Figure 7.
Effect of peak synaptic conductance and virtual cylinder radius on amplitude of the simulated neurophonic. Abscissa in all panels is value of Gsyn parameter in Equation 14. A, Maximum amplitude of Ve in response to a single monolateral excitatory synaptic event. B, Maximum amplitude of EPSP measured in the dendrite that received synaptic input. C, Maximum amplitude of EPSP measured in the soma of the neuron model. D, Maximum amplitude of excitatory synaptic current. Excitatory current (an inward current) is considered negative by convention, but here we plot its amplitude as a positive value. Colored lines indicate the radius of the virtual cylinder. In all panels, maxima are computed over all spatial locations. Simulation results presented in other figures use Gsyn = 10 mS/cm2 and virtual cylinder radius 11 μm, unless noted otherwise.