研究人员注意到，海豚在确定答案时会很着急地按下踏板，但在难度高的测验中则表现出犹豫。
The researcher noted that the dolphin is quite eager to press the paddle when it was sure of the answer, but exhibited hesitation during difficult trials.
在研究过程中，法格林和她的研究小组让356名妇女中的175人估计了女性患乳腺癌的平均比率，然后又告知所有的人，正确答案应该是13%。
During the study, Fagerlin and her team asked 175 out of 356 women to estimate the average risk of breast cancer, then told all the women that the actual risk was 13 percent.
近几年来，心理学家和研究员埋头在重重数据中，试图发掘出先前留给哲学家们的问题的答案：“是什么是我们快乐？”
In the last few years, psychologists and researchers have been digging up hard data on a question previously left to philosophers: What makes us happy?
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