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Writing on behalf of 27 ethicists from across North America, �ʹ�����’s philosopher Udo Schuklenk and a team of five co-authors have written a commentary for the journal Nature on a controversial Facebook study.

The study manipulated the news feeds of 310,000 users to feature more content that was deemed either positive or negative by automated software. The results of this study showed that users who were exposed to less positive content very slightly decreased their own use of positive words and increased their use of negative words.

Dr. Schuklenk’s team believes the study did not violate anyone’s privacy and Facebook’s attempt to improve the user experience is consistent with its relationship with its consumers, despite many users’ concerns that Facebook “purposefully messed with people’s minds.”