来自《耶鲁大学开放课程：心理学导论 第18集》

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  So, the mood disorders divide into what's called unipolar depression disorders,
  情感障碍被分成单相抑郁症
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  which is depression only and then bipolar disorders
  就是只有抑郁症的症状 以及双相障碍
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  where the person cycles between depression and mania.
  就是病人在抑郁和狂躁间反复
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  And here are the DSM criteria for major depression,
  这里是DSM对重性抑郁症的判断标准
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  one of the most severe forms of depression. And as I said, the DSM sets up these
  抑郁症中最严重的形式之一 我前面提到过 DSM中包括了
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  relatively observable criteria and how many you have to have
  相对可以观察到的判断标准 症状符合的数量
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  and what absolutely has to be present in order to get the diagnosis.
  为了进行诊断 这些症状必须是目前的
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  So, the first criterion in the DSM for major depression
  DSM中重性抑郁症的第一个标准是
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  is that the individual has to either show sadness
  个体在日常生活中出现悲伤
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  or a diminished interest or pleasure in their usual activities,
  兴趣减弱或快乐减少
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  which is referred to as anhedonia. So, you have to have one
  也就是快感缺失的症状 要满足第一条标准
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  or the other of these to sort of pass the first criterion.
  你得有上述症状中的某一种