Table 1.

Motor function examination.

Motor	Behavior	Score
Ambulation	Normal (symmetric and coordinated)	0
	Toes flat under the body while walking with ataxia	1
	Knuckle walking	2
	Movement in lower extremities but unable to knuckle walk	3
	No movement, dragging lower extremities	4
Placing/stepping reflex	Normal (coordinated lifting and placing response)	0
	Weak response	1
	No stepping	2