Figure 2

The Green’s function snapshots at three different time points in two (tapering and cylindrical) passive dendritic cables demonstrating the asymmetry in the spread of voltage in the tapering case (a slice of the tapering cable is illustrated in red and that of the cylindrical cable is in dashed black). All the coordinates and parameters are in arbitrary units: \(2R_{a}g_{l}=1\), \(R_{a}=4\pi^{3/2}\), \(\tau=4\), radius of the cylindrical dendrite \(r_{c}=1\), radius of the tapering cable at the origin \(r(x=0)=1\). The tapering dendritic cable belongs to the exponential type with \(\kappa=\pi/3\). The Dirac-delta input is placed at \(x=0\)