The effect of high-frequency conditioning stimulation of human skin on reported pain intensity and event-related potentials
Number of pages
SourceJournal of Neurophysiology, 108, 8, (2012), pp. 2276-2281
Article / Letter to editor
Display more detailsDisplay less details
SW OZ DCC SMN
Journal of Neurophysiology
SubjectBiological psychology; DI-BCB_DCC_Theme 3: Plasticity and Memory; NCEBP 2: Evaluation of complex medical interventions; Biologische psychologie; DCN MP - Plasticity and memory NCEBP 7: Effective primary care and public health
High-frequency conditioning electrical stimulation (HFS) of human skin induces an increased pain sensitivity to mechanical stimuli in the surrounding nonconditioned skin. The aim of this study was to investigate the effect of HFS on reported pain sensitivity to single electrical stimuli applied within the area of conditioning stimulation. We also investigated the central nervous system responsiveness to these electrical stimuli by measuring event-related potentials (ERPs). Single electrical test stimuli were applied in the conditioned area before and 30 min after HFS. During electrical test stimulation, the reported pain intensity (numerical rating scale) and EEG (ERPs) were measured. Thirty minutes after conditioning stimulation, we observed a decrease of reported pain intensity at both the conditioned and control (opposite arm) skin site in response to the single electrical test stimuli. In contrast, we observed enhanced ERP amplitudes after HFS at the conditioned skin site, compared with control site, in response to the single electrical test stimuli. Recently, it has been proposed that ERPs, at least partly, reflect a saliency detection system. Therefore, the enhanced ERPs might reflect enhanced saliency to potentially threatening stimuli.
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.