AUTHOR=Hansen Niels Chr. , Dietz Martin J. , Vuust Peter TITLE=Commentary: Predictions and the brain: how musical sounds become rewarding JOURNAL=Frontiers in Human Neuroscience VOLUME=11 YEAR=2017 URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2017.00168 DOI=10.3389/fnhum.2017.00168 ISSN=1662-5161