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Second pain event related potentials to argon laser stimuli: recording and quantification.
  1. L Arendt-Nielsen
  1. Department of Medical Informatics, Aalborg University, Denmark.


    A non-invasive technique for quantification of argon laser induced burning second pain (C-fibre) is suggested. Using frequency analysis event related responses to burning pain can be detected in the EEG interval 1-2 seconds after laser stimulation. When the laser stimulus induced a burning pain perception, the power from 0.5-2.5 Hz of the EEG interval 1-2 seconds after stimulation differed significantly from the power calculated from the same time interval when no burning pain was perceived.

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