Facebook reveals news feed experiment to control emotions
Facebook, the world’s biggest social networking site, is facing a storm of protest after it revealed it had discovered how to make users feel happier or sadder with a few computer key strokes.
It has published details of a vast experiment in which it manipulated information posted on 689,000 users’ home pages and found it could make people feel more positive or negative through a process of “emotional contagion”.
In a study with academics from Cornell and the University of California, Facebook filtered users’ news feeds – the flow of comments, videos, pictures and web links posted by other people in their social network. One test reduced users’ exposure to their friends’ “positive emotional content”, resulting…
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