The next speaker in this Social Media & Society 2024 session is Abby Youran Qin, whose focus is on affective polarisation. She references the famous Adamic & Glance study that showed strong homophily between Republican and Democrat bloggers, respectively, and suggests that this can also be seen as an indication of affective polarisation.

Similarly, there is plenty of evidence of spatial polarisation in the United States, where certain states and counties are regarded as dominated by Republicans or Democrats; this points to a spatial sorting and geographic clustering of political partisans. How might we connect such individual-level homophily and place-level …

The next speaker in this Social Media & Society 2024 session is Nic DePaula, whose interest is in the association between local and regional risk levels and social media use and engagement in the US in the context of COVID-19. This is in the broader context of public health communication on social media, which is now common if unevenly distributed across agencies, due to various internal and external factors.

As public health threats rise in a given area, does social media activity by and engagement with health agencies follow? Two dynamics could be present here: there may be more activity …

The next speaker in this Social Media & Society 2024 session is Felipe Soares, whose focus is on asymmetric polarisation on Facebook in Brazil. He begins by noting the difficulty in defining polarisation, given the wide range of definitions available in the literature, and points to our work at QUT in developing the concept of destructive polarisation as a way to determine whether the polarisation that we might observe in any given context is in fact a problem at all.

Further, polarisation is often observed to be asymmetric, with one side of politics considerably more extreme than the other. This …

And the final speaker in this Social Media & Society 2024 conference session is Victoria O’Meara, whose focus is on the anti-vaccine ‘Children’s Health Defense’ group, founded in 2016 and directed by Robert F. Kennedy Jr. until 2013; it is a key driver of health-related mis- and disinformation campaigns in the context COVID-19 and beyond.

CHD was identified as a key disinformation superspreader by the Center for Countering Digital Hate, and removed from Facebook and Instagram in August 2022 for repeatedly violating its terms of service on misinformation and conspiracy theories. RFK Jr. was similarly deplatforming, but has been reinstated …