Stanislas Dehaene is Chair of Experimental Cognitive Psychology at the Collège de France and Director of NeuroSpin, France's advanced brain imaging research center. He is the author of The Number Sense, Reading in the Brain, Consciousness and the Brain,and How We Learn. Together his books have been translated into more than fifteen languages.

Jean-René Duhamel is Director of Research, Institute of Cognitive Science at CNRS, Lyon.

Marc D. Hauser is Professor of Psychology and Codirector of the Mind, Brain, and Behavior Program at Harvard University.

Giacomo Rizzolatti is Professor of Human Physiology at the University of Parma.