AUTHOR=Puri Rohan , Hinder Mark R. TITLE=Response: “Commentary: Duration-dependent effects of the BDNF Val66Met polymorphism on anodal tDCS induced motor cortex plasticity in older adults: a group and individual perspective” JOURNAL=Frontiers in Aging Neuroscience VOLUME=8 YEAR=2016 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2016.00028 DOI=10.3389/fnagi.2016.00028 ISSN=1663-4365