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Controllability and hippocampal activation during pain expectation in fibromyalgia syndrome

To examine the role of perceived control in pain perception, fibromyalgia patients and healthy controls participated in a reaction time experiment under different conditions of pain controllability. No significant differences between groups were found in pain intensity and unpleasantness ratings. Ho...

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Hauptverfasser: Gonzalez Roldan, Ana Maria (VerfasserIn) , Diesch, Eugen (VerfasserIn) , Flor, Herta (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: December 2016
In: Biological psychology
Year: 2016, Jahrgang: 121, Pages: 39-48
ISSN:1873-6246
DOI:10.1016/j.biopsycho.2016.09.007
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/j.biopsycho.2016.09.007
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0301051116302848
Volltext
Verfasserangaben:Ana María González-Roldán, Isabelle C. Bomba, Eugen Diesch, Pedro Montoya, Herta Flor, Sandra Kamping

MARC

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520 |a To examine the role of perceived control in pain perception, fibromyalgia patients and healthy controls participated in a reaction time experiment under different conditions of pain controllability. No significant differences between groups were found in pain intensity and unpleasantness ratings. However, during the expectation of uncontrollable pain, patients compared to controls showed higher hippocampal activation. In addition, hippocampal activity during the pain expectation period predicted activation of the posterior cingulate cortex (PCC), precuneus and hippocampus during pain stimulation in fibromyalgia patients. The increased activation of the hippocampus during pain expectation and subsequent activation of the PCC/precuneus during the lack of control phase points towards an influence of pain perception through heightening of alertness and anxiety responses to pain in fibromyalgia patients. 
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