The Behavioral Inhibition System and Engagement With, and Influence By, COVID-19 and Election-Based Misinformation.

The negative impact of misinformation on public discourse and public safety is increasingly a focus of attention. From the COVID-19 pandemic to national elections, exposure to misinformation has been linked to conflicting perceptions of social, economic, and political issues, which has been found to lead to polarization, radicalization, and acts of violence at the individual and group level. While a large body of research has emerged examining the development and spread of misinformation, little has been done to examine the human processes of being exposed to, and influenced by, misinformation material online. This article uses reinforcement sensitivity theory to examine the effect of individual differences in the Behavioral Inhibition System (BIS) on the behavioral and cognitive intentions to engage in violence after exposure to misinformation online. Using an online panel sample (Mechanical Turk), and a behavioral study that involved exposure to, and interaction with, misinformation, this study found that trait BIS score impacted how much individuals engaged with misinformation, as well as their ensuing activism and radicalism toward the narratives that were depicted. This study identified that engagement with misinformation impacted intentions for activism and radicalism, as did trait BIS. However, these effects were present for both misinformation and correct information conditions. These findings highlight the importance of BIS-related processes and raise important questions about the degree to which we need to think about online influence as a general process versus specific processes that directly relate to the effect of misinformation.

A Reinforcement Sensitivity Theory of Violent Extremist Propaganda: The Motivational Pathways Underlying Movement Toward and Away From Violent Extremist Action.

Anecdotal evidence supports than engaging with violent extremist content online facilitates the radicalization process. However, there is a consistent lack of empirically grounded research to provide insight into the psychological process through which this influence occurs (if at all). As such, most theories often fail to accommodate both the multifinality (the concept that many people are exposed to violent extremist material, yet never engage in violent extremism), and equifinality (the concept that people can view a range violent extremist content, yet all end up engaging in violent extremism) that naturally is observed in those who engage with violent extremist content online and those who engage in violent extremist behavior. This paper presents Reinforcement Sensitivity Theory (RST) as a theoretical framework to inform understanding of the process that governs the interaction between violent extremist material online and engaging with violent extremism. RST is a motivational theory which has been applied to a range of benevolent and deviant behaviors. Specifically, we argue that RST is suitable to explain the effect of violent extremist content online because (1) it outlines multiple differentiated motivational pathways that can account for multifinality and equifinality observed in those who engage in violent extremist behavior and (2) the extant neurological and psychophysiological research using RST provides a empirically supported framework for developing both research methods and verifiable hypotheses to advance our understanding of how, if at all, violent extremist content online contributes to the process of radicalization.