Numerical cognition: Unitary or diversified system(s)?
Avishai HenikMoti SaltiAviv AvitanElad Oz-CohenYoel ShilatH Moriah SokolowskiPublished in: The Behavioral and brain sciences (2021)
Many researchers, including Clarke and Beck, describe the human numerical system as unitary. We offer an alternative view - the coexistence of several systems; namely, multiple systems (general magnitude, parallel individuation, and symbolic) existing in parallel, ready to be activated depending on the task/need. Based on this alternative view, we present an account for the representation of rational numbers.