AUTHOR=Laricchiuta Daniela TITLE=Editorial: Individual differences: from neurobiological bases to new insight on approach and avoidance behavior JOURNAL=Frontiers in Systems Neuroscience VOLUME=9 YEAR=2015 URL=https://www.frontiersin.org/journals/systems-neuroscience/articles/10.3389/fnsys.2015.00125 DOI=10.3389/fnsys.2015.00125 ISSN=1662-5137