In a study they conducted, each subject was told that other subjects were forming a group-and taking a vote on whether she could join.

在他们进行的一项研究中，每一个研究对象都被告知其他研究对象正组成一个团体——并且正在投票决定她是否能加入。

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And once the worrying women started making errors, they made them at a higher rate than the other subjects, suggesting that the extra effort the anxiety caused was taking a toll, Dr. Moser says.

WSJ: Anxiety Can Bring Out the Best