He says being laughed at causes a fear response in the victim.

VOA: special.2009.11.17

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

耶鲁公开课 - 心理学导论课程节选

So, the claim about a phobia is that there's a bad association between, say dog and fear, or between airplanes or snakes and some bad response.

比如说，恐惧症就是在狗和恐惧之间,或是在飞机，蛇和一些糟糕反应之间，存在着消极的联结。

耶鲁公开课 - 心理学导论课程节选

Fear of death isn't actually an appropriate response to death.

对死亡感到恐惧是正常反应。

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What would be the conditioned response? Fear. Excellent.

条件反应又是什么，恐惧，很好。

耶鲁公开课 - 心理学导论课程节选