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Clinical Trial Summary

The purpose of this study is to evaluate and compare the immediate effects of self-hypnosis, mindfulness meditation and a spiritual intervention relative to a control condition for increasing pain tolerance and reducing pain intensity and pain-related stress, in response to experimental painful stimulation.


Clinical Trial Description

The primary aim of this study (Aim 1) is to compare the immediate effects of self-hypnosis (SH), mindfulness meditation (MM), and Christian meditation (CM), relative to a control group (CN), for increasing pain tolerance and reducing pain intensity and pain-related stress, in response to experimental painful stimulation in a sample of healthy volunteers.

An exploratory aim of this study (Aim 2) is to identify possible shared and unique predictors of response to the three treatment conditions. The possible predictors we plan to test include sex, age, religious affiliation, hypnotic suggestibility, baseline mindfulness, acceptance, pain-related beliefs, religiosity, trait spirituality, previous experience with SH, MM and CP, outcome expectancies, and trait absorption.

This is a randomized quantitative experimental mixed-model repeated-measures study with three assessment points: baseline (T0), pre-test (T1), and post-test (T2). Eligible healthy adults will be randomized to one of the four study conditions. Interventions will be a 20-minutes audio-guided practice of either self-hypnosis, mindfulness meditation, or Christian prayer. Participants in the control group will not be instructed to use any specific strategy during the painful stimulation. Participants will be submitted to a first cycle of Cold Pressor Arm Wrap. They will then listen to a 20-minutes audio recording inducing one of the three interventions, or, in the case of the control group, to a 20-minutes recording of a natural history textbook. Primary outcomes are pain intensity, pain tolerance, and pain-related stress as measured by salivary cortisol level and heart rate variability. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04491630
Study type Interventional
Source ISPA - Instituto Universitario de Ciencias Psicologicas, Sociais e da Vida
Contact Alexandra Ferreira-Valente, PhD
Phone +351969082988
Email mafvalente@gmail.com
Status Not yet recruiting
Phase N/A
Start date September 2020
Completion date March 2022

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