AUTHOR=Hinkley Leighton B. N., Dale Corby L., Cai Chang, Zumer Johanna, Dalal Sarang, Findlay Anne, Sekihara Kensuke, Nagarajan Srikantan S. TITLE=NUTMEG: Open Source Software for M/EEG Source Reconstruction JOURNAL=Frontiers in Neuroscience VOLUME=14 YEAR=2020 URL=https://www.frontiersin.org/articles/10.3389/fnins.2020.00710 DOI=10.3389/fnins.2020.00710 ISSN=1662-453X ABSTRACT=Neurodynamic Utility Toolbox for Magnetoencephalo- and Electroencephalography (NUTMEG) is an open-source MATLAB-based toolbox for the analysis and reconstruction of magnetoencephalography/electroencephalography data in source space. NUTMEG includes a variety of options for the user in data import, preprocessing, source reconstruction, and functional connectivity. A group analysis toolbox allows the user to run a variety of inferential statistics on their data in an easy-to-use GUI-driven format. Importantly, NUTMEG features an interactive five-dimensional data visualization platform. A key feature of NUTMEG is the availability of a large menu of interference cancelation and source reconstruction algorithms. Each NUTMEG operation acts as a stand-alone MATLAB function, allowing the package to be easily adaptable and scripted for the more advanced user for interoperability with other software toolboxes. Therefore, NUTMEG enables a wide range of users access to a complete “sensor-to- source-statistics” analysis pipeline.