CO2 laser radiant heat pulses activate C nociceptors in man.
Cerebral potentials evoked by noxious CO2 laser stimuli in man have been referred to nociceptive A delta units. This paper shows 1) that ultra short (5 - 50 ms) high power (less than or equal to 50 W) CO2 laser skin stimuli are able to activate nociceptive C units in man, and 2) that these C nociceptors have to be assumed to terminate in the very superficial skin layer (less than or equal to 300 microns depth).
D002245:Carbon Dioxide; D006358:Hot Temperature; D006801:Humans; D007834:Lasers; D009619:Nociceptors / Q000502:physiology* / Q000528:radiation effects
D002245:Carbon Dioxide