From Urban Stimulus to Political Judgment: A Dual-Pathway Theory of Attentional Interruption, Information Diversity, and Long-Horizon Policy Deliberation

Urban environments offer unusually dense opportunities for observation, social contact, and exposure to new ideas. The same environments may also produce frequent attentional redirection, leaving less uninterrupted time for integrating complex information. This paper develops a dual-pathway theory linking environmental stimuli to political judgment. One pathway increases informational diversity and exploratory associations; the other increases interruption, switching costs, and fragmentation of sustained policy deliberation. The theory predicts a conditional trade-off, not an assertion that urban residents think less carefully or hold inferior political views. It distinguishes the direction of a political preference from the quality of reasoning about its factual and long-horizon consequences. The paper audits existing electoral and environmental datasets and conducts an original feasibility analysis of the public 2019 Canadian Election Study. The source file has 37,822 campaign-period observations and 10,340 post-election respondents; 8,313 post-election responses meet the survey's clean-complete definition. Among clean linked records, an extreme-residence comparison begins with 5,440 large-city/suburban respondents and 819 rural/village respondents. Coarsened exact matching across demographic, religious, household, and partisan dimensions yields up to 246 potential one-to-one pairs, declining to 94 pairs under finer classifications. These are genuine matched residential groups, but no directly measured environmental-interruption treatment exists in the data. Germany's ALLBUS 2014 survey offers a stronger, though still observational, candidate because it measures residential noise and vote intention within the same survey. A preregisterable randomized protocol is therefore proposed to identify the causal effect of interruption while holding policy facts and pre-existing political orientation constant. Status: Conceptual theory with an exploratory secondary-data feasibility audit; not a causal test or peer-reviewed publication.