GNU General Public License (GPL) Yes NITRC POS2SPM Yes POS2SPM is a MATLAB-based conversion and formatting tool that can be applied to a number of different probe arrays and channel configurations using either 1 or 2 POS measurement files from an electromagnetic 3D digitizer. This conversion tool outputs the appropriately formatted files necessary to complete spatial registration of functional near-infrared spectroscopy (fNIRS) data with the NIRS-SPM toolbox (SPM5 or SPM8), the SPM-fNIRS toolbox (SPM12), or both. 2016-2-26 POS2SPM Source Code v1 POS2SPM GNU General Public License (GPL), Optical Imaging http://www.nitrc.org/projects/pos2spm/