“…WS is associated with a characteristic set of phenotypic features which include mild to moderate intellectual disability, a distinctive cognitive profile, facial dysmorphology, common personality traits, cardiovascular problems such as supravalvar aortic stenosis (SVAS), and connective tissue disorders (Morris, 2010). In addition, anxiety symptoms (Leyfer, Woodruff-Borden, Klein-Tasman, Fricke, & Mervis, 2006;Leyfer, Woodruff-Borden, & Mervis, 2009), negative reactivity John & Mervis, 2010;Tomc, Williamson, & Pauli, 1990;Udwin, Howlin, Davies, & Mannion, 1998), problems with self-regulation (Arnold, Yule, & Martin, 1985;Davies et al, 1998;Dilts, Morris, & Leonard, 1990;Gosch & Pankau, 1994;Tomc et al, 1990;Udwin, 1990;, and sensory modulation difficulties (Dilts et al, 1990;Gallo, Klein-Tasman, Gaffrey, & Curran, 2008;John & Mervis, 2010) are common. As with most phenotypes, substantial variability exists in the expression of these characteristics (Morris, 2010).…”