Table 6.

Proportion of children who demonstrated various coded behaviors during the Surprise Box task as a function of diagnostic group

Coded behavior	Down syndrome	Williams syndrome
	Joyful condition	Joyful condition
Acknowledged/Attended	8/11	7/11
Imitated	0/11	0/11
Touched	10/11	11/11
Demonstrated a response	9/11	11/11
	Fearful condition	Fearful condition
Acknowledged/Attended	2/9	3/9
Imitated	0/9	0/9
Touched	6/9	6/9
Demonstrated a response	6/9	5/9