I can see that you’re happy but you’re not my friend: Relationship closeness and affect contagion

In the current study, I experimentally examined whether close relationship between a sender displaying affect and a receiver observing it fosters concordant affective reactions to the sender’s emotional displays. I recruited participants as pairs of either friends or strangers. One person served as a sender and the other person served as a receiver. The sender watched a happy or sad videotaped man, whereas the receiver observed him/her on the computer screen in a separate room. The results confirmed that the sender caught happiness displayed by the videotaped man and then passed it along to the receiver but only when the pair consisted of friends. When the pair consisted of strangers, this “second-hand” happiness contagion was blocked. The spread of sadness, however, remained unaffected by relationship closeness. This effect was not driven by the receiver’s ability to correctly decode the sender’s emotional expression