然后研究人员在一年中连续观察这些病人的脑活动和肢体感觉，并与一组服用安慰剂的病人的检查结果相对照。

The researchers then studied those patients' brain activity and bodily sensations over the course of a year, comparing what they found with the results from a group of amputees treated with a placebo.

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研究者比较了这些重新压抑的病人、另外7个没有发生压抑状态的病人以及另一组一直都很正常，从没有发生过精神压抑的正常人之间的脑部活动。

The researchers compared the brain activity of relapsing patients against those who remained healthy and against another group of people who had never been depressed.

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该组研究对象中的226人依然在世，其中161人在研究中仍处于活动状态，即每两年回答一份调查问卷，并在每15年接受一次个人访问。

Of this group, 226 are alive and 161 are still active in the study, which requires the men to answer questionnaires every two years and to be interviewed personally every 15 years.

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