1INSEAD, Boulevard de Constance, 77305 Fontainebleau, France, and Decision Neuroscience Group, Cognitive Neuroscience Unit, INSERM, Ecole Normale Supérieure, Paris, France
2Decision Neuroscience Research Group, Department of Marketing, Copenhagen Business School, Frederiksberg, Denmark
3Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
4Division of Computation and Neural Systems, California Institute of Technology, Pasadena, CA, USA