FACEBOOK conducts secret psychology experiment on users' emotions

Facebook conducted secret psychology experiment on users' emotions

Facebook has conducted a secret massive psychology experiment on its users to find out how they respond to positive and negative messages - without telling participants

A Facebook employee arrives at a presentation by the California-based company
A Facebook employee arrives at a presentation by the California-based company Photo: GETTY IMAGES

Over 600,000 Facebook users have taken part in a psychological experiment organised by the social media company, without their knowledge.

Facebook altered the tone of the users' news feed to highlight either positive or negative posts from their friends, which were seen on their news feed.

They then monitored the users' response, to see whether their friends' attitude had an impact on their own.

"The results show emotional contagion," wrote a team of Facebook scientists, in a paper published by the PNAS journal - Proceedings of the National Academy of Scientists of the United States.

"When positive expressions were reduced, people produced fewer positive posts and more negative posts; when negative expressions were reduced, the opposite pattern occurred. These results indicate that emotions expressed by others on Facebook influence our own emotions, constituting experimental evidence for massive-scale contagion via social networks."

Facebook were able to carry out the experiment because all users have to tick a box agreeing to their terms and conditions. These include "internal operations, including troubleshooting, data analysis, testing, research and service improvement."...REST OF IT HERE

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