Fig. 4.

Multi-cellular simulation protocol. In order to set up a multicellular grid, the user adds or subtracts rows and columns of connected cells by navigating the top buttons (+Row, −Row, +Column, −Column). Ten cells connected horizontally are shown here. The user may specify the mathematical model for each node and whether or not to stimulate/record data by selecting nodes/rows/columns (click and drag may be used to specify a region.). On Windows platforms, the row or column numbers of selected regions become bold (number bold does not happen on Mac, but user may still click on a region and specify/toggle node properties).