22q11.2 Deletion Syndrome (22q11DS) is a common microdeletion disorder associated
with mild to moderate intellectual disability and specific neurocognitive deficits,
particularly in visual-motor and attentional abilities. Currently there is evidence that
the visual-motor profile of 22q11DS is not entirely mediated by intellectual disability and
that these individuals have specific deficits in visual-motor integration. However, the
extent to which attentional deficits, such as vigilance, influence impairments on visual
motor tasks in 22q11DS is unclear. This study examines visual-motor abilities and reaction
time using a range of standardised tests in 35 children with 22q11DS, 26 age-matched
typically developing (TD) sibling controls and 17 low-IQ community controls. Statistically
significant deficits were observed in the 22q11DS group compared to both low-IQ and TD
control groups on a timed fine motor control and accuracy task.