Fig. 5
From: Analytic Modeling of Neural Tissue: I. A Spherical Bidomain
On the left is a contour plot of the extracellular potential of the sphere of tissue amid the external potential in the conducting bath. The dashed white line indicates the circumference of the sphere. On the right is a contour plot of the transmembrane potential within the sphere. In both graphs, the black lines are equipotentials and the shade of color corresponds to the magnitude. In the cartesian coordinates on these graphs the current point source is at \((0,5)\) and the current point sink is at \((0,-5)\). The ratio \(\rho_{e}/\rho _{o}=1\)