The cutaneous sensory threshold is not uniform in all body areas. depends, other factors being equal, on the accessibility of the sensory receptors, the threshold measurement would be primarily influenced by the thickness of the skin layer between the electrode and the sensory receptors.
The analgesic effects after DBS do not seem to depend on short-duration changes in cutaneous sensory thresholds in dystonia patients and may be related to changes in the central processing of nociception 1).