This surprising psychology study finds that if one person in a group repeats the same opinion three times, it has 90% of the effect of three different people in that group expressing the same opinion.

这项令人吃惊的心理学研究发现如果群体里的一个人重复他的观点三次，那么与三个不同的人阐述同一个观点相比，前者有后者90%的效果。

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Sociology was not yet a discipline, but before the century was out, mass idealisation of this sort would lend itself to the scientific study of charisma and group psychology.

虽然社会学还不成为一门学科，但在一个世纪前它就已出现了，并且这种大量出现的理想化（构想）将有助于在感召力领域和集团心理学领域的科学研究。

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The writers spoke with people who study culture and group behavior, as well as those who study the psychology of individuals. And they talked with animal experts like zookeepers.

编剧们采访了研究文化和群体行为的人以及研究个体心理的人。他们也采访了动物园管理员这样的动物专家。

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Sociology was not yet a discipline, but before the century was out, mass idealisation of this sort would lend itself to the scientific study of charisma and group psychology.

ECONOMIST: Garibaldi

Dr Roi Cohen Kadosh, study author from the department of experimental psychology at the University of Oxford, said the noise stimulation group showed improvements in cognitive and brain functions compared with the control group.

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