Pain Catastrophizing and Salivary Cortisol Responses to Laboratory Pain Testing in Temporomandibular Disorder and Healthy Participants

Phillip J. Quartana, Luis F. Buenaver, Robert R. Edwards, Brendan Klick, Jennifer A. Haythornthwaite, Michael T. Smith

Research output: Contribution to journalArticlepeer-review

Abstract

Pain catastrophizing is an important variable in the context of acute and chronic pain. The neurophysiological correlates of pain catastrophizing, however, have not been rigorously evaluated. We examined the relationship between trait-pain catastrophizing and morning salivary cortisol levels before and following a 45-minute laboratory pain-testing session in healthy, pain-free (n = 22), and temporomandibular disorder (TMD) participants (n = 39). We also examined whether TMD patients evidenced generalized hyperalgesia and hypercortisolism. Pain catastrophizing was associated with a flattened morning salivary cortisol profile in the context of pain testing, irrespective of pain status. Cortisol profiles did not differ between healthy and TMD participants. TMD was associated with mechanical hyperalgesia only at the masseter. These data are the first to show an association between pain catastrophizing and elevated salivary cortisol profiles in the context of standardized experimental pain testing. These findings in both healthy individuals and those with chronic orofacial pain suggest that aberrant adrenocortical responses to pain may serve as a neurophysiologic pathway by which pain catastrophizing enhances vulnerability for development of chronic pain and maintains and/or exaggerates existing pain and associated morbidity. Perspective: Neurophysiological mechanisms by which pain catastrophizing is related to acute and chronic pain recently have come under empirical study. Understanding of these mechanisms has the unique potential to shed light on key central-nervous-system factors that mediate catastrophizing-pain relations and therapeutic benefits associated with changes in catastrophizing and related cognitive processes.

Original languageEnglish (US)
Pages (from-to)186-194
Number of pages9
JournalJournal of Pain
Volume11
Issue number2
DOIs
StatePublished - Feb 1 2010

Keywords

  • HPA
  • Pain catastrophizing
  • pain threshold
  • pressure pain
  • temporomandibular disorders
  • thermal pain

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

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