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Title: The Bed Nucleus of the Stria Terminalis as a Brain Correlate of Psychological Inflexibility in Fibromyalgia
Author: Feliu Soler, Albert
Martínez Zalacaín, Ignacio
Pérez Aranda, Adrián
Borràs, Xavier
Andrés Rodríguez, Laura
Sanabria Mazo, Juan P.
Fayed, Nicolás
Stephan-Otto, Christian
Núñez, Christian
Soriano Mas, Carles
Luciano, Juan V.
Keywords: Fibromiàlgia
Psicologia clínica
Clinical psychology
Issue Date: 30-Jan-2020
Publisher: MDPI AG
Abstract: This study explored the brain structural correlates of psychological flexibility (PF) as measured with the Psychological Inflexibility in Pain Scale (PIPS) in patients with fibromyalgia (FM). Structural magnetic resonance imaging data from 47 FM patients were used to identify Gray Matter Volume (GMV) alterations related to PIPS scores. Brain GMV clusters related to PIPS were then correlated with clinical and cognitive variables to further explore how emerged brain clusters were intertwined with FM symptomatology. Longitudinal changes in PIPS-related brain clusters values were assessed by studying pre–post data from 30 patients (15 allocated to a mindfulness-based stress reduction (MBSR) program and 15 to treatment-as-usual). Changes in PIPS-related brain clusters were also explored in participants showing greater/lower longitudinal changes in PIPS scores. PIPS scores were positively associated with GMV in a bilateral cluster in the ventral part of the bed nucleus of the stria terminalis (BNST). Significant associations between BNST cluster with functional impairment, depressive symptomatology, perceived stress and the nonjudging mindfulness facet were observed. Participants reporting greater pre–post increases in PIPS scores showed greater increases in BNST cluster values. These findings contribute to the understanding on the neurobiological bases of PF in FM and encourage further explorations of the role of the BNST in chronic pain
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It is part of: Journal of Clinical Medicine, 2020, vol. 9, issue. 2, p. 374
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Appears in Collections:Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))

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