“…For example, expertise in racquet sports and golf modulates β (i.e., the amount of underestimation) in distance perception (Chang, Wade, Stoffregen, & Ho, 2008), whereas music expertise decreases σ in time perception (Grondin & Killeen, 2009;Madison, 2014). Developmentally, the σ of approximate number estimation improves with age Halberda, Ly, Wilmer, Naiman, & Germine, 2012;Halberda, Mazzocco, & Feigenson, 2008;Odic et al, 2013), and individual differences in σ correlate with math performance prior to and after schooling, even when other cognitive and perceptual abilities are controlled for Libertus, Feigenson, & Halberda, 2011;Libertus, Odic, & Halberda, 2012).…”