这个区域应该用一个或两个指头来刺激，动作就像是“过来”的手势。
This area should be stimulated with one or two fingers making a "come here" motion.
视觉健康者增加一个视觉刺激项目，他们观看手部动作短片，并用手势做出来。
Sighted subjects completed an additional visual version of the stimuli in which they watched movies of the hand-executed actions and performed the motor pantomime.
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