... New paper! The intuition that the abstract notion of  number can be represented spatially... Is it a cross-cultural universal? Or contingent on cultural experience? Maybe both! Yupno (Papua New Guinea) adults use space spontaneously to represent linear order, but the way they used it was idiosyncratic and fragile. By contrast, Americans used space to represent number in highly reliable and regimented ways. Take away: Shared, inchoate intuitions about number and space are regimented by lifelong cultural experience. (January 20, 2017)


... New paper! How do kids learn the meaning of words that refer to the past and the future? (Hint: they seem to rely more on the structure of language than on their personal experience.) (Oct 22, 2016)

... New paper! Do experts retrain their visual system so they can literally see the hierarchical structure of algebra in equations? To appear in a special issue on embodied cognition and STEM education. (Oct 11, 2016)

... In Tübingen for a workshop on domain-specific and domain-general processes in numerical and arithmetic cognition. Great talks, great discussions! (Sep 27, 2016)