AUTHOR=Hirota Yuki , Ohtaka-Maruyama Chiaki , Borrell Victor TITLE=Editorial: The Extracellular Environment in Controlling Neuronal Migration During Neocortical Development JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2021.673825 DOI=10.3389/fcell.2021.673825 ISSN=2296-634X