Multiple Brain Networks Mediating Stimulus-Pain Relationships in Humans

Stephan Geuter, Elizabeth A. Reynolds Losin, Mathieu Roy, Lauren Y. Atlas, Liane Schmidt, Anjali Krishnan, Leonie Koban, Tor D. Wager, Martin A. Lindquist

Research output: Contribution to journalArticle

Abstract

The brain transforms nociceptive input into a complex pain experience comprised of sensory, affective, motivational, and cognitive components. However, it is still unclear how pain arises from nociceptive input and which brain networks coordinate to generate pain experiences. We introduce a new high-dimensional mediation analysis technique to estimate distributed, network-level patterns that formally mediate the relationship between stimulus intensity and pain. We applied the model to a large-scale analysis of functional magnetic resonance imaging data (N = 284), focusing on brain mediators of the relationship between noxious stimulus intensity and trial-to-trial variation in pain reports. We identify mediators in both traditional nociceptive pathways and in prefrontal, midbrain, striatal, and default-mode regions unrelated to nociception in standard analyses. The whole-brain mediators are specific for pain versus aversive sounds and are organized into five functional networks. Brain mediators predicted pain ratings better than previous brain measures, including the neurologic pain signature (Wager et al. 2013). Our results provide a broader view of the networks underlying pain experience, as well as novel brain targets for interventions.

Original languageEnglish (US)
Pages (from-to)4204-4219
Number of pages16
JournalCerebral cortex (New York, N.Y. : 1991)
Volume30
Issue number7
DOIs
StatePublished - Jun 1 2020

Keywords

  • brain networks
  • fMRI
  • mediation analysis
  • pain
  • pattern analysis

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience

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  • Cite this

    Geuter, S., Reynolds Losin, E. A., Roy, M., Atlas, L. Y., Schmidt, L., Krishnan, A., Koban, L., Wager, T. D., & Lindquist, M. A. (2020). Multiple Brain Networks Mediating Stimulus-Pain Relationships in Humans. Cerebral cortex (New York, N.Y. : 1991), 30(7), 4204-4219. https://doi.org/10.1093/cercor/bhaa048