Early development of children with Williams syndrome.

Developmental observations in ten young children with Williams syndrome (1-6 years old) are presented from developmental tests, symbolic play sessions and play sessions with a special educator following the non-directive Montessori approach. There is a considerable individual variability in performance. Overall, the children are engaged in goal-directed activities for more than 35% of the time during play sessions. Overactivity and distractability seem to be more age-dependent and situation-specific than thought before. Developmental interventions may include play sessions following the Montessori approach.