When Pavlov put food powder in the dog's mouth and saliva was generated, that's an unconditioned stimulus giving rise to an unconditioned response.
巴甫洛夫给狗喂食,狗会分泌唾液,这就是无条件刺激引起了无条件反应。
Well, when Pavlov, for instance, started before conditioning there was simply an unconditioned stimulus, the food in the mouth, and an unconditioned response, saliva.
比如,在条件作用形成之前,只是简单的存在着无条件刺激,即食物,以及无条件反应,即唾液。
Pavlov, when he started this research, had no interest at all in learning.
在研究的最初,巴甫洛夫,对学习行为毫无兴趣。
This is Pavlov's famous dog and it's an example of scientific serendipity.
这便是巴甫洛夫的那条著名的狗,这是一个科学研究中的意外。
It was thought up by Pavlov.
经典条件作用是巴甫洛夫提出的。
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