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Pain-related evoked potentials are modulated across the cardiac cycle

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journal contribution
posted on 2014-07-29, 13:24 authored by Louisa Edwards, Koji Inui, Christopher Ring, Xiaohong (1) Wang, Ryusuke Kakigi
Evidence suggests that the arterial baroreceptors modulate pain. To examine whether cortical processing of nociception is modulated by natural variations in arterial baroreceptor stimulation during the cardiac cycle, peak-to-peak amplitudes of the N2–P2 pain-related potential and pain ratings were recorded in response to noxious laser stimulation at different times during the cardiac cycle in 10 healthy males. Significant variations in the N2–P2 amplitudes occurred across the cardiac cycle, with smaller amplitudes midcycle, indicating that cortical processing of nociception was attenuated during systole compared to diastole. Pain ratings did not vary across the cardiac cycle. These data support the hypothesis that arterial baroreceptors modulate the processing of nociception during each cardiac cycle.

History

School

  • Sport, Exercise and Health Sciences

Published in

PAIN

Volume

137

Issue

3

Pages

488 - 494 (7)

Citation

EDWARDS, L. ... et al, 2008. Pain-related evoked potentials are modulated across the cardiac cycle. Pain, 137 (3), pp. 488 - 494.

Publisher

Elsevier / © International Association for the Study of Pain

Version

  • AM (Accepted Manuscript)

Publication date

2008

Notes

This is the author’s version of a work that was accepted for publication in Pain. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Pain, vol 137, issue 3, 2008, pp. 488-494, DOI: 10.1016/j.pain.2007.10.010

ISSN

0304-3959

Language

  • en

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