“…That is, unlike contour-based representations such as those based on curvature extrema (e.g., Richards et al, 1988), skeletal representations can represent shape “configurally,” that is, in terms of the global organization of the entire shape (Kimia, 2003). Empirical support for the importance of skeletal representations has come from psychophysics (Ayzenberg et al, 2019; Burbeck & Pizer, 1995; Firestone & Scholl, 2014; Harrison & Feldman, 2009; Kovács et al, 1998; Lowet et al, 2018; Wang & Burbeck, 1998; Wilder et al, 2016), development (Ayzenberg & Lourenco, 2022), neuroscience (Ayzenberg et al, 2022; Hung et al, 2012; Lescroart & Biederman, 2013), and even visual art (Leymarie & Aparajeya, 2017). Several recent studies have found evidence that shape similarity judgments are particularly affected by differences in skeletal structure.…”