Figure 4From: Classification of the extracellular fields produced by activated neural structuresIllustration of the model used for the leading/trailing dipole simulation of the extracellular fields near a plane boundary. R is the distance of the recording electrodes from the center of the axon. The distance between the leading and trailing dipoles is taken as 6 mm. The nerve is stimulated on the left side (negative z values) and propagates toward the left side. The region of high conductivity is on the right z > 0 and the region of lower extracellular conductivity is on the left z < 0.Back to article page