The lateral prefrontal cortex mediates the hyperalgesic effects of negative cognitions in chronic pain patients.

Détails

ID Serval
serval:BIB_6438CCCC4E0E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The lateral prefrontal cortex mediates the hyperalgesic effects of negative cognitions in chronic pain patients.
Périodique
The journal of pain
Auteur⸱e⸱s
Loggia M.L., Berna C., Kim J., Cahalan C.M., Martel M.O., Gollub R.L., Wasan A.D., Napadow V., Edwards R.R.
ISSN
1528-8447 (Electronic)
ISSN-L
1526-5900
Statut éditorial
Publié
Date de publication
08/2015
Peer-reviewed
Oui
Volume
16
Numéro
8
Pages
692-699
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural
Publication Status: ppublish
Résumé
Although high levels of negative affect and cognitions have been associated with greater pain sensitivity in chronic pain conditions, the neural mechanisms mediating the hyperalgesic effect of psychological factors in patients with pain disorders are largely unknown. In this cross-sectional study, we hypothesized that 1) catastrophizing modulates brain responses to pain anticipation and 2) anticipatory brain activity mediates the hyperalgesic effect of different levels of catastrophizing in fibromyalgia (FM) patients. Using functional magnetic resonance imaging, we scanned the brains of 31 FM patients exposed to visual cues anticipating the onset of moderately intense deep-tissue pain stimuli. Our results indicated the existence of a negative association between catastrophizing and pain-anticipatory brain activity, including in the right lateral prefrontal cortex. A bootstrapped mediation analysis revealed that pain-anticipatory activity in the lateral prefrontal cortex mediates the association between catastrophizing and pain sensitivity. These findings highlight the role of the lateral prefrontal cortex in the pathophysiology of FM-related hyperalgesia and suggest that deficits in the recruitment of pain-inhibitory brain circuitry during pain-anticipatory periods may play an important contributory role in the association between various degrees of widespread hyperalgesia in FM and levels of catastrophizing, a well-validated measure of negative cognitions and psychological distress.
This article highlights the presence of alterations in pain-anticipatory brain activity in FM. These findings provide the rationale for the development of psychological or neurofeedback-based techniques aimed at modifying patients' negative affect and cognitions toward pain.

Mots-clé
Adult, Catastrophization, Chronic Pain/etiology, Chronic Pain/physiopathology, Chronic Pain/psychology, Cognition Disorders/etiology, Female, Fibromyalgia/complications, Humans, Hyperalgesia/pathology, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Oxygen/blood, Pain Measurement, Pain Threshold, Prefrontal Cortex/blood supply, Prefrontal Cortex/physiopathology, Psychophysics, Fibromyalgia, catastrophizing, functional magnetic resonance imaging, negative affect, psychophysics
Pubmed
Web of science
Création de la notice
07/02/2018 17:40
Dernière modification de la notice
20/08/2019 14:20
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