Williams syndrome (WS) is a neurodevelopmental disorder with genetic origin due to microdeletion
of approximately (28) genes on chromosome (7), individuals with WS have distinctive medical,
cognitive, and behavioral characteristics. In this article, many studies have been reviewed to present
a neurocognitive profile for these individuals. Cognitive functions in WS individuals in the current
study have been classified into (1) executive functions such as, (working memory, cognitive flexibility,
planning, attention, inhibition) (2) and non-executive functions such as (memory, intelligence level,
expressive vocabularies, face recognition, and visuospatial abilities). Adding to cognitive functions, the
study reviewed the neurological aspects that support cognitive abilities and discussed abnormalities in
cerebral regions that responsible for these cognitive impairments.
