescription
Absorption30 minutesNumeric scale from 0 to 10 (0=not at all, 10=completely)
Dissociation30 minutesNumeric scale from 0 to 10 (0=completely in the reality, 10=completely disconnected from reality)
Time perception (minute)30 minutesDifference between the time of hypnosis session estimated by the patient and the actual time of hypnosis session (from closing to opening the eyes).
Variation of Heart Rate (beat per minute)30 minutesHeart rate measured by a pulse oximeter
Variation of Respiratory Rate (breath per minute)30 minutesRespiratory rate assessed by the investigator

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026