caa a22 4500 469055103 CHVBK 20180323132841.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00376441 doi (NATIONALLICENCE)springer-10.1007/BF00376441 Segmental inhibition of laser-evoked brain potentials by ipsi- and contralaterally applied cold pressor pain [Elektronische Daten] [Lars Arendt-Nielsen, Karl Gotliebsen] Summary: An experiment was designed to quantify the inhibitory effect of cold pressor pain (ice water immersion) on brain potentials evoked by acute laser-induced pain. One hand (including the C7 dermatome) was immersed into ice water and simultaneously the laser-evoked brain potentials were elicited consecutively from the right and left lower forearms within the C7 dermatomes. The cold pressor pain was continuously rated on a visual analogue scale (VAS). The size of the averaged brain potentials evoked from the ipsi- and contralateral C7 dermatomes were reduced significantly during cold pressor pain. The largest decrease was obtained for the potentials evoked within the C7 dermatome ipsilateral to the cold pressor pain. The size (power) of the brain potentials to individual stimuli could be measured and was correlated to the intensity of the cold pressor pain (VAS score). During the onset phase of cold pressor pain, there was a decrease in power of the individual brain potentials evoked from the C7 dermatome contralateral to the cold pressor pain but the potentials, evoked from the C7 dermatome ipsilateral to cold pressor pain, were decreased more. The overall rating of the laser-induced pain intensity showed that the perceived intensity was lowest when evoked from the dermatome concurrently exposed to cold pressor pain. Springer-Verlag, 1992 Cold nationallicence Laser nationallicence Human nationallicence Pain nationallicence Evoked potentials nationallicence Segmental nationallicence Ipsilateral nationallicence Contralateral nationallicence Inhibition nationallicence Arendt-Nielsen Lars Department of Medical Informatics, Laboratory for Experimental Pain Research, Aalborg University, Fredrik Bajersvej 7D, DK-9220, Aalborg, Denmark aut Gotliebsen Karl Department of Medical Informatics, Laboratory for Experimental Pain Research, Aalborg University, Fredrik Bajersvej 7D, DK-9220, Aalborg, Denmark aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/1(1992-01-01), 56-61 0301-5548 64:1<56 1992 64 421 https://doi.org/10.1007/BF00376441 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00376441 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Arendt-Nielsen Lars Department of Medical Informatics, Laboratory for Experimental Pain Research, Aalborg University, Fredrik Bajersvej 7D, DK-9220, Aalborg, Denmark aut NATIONALLICENCE 700 1- Gotliebsen Karl Department of Medical Informatics, Laboratory for Experimental Pain Research, Aalborg University, Fredrik Bajersvej 7D, DK-9220, Aalborg, Denmark aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/1(1992-01-01), 56-61 0301-5548 64:1<56 1992 64 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer