AUTHOR=Kaplan Frederic , Oudeyer Pierre-Yves TITLE=In search of the neural circuits of intrinsic motivation JOURNAL=Frontiers in Neuroscience VOLUME=1 YEAR=2007 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/neuro.01.1.1.017.2007 DOI=10.3389/neuro.01.1.1.017.2007 ISSN=1662-453X