Natural numbers (one, two, three, four, etc.) are both simple and profound. Follow a simple algorithm – add 1 to any number n to generate the next number – and you can generate an infinite set of numbers, which are foundational to the development of science and human civilization. What are the origins of human knowledge of the natural numbers? And what is the cognitive architecture that supports their acquisition?

My current research focuses on the conceptual and linguistic basis for representing number.