无条件刺激

发生的事情不过是，无条件刺激与条件刺激，铃声与食物，因为恰巧同时出现而联系在了一起。

So , what happens is the UCS and the CS , the bell and the food , go together because they happen at the same time .

条件反应是对无条件刺激的一种准备。

The conditioned response is a preparation for the unconditioned stimulus .

强化尝试是指条件刺激，与无条件刺激同时出现的时候。

A reinforced trial is when the conditioned stimulus and the unconditioned stimulus go together .

什么是无条件刺激？

What 's the unconditioned stimulus ?

这里的意思是说，无条件刺激与条件刺激的反复匹配，会引起条件反应。

So , the idea here is , repeated pairings of the unconditioned stimulus and the conditioned stimulus will give rise to the response .

咬伤所带来的疼痛感，和有此所带来的痛苦与恐惧，就是无条件刺激和无条件反应。

Now the pain of a bite , being bit , and then the pain and fear of that is an unconditioned stimulus , 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。

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 .

当无条件刺激与条件刺激同时出现时，经典条件作用的效果最强，两种刺激所引起的反应是相同的。

And so classical conditioning should be the strongest when these two are simultaneous and the response to one is the same as the response to the other .

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。

Well , when Pavlov , for instance , started before conditioning there was simply an unconditioned stimulus , the food in the mouth , and an unconditioned response , saliva .

我将坚持到底，倡议德国、荷兰和芬兰出台无条件的财政刺激措施，以抵消欧洲南部国家的紧缩措施。

I would go all the way , and advocate a discretionary fiscal stimulus in Germany , the Netherlands and Finland to offset austerity in the south .