Author response image 2. 40 current source density distribution patterns on the Y-shaped morphology: ground truth, skCSD reconstruction from 4x4 and 4x16 electrodes, and the L1 error for each pattern.

The optimal parameters for the skCSD reconstruction were chosen by cross-validation for the whole series of patterns. The reconstruction error is higher for patterns with sharp peaks, in this case the skCSD method smooths these peaks in space.