ROBO1 has well-established roles in brain development (Hannula-Jouppi et al., 2005; St Pourcain et al., 2014), and has been implicated in dyslexia as well as phonological short-term memory (Bates et al., 2011; Hannula-Jouppi et al., 2005), while its homologue ROBO2 has been linked with expressive vocabulary during early language acquisition (St Pourcain et al., 2014). This evidence concerns the gene ROBO1 and dyslexia.