AUTHOR=Colizoli Olympia , Murre Jaap M. J. , Rouw Romke 

TITLE=Defining (trained) grapheme-color synesthesia

JOURNAL=Frontiers in Human Neuroscience

VOLUME=8

YEAR=2014

URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2014.00368

DOI=10.3389/fnhum.2014.00368

ISSN=1662-5161