Figure 5.

Two oppositely directed quasi-solitons (solitary waves) along an infinitely long neuronal branchlet result in a head-on collision. The collision occurred by linear superposition of the solitary waves. To differentiate the amplitudes of the traveling wave solutions expressed in terms of the membrane potential U*(X, X_{p 1} + X_{p 2}; T) obtained from (12) as a function of electrotonic distance (X) and dimensionless time (T), the quasi-soliton moving to the right was normalized by U*(X_{p 1}, X_{p 1} + X_{p 2}; 0) and the quasi-soliton moving to the left was half-normalized by 2U*(X_{p 2}, X_{p 1} + X_{p 2}; 0). Both quasi-solitons propagate with a dimensionless conduction velocity of ν = 1.506. Parameters used were: γ = 0.001, X_{p 1} = 4.398, X_{p 2} = 5.602.