By Annie-Rose Strasser | Think Progress
The latest way that Facebook has been peeking into its users’ personal lives may be the most surprising yet: Facebook researches have published a scientific paper that reveals the company has been conducting psychological experiments on its users to manipulate their emotions.
The experiments sought to prove the phenomenon of “emotional contagion” — as in, whether you’ll be more happy if those in your Facebook news feed are. They took place over the week of January 11th-18th, 2012, and targeted 689,003 English-speaking Facebook users.