From magnitude to natural numbers: A developmental neurocognitive perspective
Kadosh RC., Walsh V.
In their target article, Rips et al. have presented the view that there is no necessary dependency between natural numbers and internal magnitude. However, they do not give enough weight to neuroimaging and neuropsychological studies. We provide evidence demonstrating that the acquisition of natural numbers depends on magnitude representation and that natural numbers develop from a general magnitude mechanism in the parietal lobes. © 2008 Cambridge University Press.