Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study

ABSTRACT Introduction: Chronic low back pain (CLBP) is a prevalent and debilitating condition. Cognitive behavioral therapy (CBT) can improve coping mechanisms for CLBP and pain‐related outcomes. However, the mechanisms by which they do so remain undetermined. We explored the neural correlates of CL...

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Main Authors: Sonia Medina, Carlos G. Forero, Juan P. Sanabria‐Mazo, Carla Rodríguez‐Freire, Jaime Navarrete, Owen G. O'Daly, Matthew A. Howard, Juan V. Luciano
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Brain and Behavior
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Online Access:https://doi.org/10.1002/brb3.70380
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author Sonia Medina
Carlos G. Forero
Juan P. Sanabria‐Mazo
Carla Rodríguez‐Freire
Jaime Navarrete
Owen G. O'Daly
Matthew A. Howard
Juan V. Luciano
author_facet Sonia Medina
Carlos G. Forero
Juan P. Sanabria‐Mazo
Carla Rodríguez‐Freire
Jaime Navarrete
Owen G. O'Daly
Matthew A. Howard
Juan V. Luciano
author_sort Sonia Medina
collection DOAJ
description ABSTRACT Introduction: Chronic low back pain (CLBP) is a prevalent and debilitating condition. Cognitive behavioral therapy (CBT) can improve coping mechanisms for CLBP and pain‐related outcomes. However, the mechanisms by which they do so remain undetermined. We explored the neural correlates of CLBP symptoms and CBT action using functional magnetic resonance imaging (fMRI) in women with CLBP and comorbid depression. Methods: Forty individuals underwent fMRI followed by 8 weeks of either treatment as usual (TAU) or one of two CBT in addition to TAU: acceptance and commitment therapy (ACT) or behavioral activation treatment for depression (BATD). Pain intensity, depression, psychological inflexibility, and pain catastrophizing scores were obtained at baseline and follow‐up. Functional connectivity (FC) patterns of the salience network (SN), sensorimotor network (SMN), and the mesolimbic pathway (MLP), derived from resting‐state fMRI examination were correlated with both baseline and delta (baseline—follow‐up) pain‐related psychological measures. Results: Individuals receiving ACT and BATD showed reduced depression, psychological inflexibility, and pain catastrophizing. Strong baseline connectivity of the SN and SMN corresponded with higher pain intensity, but strong connectivity of the MLP and precuneus corresponded with lower pain intensity. Pain intensity changes correlated with mesolimbic‐salience connectivity following ACT, and with sensorimotor connectivity following BATD. Specifically, stronger baseline FC between the MLP and posterior insula predicted greater pain intensity reduction with ACT, while stronger FC between the SMN and secondary somatosensory cortex predicted greater pain intensity reduction with BATD. FC of the SN correlated with changes in psychological inflexibility across both therapies. Conclusions: We illustrate the potential of FC as a biomarker of CLBP plus depression and the response to CBT. Our data suggest ACT and BATD have differing underlying brain mechanisms. These findings indicate that FC biomarkers could guide personalized treatment, improving individual outcomes.
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spelling doaj-art-95c677d9912640b7a5afd10f76690d622025-08-20T03:05:14ZengWileyBrain and Behavior2162-32792025-03-01153n/an/a10.1002/brb3.70380Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI StudySonia Medina0Carlos G. Forero1Juan P. Sanabria‐Mazo2Carla Rodríguez‐Freire3Jaime Navarrete4Owen G. O'Daly5Matthew A. Howard6Juan V. Luciano7Department of Neuroimaging King's College London London UKSchool of Medicine Universitat Internacional de Catalunya Sant Cugat del Vallès SpainTeaching, Research & Innovation Unit Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat SpainTeaching, Research & Innovation Unit Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat SpainTeaching, Research & Innovation Unit Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat SpainDepartment of Neuroimaging King's College London London UKDepartment of Neuroimaging King's College London London UKTeaching, Research & Innovation Unit Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat SpainABSTRACT Introduction: Chronic low back pain (CLBP) is a prevalent and debilitating condition. Cognitive behavioral therapy (CBT) can improve coping mechanisms for CLBP and pain‐related outcomes. However, the mechanisms by which they do so remain undetermined. We explored the neural correlates of CLBP symptoms and CBT action using functional magnetic resonance imaging (fMRI) in women with CLBP and comorbid depression. Methods: Forty individuals underwent fMRI followed by 8 weeks of either treatment as usual (TAU) or one of two CBT in addition to TAU: acceptance and commitment therapy (ACT) or behavioral activation treatment for depression (BATD). Pain intensity, depression, psychological inflexibility, and pain catastrophizing scores were obtained at baseline and follow‐up. Functional connectivity (FC) patterns of the salience network (SN), sensorimotor network (SMN), and the mesolimbic pathway (MLP), derived from resting‐state fMRI examination were correlated with both baseline and delta (baseline—follow‐up) pain‐related psychological measures. Results: Individuals receiving ACT and BATD showed reduced depression, psychological inflexibility, and pain catastrophizing. Strong baseline connectivity of the SN and SMN corresponded with higher pain intensity, but strong connectivity of the MLP and precuneus corresponded with lower pain intensity. Pain intensity changes correlated with mesolimbic‐salience connectivity following ACT, and with sensorimotor connectivity following BATD. Specifically, stronger baseline FC between the MLP and posterior insula predicted greater pain intensity reduction with ACT, while stronger FC between the SMN and secondary somatosensory cortex predicted greater pain intensity reduction with BATD. FC of the SN correlated with changes in psychological inflexibility across both therapies. Conclusions: We illustrate the potential of FC as a biomarker of CLBP plus depression and the response to CBT. Our data suggest ACT and BATD have differing underlying brain mechanisms. These findings indicate that FC biomarkers could guide personalized treatment, improving individual outcomes.https://doi.org/10.1002/brb3.70380ACTBATDchronic paindepressionfMRI
spellingShingle Sonia Medina
Carlos G. Forero
Juan P. Sanabria‐Mazo
Carla Rodríguez‐Freire
Jaime Navarrete
Owen G. O'Daly
Matthew A. Howard
Juan V. Luciano
Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
Brain and Behavior
ACT
BATD
chronic pain
depression
fMRI
title Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
title_full Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
title_fullStr Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
title_full_unstemmed Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
title_short Baseline Functional Connectivity of the Mesolimbic, Salience, and Sensorimotor Systems Predicts Responses to Psychological Therapies for Chronic Low Back Pain With Comorbid Depression: A Functional MRI Study
title_sort baseline functional connectivity of the mesolimbic salience and sensorimotor systems predicts responses to psychological therapies for chronic low back pain with comorbid depression a functional mri study
topic ACT
BATD
chronic pain
depression
fMRI
url https://doi.org/10.1002/brb3.70380
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