Social media's influence on momentary emotion based on people's initial mood: an experimental design

Can you think of a meme that made you laugh or a political post that made you angry? These examples illustrate how social media use (SMU) impacts how people feel. Similarly, how people feel when they initiate SMU may impact the emotional effects of SMU. Someone feeling happy may feel more positively during SMU, whereas someone feeling sad may feel more negatively. Using an experimental design, we examined whether following SMU, those in a happy mood would experience increases in positive affect (PA) and those in a sad mood would experience increases in negative affect (NA). A large sample of college students (N = 703) were randomly assigned to a happy, sad, or neutral mood induction before SMU. PA and NA were assessed at baseline, post-mood induction, and after SMU. Contrary to hypotheses, after SMU, people in happy moods experienced decreases in PA, and those in sad moods experienced decreases in NA, reflecting SMU having a dampening effect on emotions. PA and NA were significantly lower after SMU compared to baseline and did not vary by condition. How young adults feel when they log onto SMU matters in understanding how SMU impacts PA and NA, but on average, emotional experiences are dampened.