AUTHOR=Lebedev Mikhail A. TITLE=Commentary: Cortical activity in the null space: permitting preparation without movement JOURNAL=Frontiers in Neuroscience VOLUME=11 YEAR=2017 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2017.00502 DOI=10.3389/fnins.2017.00502 ISSN=1662-453X