“…It has a prevalence of 1: 7500 to 20000 live births (Morris, Demsey, Leonard, Dilts, & Blackburn, 1988;Strømme, Bjørnstad, & Ramstad, 2002) and is characterized by mild to severe intellectual disability and a defined cognitive profile (Mervis et al, 2000). Individuals with WS are often described as very sociable, empathic and friendly (Dykens & Rosner, 1999;Gosh & Pankau, 1994, but also present high levels of anxiety and fears (Dykens, 2003;Leyfer, Woodruff-Borden, KleinTasman, Fricke, & Mervis, 2006), difficulties when interacting with others (Frigerio et al, 2006), poor social relationships (Davies, Udwin, & Howlin, 1998) and indiscriminate approach to strangers (Jones et al, 2000).…”