1 Department of Cognitive, Linguistics and Psychological Sciences, Brown University, Providence 02912, USA.
2 Department of Psychology, Ohio State University, Columbus, OH 43210, USA.
3 Department of Neurobiology, Brain Research Weizmann Institute of Science, Rehovot 76100, Israel.
4 ATR Computational Neuroscience Labs, Kyoto 619-0288, Japan; Department of Cognitive, Linguistics and Psychological Sciences, Brown University, Providence 02912, USA.
5 Department of Psychology, Peking University, Beijing 100871, China.
6 ATR Computational Neuroscience Labs, Kyoto 619-0288, Japan; Department of Cognitive, Linguistics and Psychological Sciences, Brown University, Providence 02912, USA. Electronic address: [email protected].