Figure 5. PTN sensory mapping.
A PTN sensory mapping by a 2 x 4 grid. The PR is not present. The CS is localized by the largest amplitude responses (P37 peak) from G2 and G6. A large positive P37 peak (green arrow) and a large negative N45 peak (red arrow).
PTN, posterior tibial nerve; PR, phase reversal; CS, central sulcus
