Artificial Intelligence Technologies and Electoral Behavior: A Rapid Review of the 2022 Brazilian Presidential Election

This rapid review synthesizes current research on the influence of artificial intelligence (AI) technologies on voter behavior and electoral outcomes during Brazil's 2022 presidential election. Through systematic analysis of thirteen studies, we identified three primary mechanisms through which AI shapes electoral processes: sentiment analysis and opinion tracking, algorithmic amplification of polarizing content, and automated disinformation campaigns. AI-powered sentiment analysis achieved up to 90% accuracy in tracking voter preferences and frequently aligned with electoral outcomes. Bot networks and coordinated campaigns significantly influenced information dissemination, with regional variations mirroring actual voting patterns—positive sentiment for Bolsonaro concentrated in the Southeast and support for Lula in the Northeast. These findings suggest that AI technologies fundamentally reshape democratic discourse by enabling sophisticated political monitoring while creating new vulnerabilities for electoral manipulation.