No idea why he wanted to study saliva, but he then discovered something.

他研究唾液分泌的初衷我们不得而知，但他却因为这个研究而有所发现。

耶鲁公开课 - 心理学导论课程节选

Adele Diamond who studies this finds that although kids reach for A, they look for B, as if they know it's there but they can't stop themselves from reaching.

阿黛勒·黛蒙德对此进行了研究,他发现尽管婴儿会将手伸向A处,但会却注视着B处,就好像他们知道物体的位置,但却无法阻止自己的手伸向原处

耶鲁公开课 - 心理学导论课程节选