Figure 4

Relationship between CPM effect and NP characteristics. Partial correlations between CPM effect and NP characteristics (corrected for age and sex). (a, b) Scatter plots of NP intensity and extent with CPM effect in SCI-NP subjects (n = 12). CPM effects are described as negative and positive numbers, which indicate pain inhibition and facilitation, respectively. CPM, conditioned pain modulation; NP, neuropathic pain; NRS, numerical rating scale; TS-CPM, test stimulus under CPM; TS-Sham, test stimulus under Sham.