Thermonociceptive interaction: interchannel pain modulation occurs before intrachannel convergence of warmth.

@article{Cataldo2019ThermonociceptiveII,
  title={Thermonociceptive interaction: interchannel pain modulation occurs before intrachannel convergence of warmth.},
  author={Antonio Di Cataldo and Elisa Raffaella Ferr{\`e} and Patrick Haggard},
  journal={Journal of neurophysiology},
  year={2019},
  volume={121 5},
  pages={
          1798-1808
        }
}
Nonnoxious warmth reduces both perceived pain intensity and the amplitude of EEG markers of pain. However, the spatial properties of thermonociceptive interaction, and the level of sensory processing at which it occurs, remain unclear. We investigated whether interchannel warmth-pain interactions occur before or after intrachannel spatial summation of warmth. Warm stimuli were applied to the fingers of the right hand. Their number and location were manipulated in different conditions. A… CONTINUE READING
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