Contents; Preface to the Second Edition; Preface to the First Edition; Introduction; Part One: Our Numerical Heritage; Part Two: Beyond Approximation; Part Three: Of Neurons And Numbers; Part Four: The Contemporary Science Of Number And Brain; Appendix A; Appendix B; Bibliography; Index.;Our understanding of how the human brain performs mathematical calculations is far from complete, but in recent years there have been many exciting breakthroughs by scientists all over the world. Now, in The Number Sense, Stanislas Dehaene offers a fascinating look at this recent research, in an enlightening exploration of the mathematical mind. Dehaene begins with the eye-opening discovery that animals--including rats, pigeons, raccoons, and chimpanzees--can perform simple mathematical calculations, and that human infants also have a rudimentary number sense. Dehaene suggests that this rudime.