Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain

The ability to perceive and feel another person' pain as if it were one's own pain, e.g., pain empathy, is related to brain activity in the “pain-matrix” network. A non-core region of this network in Dorsolateral Prefrontal Cortex (DLPFC) has been suggested as a modulator of the attentiona...

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Main Authors: Carolina Travassos, Alexandre Sayal, Bruno Direito, João Castelhano, Miguel Castelo-Branco
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-07-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fneur.2020.00714/full
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author Carolina Travassos
Carolina Travassos
Carolina Travassos
Alexandre Sayal
Alexandre Sayal
Alexandre Sayal
Bruno Direito
Bruno Direito
João Castelhano
João Castelhano
Miguel Castelo-Branco
Miguel Castelo-Branco
Miguel Castelo-Branco
author_facet Carolina Travassos
Carolina Travassos
Carolina Travassos
Alexandre Sayal
Alexandre Sayal
Alexandre Sayal
Bruno Direito
Bruno Direito
João Castelhano
João Castelhano
Miguel Castelo-Branco
Miguel Castelo-Branco
Miguel Castelo-Branco
author_sort Carolina Travassos
collection DOAJ
description The ability to perceive and feel another person' pain as if it were one's own pain, e.g., pain empathy, is related to brain activity in the “pain-matrix” network. A non-core region of this network in Dorsolateral Prefrontal Cortex (DLPFC) has been suggested as a modulator of the attentional-cognitive dimensions of pain processing in the context of pain empathy. We conducted a neurofeedback experiment using real-time functional magnetic resonance imaging (rt-fMRI-NF) to investigate the association between activity in the left DLPFC (our neurofeedback target area) and the perspective assumed by the participant (“first-person”/“Self” or “third-person”/“Other” perspective of a pain-inducing stimulus), based on a customized pain empathy task. Our main goals were to assess the participants' ability to volitionally modulate activity in their own DLPFC through an imagery task of pain empathy and to investigate into which extent this ability depends on feedback. Our results demonstrate participants' ability to significantly modulate brain activity of the neurofeedback target area for the “first-person”/”Self” and “third-person”/”Other” perspectives. Results of both perspectives show that the participants were able to modulate (with statistical significance) the activity already in the first run of the session, in spite of being naïve to the task and even in the absence of feedback information. Moreover, they improved modulation throughout the session, particularly in the “Self” perspective. These results provide new insights on the role of DLPFC in pain and pain empathy mechanisms and validate the proposed protocol, paving the way for future interventional studies in clinical populations with empathic deficits.
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spelling doaj.art-e71f948837bc46fb89198bb82746f9852022-12-22T01:30:09ZengFrontiers Media S.A.Frontiers in Neurology1664-22952020-07-011110.3389/fneur.2020.00714549032Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for PainCarolina Travassos0Carolina Travassos1Carolina Travassos2Alexandre Sayal3Alexandre Sayal4Alexandre Sayal5Bruno Direito6Bruno Direito7João Castelhano8João Castelhano9Miguel Castelo-Branco10Miguel Castelo-Branco11Miguel Castelo-Branco12Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, PortugalInstitute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, PortugalSiemens Healthineers, Lisbon, PortugalCoimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, PortugalInstitute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, PortugalSiemens Healthineers, Lisbon, PortugalCoimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, PortugalInstitute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, PortugalCoimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, PortugalInstitute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, PortugalCoimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, PortugalInstitute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, PortugalFaculty of Medicine, University of Coimbra, Coimbra, PortugalThe ability to perceive and feel another person' pain as if it were one's own pain, e.g., pain empathy, is related to brain activity in the “pain-matrix” network. A non-core region of this network in Dorsolateral Prefrontal Cortex (DLPFC) has been suggested as a modulator of the attentional-cognitive dimensions of pain processing in the context of pain empathy. We conducted a neurofeedback experiment using real-time functional magnetic resonance imaging (rt-fMRI-NF) to investigate the association between activity in the left DLPFC (our neurofeedback target area) and the perspective assumed by the participant (“first-person”/“Self” or “third-person”/“Other” perspective of a pain-inducing stimulus), based on a customized pain empathy task. Our main goals were to assess the participants' ability to volitionally modulate activity in their own DLPFC through an imagery task of pain empathy and to investigate into which extent this ability depends on feedback. Our results demonstrate participants' ability to significantly modulate brain activity of the neurofeedback target area for the “first-person”/”Self” and “third-person”/”Other” perspectives. Results of both perspectives show that the participants were able to modulate (with statistical significance) the activity already in the first run of the session, in spite of being naïve to the task and even in the absence of feedback information. Moreover, they improved modulation throughout the session, particularly in the “Self” perspective. These results provide new insights on the role of DLPFC in pain and pain empathy mechanisms and validate the proposed protocol, paving the way for future interventional studies in clinical populations with empathic deficits.https://www.frontiersin.org/article/10.3389/fneur.2020.00714/fullneuroimagingreal-time fMRIneurofeedbackpain empathydorsolateral prefrontal cortex
spellingShingle Carolina Travassos
Carolina Travassos
Carolina Travassos
Alexandre Sayal
Alexandre Sayal
Alexandre Sayal
Bruno Direito
Bruno Direito
João Castelhano
João Castelhano
Miguel Castelo-Branco
Miguel Castelo-Branco
Miguel Castelo-Branco
Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
Frontiers in Neurology
neuroimaging
real-time fMRI
neurofeedback
pain empathy
dorsolateral prefrontal cortex
title Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
title_full Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
title_fullStr Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
title_full_unstemmed Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
title_short Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy Paradigm—A Potential Novel Therapeutic Target for Pain
title_sort volitional modulation of the left dlpfc neural activity based on a pain empathy paradigm a potential novel therapeutic target for pain
topic neuroimaging
real-time fMRI
neurofeedback
pain empathy
dorsolateral prefrontal cortex
url https://www.frontiersin.org/article/10.3389/fneur.2020.00714/full
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