The final session today at the AoIR 2025 conference starts with my excellent QUT colleague Tariq Choucair, who begins by introducing the challenge of assessing polarisation: there are many different definitions of polarisation, which require different measures of assessment. Most current methods fail to sufficiently distinguish between these types of polarisation.

Tariq is therefore proposing a new approach to assessing polarisation, which he has applied to the study of national electoral contests in Australia, Brazil, Denmark, and Peru. The focus here is to identify polarising rhetoric, including campaign attacks, and polarisation in broader public debates.

The method focusses especially on …

The final speaker in this session at the AoIR 2025 conference is the brilliant Fabio Giglietto, presenting a study of pro-Bolsonaro narratives on Facebook in Brazil. The key question here is whether online hyperpartisan groups are as stable as they are thought to be; is that true, and how does such stability fare in times of intense political crisis?

Brazil is an obvious case for the study of such questions. The project tracked some 59 pro-Bolsonaro accounts between 2021 and 2023, a timeframe including Bolsonaro’s election loss against Lula and his subsequent coup attempt. The dataset contains some 12 million …

And the final speaker at the IAMCR 2025 conference in Singapore for today is Nisha Singh, whose focus is on negative online political advertisements in India, especially in the context of elections. Elections are critical to democratic processes, and enable the people to voice their concerns to politicians; they also educate the public about democratic and political processes and stimulate political discourse.

Advertising has long been central to election processes, but the rise of digital advertising has transformed this, and enabled new campaigning approaches; this is no different in India. The rapid uptake of social media in India has further …

The third speaker in this session at the IAMCR 2025 conference in Singapore is Maham Sufi, whose focus is on misinformation and deepfakes in Pakistan. Deepfakes are AI-generated synthetic media, and their realism creates a substantial potential for audiences to be misinformed; however, image manipulation has long been a feature of political misinformation well before the emergence of AI image generation technologies.

Pakistan represents a hybrid regime with weak political parties that rely on the support of other elements of the establishment – not least the military. Image manipulation has a history here, directed at various leading politicians; this has …

The final session on this second day of the IAMCR 2025 conference in Singapore is on mis- and disinformation, and begins with Chia-Shin Lin. His focus is on misinformation during Taiwanese elections, which he says is prevalent in part due to the ‘funny’ relationship between Taiwan and mainland China. This is part of a broader  ‘China factor’ of political pressure and interference in other countries’ political processes, and similar to the way that Russia and other problematic regimes also interfere elsewhere. How do older Taiwanese voters perceive the circulation of misinformation through instant messaging, then, especially during the 2024 presidential …

The next speaker in this session at the IAMCR 2025 conference in Singapore is Serge Banyongen, whose interest is in political communication and agenda-setting on climate change during the recent Canadian election. Climate change has become an increasingly important political topic in Canada, but this is not always reflected in election results; this is in part because ecological discourse is being cannibalised by economic issues.

This study approaches the debate through a production, process, and perception triangulation, analysing political discourse, media content, and voter responses. This builds on framing theory, agenda-setting theory, issue attention theory, and issue voting theory.

Pre-election …