Gray, Russell D. Department of Linguistic and Cultural Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;
Núñez, R. E., d'Errico, F., Gray, R. D., & Bender, A. (2021). The perception of quantity ain't number: Missing the primacy of symbolic reference. Behavioral and Brain Sciences, 44: e199. doi:10.1017/S0140525X21001023.