AUTHOR=Chassy Philippe , Grodd Wolfgang TITLE=Editorial: Abstract Mathematical Cognition JOURNAL=Frontiers in Human Neuroscience VOLUME=9 YEAR=2016 URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2015.00719 DOI=10.3389/fnhum.2015.00719 ISSN=1662-5161