Figure 7. The conduction velocity slowing (latency increasing) effects of sub-blocking concentrations of lidocaine in dorsal root and vagus nerve unmyelinated, intermediate, and myelinated axon conduction velocity groups. The number of axons tested is indicated above each bar. Lidocaine effects on conduction velocity were significantly different between myelinated and unmyelinated dorsal root axons (**P < 0.01) and between vagal and dorsal root axons in the intermediate conduction velocity group (*P < 0.002).