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  Deficient modulation of pain by a positive emotional context in fibromyalgia patients

Kamping, S., Bomba, I. C., Kanske, P., Diesch, E., & Flor, H. (2013). Deficient modulation of pain by a positive emotional context in fibromyalgia patients. Pain, 154(9), 1849-1855. doi:10.1016/j.pain.2013.06.003.

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 Creators:
Kamping, Sandra1, Author
Bomba, Isabelle C.1, Author
Kanske, Philipp2, Author              
Diesch, Eugen1, Author
Flor, Herta1, Author
Affiliations:
1Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Mannheim, Germany, ou_persistent22              
2Department Social Neuroscience, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634552              

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Free keywords: Fibromyalgia; Emotion; Modulation; Imaging
 Abstract: This study aimed to investigate the modulating effects of emotional context on pain perception in 16 patients with fibromyalgia syndrome (FMS) and 16 healthy control (HC) subjects. An infrared laser was used to apply individually adapted painful stimuli to the dorsum of the left hand. The emotional background of the painful stimuli was modulated by concurrent presentations of negative, neutral, and positive picture stimuli selected from the International Affective Picture System. As control conditions, painful stimuli and the pictures were also presented by themselves. During each of the 5 laser-picture trials, subjects received 10 painful stimuli and were asked to rate the average intensity and unpleasantness of the experienced pain. Functional magnetic resonance images were obtained, using a T2∗ sensitive echo planar sequence. HC subjects showed a linear increase in pain intensity and unpleasantness ratings when painful stimuli were presented during positive, neutral, and negative pictures. In contrast, FMS patients showed a quadratic trend for pain intensity ratings indicating a lack of pain reduction by the positive pictures. In addition, the FMS patients showed less activation in secondary somatosensory cortex, insula, orbitofrontal cortex, and anterior cingulate cortex during the positive picture pain trials. Our results suggest that fibromyalgia patients are less efficient in modulating pain by positive affect and may benefit less from appetitive events than healthy control subjects.

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Language(s): eng - English
 Dates: 2013-06-0320132013-09-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.pain.2013.06.003
PMID: 23752177
Other: Epub 2013
 Degree: -

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Title: Pain
Source Genre: Journal
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Pages: - Volume / Issue: 154 (9) Sequence Number: - Start / End Page: 1849 - 1855 Identifier: ISSN: 0304-3959
CoNE: https://pure.mpg.de/cone/journals/resource/954925512449