About this trial
Several studies have demonstrated that direct currents delivered through the skin at the level of the low-thoracic spinal cord can influence spinal cord function. In human volunteers, anodal low-thoracic transcutaneous spinal direct current stimulation (tsDCS) alters spinal processing of nociceptive inputs. Whether cervical tsDCS is able to do the same is less well known. In this double-blinded, sham-controlled and cross-over trial, the investigators will compare the effects on the nociceptive processing of healthy volunteers of cervical and low-thoracic tsDCS.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
None
Disqualifiers
Known medical conditions (e.g., diabetes, neuropathy, psychiatric disorders, seizure, migraine, pacemaker or other implanted medical devices...)
Use of any medication (except contraception)
Trial design
Crossover
Treatments tested in this trial
cervical a-tsDCS
DeviceAnodal transcutaneous spinal direct current stimulation (a-tsDCS)
thoracic a-tsDCS
DeviceAnodal transcutaneous spinal direct current stimulation (a-tsDCS)
sham tsDCS
DeviceSham transcutaneous spinal direct current stimulation (s-tsDCS)
Treatment groups
Trial outcomes
Primary outcomes
Change in contact-heat evoked potentials amplitude
N2 amplitude
Secondary outcomes
Change in intensity of perception to contact-heat nociceptive stimuli
Numerical rating scale (0-100)
Change in skin temperature
Temperature (°C)
Change in cutaneous blood flow
LDF flow (PU)
Sponsors and contacts
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