“…More specifically, some researchers have proposed that humans acquire the meaning of number symbols by mapping them directly onto their non-symbolic counterparts, thereby forging a direct link between the preexisting AMS and the SNS by which the two systems become systematically integrated over developmental time (Feigenson, Dehaene, & Spelke, 2004;Piazza, 2011). However, a growing body of behavioral and neuroimaging research has begun to challenge the notion of a shared representational system for symbolic and non-symbolic processing (Bulthé, Smedt, & Op de Beeck, 2014;Lyons, Ansari, & Beilock, 2012Lyons, Bugden, Zheng, Jesus, & Ansari, 2018;Matejko & Ansari, 2016;Mussolin, Nys, Content, & Leybaert, 2014;Sasanguie, Defever, Maertens, & Reynvoet, 2014). More specifically, some have suggested that symbolic number skills develop independently from the AMS in childhood Matejko & Ansari, 2016;Mussolin et al, 2014;Sasanguie et al, 2014) and that these two systems remain distinct in adulthood (Lyons, Ansari, & Beilock, 2012).…”