Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population

Conditioned pain modulation (CPM) is an endogenous pain inhibition phenomenon that can be summarized simply as one type of pain being able to inhibit another, which must be in a remote area in relation to the first pain. We aimed to compare the effectiveness of four CPM test paradigms as well as the...

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Main Authors: María del Rocío Ibancos-Losada, María C. Osuna-Pérez, María Yolanda Castellote-Caballero, Ángeles Díaz-Fernández
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/10/9/599
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author María del Rocío Ibancos-Losada
María C. Osuna-Pérez
María Yolanda Castellote-Caballero
Ángeles Díaz-Fernández
author_facet María del Rocío Ibancos-Losada
María C. Osuna-Pérez
María Yolanda Castellote-Caballero
Ángeles Díaz-Fernández
author_sort María del Rocío Ibancos-Losada
collection DOAJ
description Conditioned pain modulation (CPM) is an endogenous pain inhibition phenomenon that can be summarized simply as one type of pain being able to inhibit another, which must be in a remote area in relation to the first pain. We aimed to compare the effectiveness of four CPM test paradigms as well as the association of the CPM effect with potential predictors in 72 healthy volunteers. Pressure pain from an algometer was used as the test stimulus, and pain provoked by cold water or ischemic pressure was used as the conditioning stimulus, applied either sequentially or in parallel. No significant differences were found between the test paradigms, although the cold-parallel test showed the most significant effect size (ηP<sup>2</sup> = 0.614). No association was found between the CPM effect and sociodemographic variables (age or sex), nor anxiety, depression, catastrophizing, previous history of pain or self-perceived pain tolerance. Nevertheless, a strong association was found between the CPM effect and individual affinity for the stimulus in participants who underwent the cold water test paradigm; this explained around 45% of the total CPM effect when the paradigm (cold water) coincided with personal affinity for the stimulus (“I prefer cold to heat”, “cold is not unpleasant”).
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spelling doaj.art-96cfcdb60ebf45c389df6cbe5397541b2023-11-20T11:54:49ZengMDPI AGBrain Sciences2076-34252020-08-0110959910.3390/brainsci10090599Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy PopulationMaría del Rocío Ibancos-Losada0María C. Osuna-Pérez1María Yolanda Castellote-Caballero2Ángeles Díaz-Fernández3Physiotherapy Clinic Center of Bartolomé Puerta, Jaén-23006, SpainDepartment of Health Sciences, University of Jaén, Jaén-23071, SpainDepartment of Health Sciences, University of Jaén, Jaén-23071, SpainDepartment of Health Sciences, University of Jaén, Jaén-23071, SpainConditioned pain modulation (CPM) is an endogenous pain inhibition phenomenon that can be summarized simply as one type of pain being able to inhibit another, which must be in a remote area in relation to the first pain. We aimed to compare the effectiveness of four CPM test paradigms as well as the association of the CPM effect with potential predictors in 72 healthy volunteers. Pressure pain from an algometer was used as the test stimulus, and pain provoked by cold water or ischemic pressure was used as the conditioning stimulus, applied either sequentially or in parallel. No significant differences were found between the test paradigms, although the cold-parallel test showed the most significant effect size (ηP<sup>2</sup> = 0.614). No association was found between the CPM effect and sociodemographic variables (age or sex), nor anxiety, depression, catastrophizing, previous history of pain or self-perceived pain tolerance. Nevertheless, a strong association was found between the CPM effect and individual affinity for the stimulus in participants who underwent the cold water test paradigm; this explained around 45% of the total CPM effect when the paradigm (cold water) coincided with personal affinity for the stimulus (“I prefer cold to heat”, “cold is not unpleasant”).https://www.mdpi.com/2076-3425/10/9/599conditioned pain modulation (CPM)ischemic paincold painconditioning stimulusstimulus parameter
spellingShingle María del Rocío Ibancos-Losada
María C. Osuna-Pérez
María Yolanda Castellote-Caballero
Ángeles Díaz-Fernández
Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
Brain Sciences
conditioned pain modulation (CPM)
ischemic pain
cold pain
conditioning stimulus
stimulus parameter
title Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
title_full Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
title_fullStr Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
title_full_unstemmed Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
title_short Conditioned Pain Modulation Effectiveness: An Experimental Study Comparing Test Paradigms and Analyzing Potential Predictors in a Healthy Population
title_sort conditioned pain modulation effectiveness an experimental study comparing test paradigms and analyzing potential predictors in a healthy population
topic conditioned pain modulation (CPM)
ischemic pain
cold pain
conditioning stimulus
stimulus parameter
url https://www.mdpi.com/2076-3425/10/9/599
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