Output from the neuronal population.

<p>Transmembrane currents into selected extracellular volumes, including (column <b>A</b>) the subvolume containing the neuronal somata (<i>n</i> = 3), (column <b>B</b>) the subvolume containing the trunk of the apical dendrite (<i>n</i> = 7), and (column <b>C</b>) the subvolume where the apical dendrites branched out (<i>n</i> = 13). Currents were subdivided into ion specific currents (row <b>1</b>–<b>4</b>) and the capacitive current (row <b>5</b>). The sum of all currents into a subvolume <i>n</i> is shown in row <b>6</b>. The location of the midpoint of a neural segment determined which ECS subvolume <i>n</i> it belonged to, and currents were summed over all neural segments (of all neurons) that occupied a given ECS-subvolume (<i>n</i>). The transmembrane currents were defined as positive when crossing the membrane in the outward direction. The total transmembrane currents of the neuron as a whole (summed over all <i>N</i> − 2 subvolumes) were also calculated (column <b>D</b>). Results are shown for a 7 second excerpt of simulations.