Current source density (CSD) analysis of electric potentials recorded on a two-dimensional grid.

The MATLAB toolbox allows to apply different variants of CSD to voltage data recorded on 2D regular grids. The toolbox can be used either as a set of MATLAB scripts, or a GUI viewer. The viewer makes it straightforward to import user data (from MATLAB workspace or from a MAT file), to switch between traditional CSD (numerical second derivative) and different variants of inverse CSD, to adjust boundary conditions, and to test different values of the h parameter in case of iCSD.

The toolbox is bundled with three sample datasets: two model datasets (apical and basal excitatory input to a population of pyramidal cells), and one experimental (data recorded in the rat subiculum on an 8 by 8 grid).