AUTHOR=Gershman Samuel J. , Jones Carolyn E. , Norman Kenneth A. , Monfils Marie-H. , Niv Yael TITLE=Corrigendum: Gradual extinction prevents the return of fear: implications for the discovery of state JOURNAL=Frontiers in Behavioral Neuroscience VOLUME=15 YEAR=2021 URL=https://www.frontiersin.org/journals/behavioral-neuroscience/articles/10.3389/fnbeh.2021.786900 DOI=10.3389/fnbeh.2021.786900 ISSN=1662-5153