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Published online 22 December 2006 | Nature | doi:10.1038/news061218-17

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Virtual reality shocker

Torturing even a lifeless computer character makes volunteers upset.

Researchers have recreated in a virtual world one of the most extreme social experiments ever performed in the real world. The results suggest that virtual environments could provide a way to explore human nature in ways that ethical concerns could make impossible to do for real.

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