This is known as the bystander effect.

这就是著名的旁观者效应。

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Since the original experiments, many studies have explored the bystander effect.

从原始的实验开展以来，许多研究探索了这个旁观者效应。

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The work is to investigate the bystander effect and related signaling factor induced by targeted irradiation on tumor cells.

研究了肿瘤细胞的亚结构在荷能离子照射下所诱导的旁效应及其信号分子。

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Now, we know from the work in the Bystander effect that in general which one are we more likely to help in, when we're the only person or multiple?

我们从旁观者效应的实验中知道,我们在哪种情景上更可能出手相救，一个人，还是有其他人时？

耶鲁公开课 - 心理学导论课程节选

The fact that a dying cancer cell sends out suicide signals to other cells has been dubbed the bystander effect.

BBC: NEWS | Health | Microbeams refine cancer attack

Research by Princeton psychologist John Darley, who pioneered the study of the bystander effect, has found no clear personality profile distinguishes the upstanders from the bystanders.

CNN: What made London Samaritan so brave

In their own extensive analysis of what makes a hero, psychologists Zeno Franco and Philip Zimbardo suggest that people who don't succumb to the bystander effect are sometimes people who generally don't adhere to social norms and conventions.

CNN: What made London Samaritan so brave