来自《耶鲁大学开放课程：心理学导论 第4集 第4集》

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  So, the claim about a phobia is
  比如说 恐惧症就是在狗和恐惧之间
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  that there's a bad association between, say dog and fear,
  或是在飞机 蛇和一些糟糕反应之间
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  or between airplanes or snakes and some bad response.
  存在着消极的联结
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  So, what they do is what's called, "Systematic desensitization,"
  治疗的方法叫做"系统脱敏疗法"
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  which is they expose you to what causes you the fear
  也就是将你暴露在引起恐惧的情境下
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  but they relax you at the same time
  但同时让你放松
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  so you replace the aversive classical conditioned fear
  所以你用更加积极的感觉
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  with something more positive.
  替换了经典条件作用造成的厌恶性恐惧
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  Traditionally, they used to teach people relaxation exercises
  这些方法通常被用来帮助人们做放松练习
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  but that proves too difficult.
  但效果不佳
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  So nowadays they just pump you full of some drug
  所以现在他们让你服用大把的药物
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  to get you really happy
  让你飘飘欲仙