Partisan patterns of compliance with public health measures are a feature of early COVID‐19 responses. In many cases, these differences in behaviour relate to pre‐existing group identities. However, in times of rapid societal change, novel opinion‐based groups can emerge and provide a new basis for partisan identification and divergent collective behaviour. Here, we use network methods to map the emergence of opposing opinion‐based groups and assess their implications for public health behaviour. In a longitudinal study, we tracked public health attitudes and self‐reported behaviour in a sample of UK participants over four time points. Network visualisation reveal a rift in attitudinal alignment over time and the genesis of two distinct groups characterised by trust, or distrust, in science (Study 1a; N = 253). These groups also diverge in public health behaviour. In a brief follow‐up study ( N = 206), we find that this opinion polarization partially reflects underlying societal divides. We discuss implications for opinion‐based group research and public health campaigns.

We investigate experiences of disillusionment as a source of political polarization.Disillusioning experiences motivate a search for meaning, and we propose that people respond by seeking reassurance in political ideologies, reflected in political polarization. We first tested this hypothesis in the context of two major political events: the EU membership referendum in the UK and the 2016 US presidential election. In Study 1, disillusionment stemming from the EU referendum outcome led 'remain' supporters to express more extreme political views. In Study 2, we measured political stance and disillusionment before and after the US presidential election. Political polarization occurred among Clinton supporters, and this was mediated by increased disillusionment levels. In Study 3, we manipulated disillusionment and found that disillusioned participants expressed stronger support for diverging forms of political activism. Consistent with our approach, this effect was mediated by epistemic motivations. Implications regarding the effect of political polarization in society are discussed.

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Encountering stimuli that violate expectations can elicit compensatory behavior. One notable result of such compensatory responses is the derogation of outgroups. The present research investigated for the first time if music that defies expectations fosters the derogation of outgroups. In Study 1, exposure to unconventional relative to conventional music increased wagers placed in favor of an ingroup winning a hypothetical rugby match against an outgroup. In extension of this finding, Study 2 revealed that unconventional music led to lower allocated budgets for support of a minority. Study 3 confirmed that music led to harsher punishments of a hypothetical outgroup offender after being exposed to an unconventional edit of a music piece relative to its regular version. The consequences of these findings are discussed in relation to intergroup relations and theories of meaning maintenance.

Boredom involves a lack meaning. Conversely, religiosity offers people a sense of meaning. Accordingly, we proposed that by imbuing a sense of meaningfulnesss, religiosity leads people to experience less boredom. Furthermore, we hypothesized and tested that by reducing boredom, religiosity indirectly inhibits the search for meaningful engagement. In Study 1, following boring tasks, religious people experienced lower levels of boredom and were less motivated to search for meaning than nonreligious people. We found in Study 2 that religious (vs. non- or less religious) people reported higher perceived meaning in life, which was associated with a reduced tendency to feel bored, and with a reduced need to search for meaning in life. Study 3 confirmed that the meaning in life associated with religiosity was associated with reduced state boredom. Religious participants were again less inclined to search for meaning, which was explained by the relatively low levels of boredom that religious (vs. nonreligious) participants experienced. (PsycINFO Database Record