Behavioral features of Williams Beuren syndrome compared to Fragile X syndrome and subjects with intellectual disability without defined etiology

▶ Definition the psychopathological profile of WBS in comparison to FXS and IDNS. ▶ High prevalence of anxiety, depression and attention problems in WBS. ▶ Delinquent and aggressive behaviors and externalizing problems are rare in WBS patients. ▶ Behavioral problems are secondary to the intellectual disability and not specific of the syndrome. ▶ Associations between IQ and anxiety items.