This might be of interest to you.
Kramer,
Adam D. I., Jamie E. Guillory, and Jeffrey T. Hancock. 2014.
“Experimental Evidence of Massive-Scale Emotional Contagion through
Social Networks.” Proceedings of the National Academy of Sciences 111 (24):
8788–90. doi:10.1073/pnas.1320040111.
Experimental evidence of massive-scale emotional contagion through social
networks
Experimental evidence of massive-scale emotional contagi...
Experimental evidence of massive-scale emotional contagion through social
networks Adam D. I. Kramera,1, Jamie E. Guilloryb, and Jeffrey T. Hancockc,d
View on www.pnas.org Preview by Yahoo
Significance
We show, via a massive (N = 689,003) experiment on Facebook, that emotional
states can be
transferred to others via emotional contagion, leading people to experience the
same emotions without
their awareness. We provide experimental evidence that emotional
contagion occurs without direct interaction between people
(exposure to a friend expressing an emotion is sufficient), and in the
complete absence of nonverbal cues.
Abstract
Emotional states can be
transferred to others via emotional contagion, leading people to
experience the same emotions without their awareness. Emotional contagion is
well established in laboratory experiments, with people transferring
positive and negative emotions to others. Data from a
large real-world social network, collected over a 20-y period suggests
that longer-lasting moods (e.g., depression, happiness) can be transferred
through networks [Fowler JH, Christakis NA (2008) BMJ 337:a2338], although the
results are controversial. In an experiment
with people who use Facebook, we test whether emotional contagion occurs
outside of in-person
interaction between individuals by reducing the amount of emotional
content in the News Feed. 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.
This work also suggests that, in contrast to
prevailing assumptions, in-person interaction and nonverbal cues are not
strictly necessary for emotional contagion, and that the
observation of others’ positive experiences constitutes a positive
experience for people.
* computer-mediated communication
* social media
* big data
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