Fig. 2. Response obtained with a low intensity molecular layer stimulation. (A) Left: reconstruction of a medium ganglionic (MG) layer cell showing its extension through the layers of ELL, as a reference for the events shown in the right panel. mol, molecular layer; gang, ganglionic layer; plex, plexiform layer; gran, granular layer. Right: one-dimensional current-source density (CSD) pseudocolor map with field potential recordings superimposed. Green to red are sinks and green to blue are sources as is shown with the color bar on the right. (B) Plot of current density evolution with time, for the two locations marked by white dotted lines in the CSD pseudocolor map in A: at 550 mm(upper line) in the molecular layer, and at 110 mm (bottom line) in the ganglionic layer. A second order exponential function (red dotted line) was fitted to the molecular layer CSD profile decay and the corresponding time constants ₁ and ₂ are shown above the graph.