Knowledge that Transforms

Given the many contexts in which people have difficulty engaging with views that disagree with their own—from political discussions to workplace conflicts—it is critical to understand how conflictual conversations can be improved. Whereas previous work has focused on strategies to change individual-level mindsets (e.g., encouraging open-mindedness), the present study investigated the role of partners’ beliefs about their counterparts. Across seven preregistered studies ( N = 2,614 adults), people consistently underestimated how willing disagreeing counterparts were to learn about opposing views (compared with how willing participants were themselves and how willing they believed agreeing others would be). Further, this belief strongly predicted greater derogation of attitude opponents and more negative expectations for conflictual conversations. Critically, in both American partisan politics and the Israeli-Palestinian conflict, a short informational intervention that increased beliefs that disagreeing counterparts were willing to learn about one’s views decreased derogation and increased willingness to engage in the future. We built on research recognizing the power of the situation to highlight a fruitful new focus for conflict research.

Self-control—the ability to inhibit inappropriate impulses—predicts economic, physical, and psychological well-being. However, recent findings demonstrate low correlations among self-control measures, raising the question of what self-control actually is. Here, we examined the idea that people high in self-control show more stable mental processing, characterized by processing steps that are fewer in number but longer lasting because of fewer interruptions by distracting impulses. To test this hypothesis, we relied on resting electroencephalography microstate analysis, a method that provides access to the stream of mental processing by assessing the sequential activation of neural networks. Across two samples (Study 1: N = 58 male adults from Germany; Study 2: N = 101 adults from Canada, 58 females), the temporal stability of resting networks (i.e., longer durations and fewer occurrences) was positively associated with self-reported self-control and a neural index of inhibitory control, and it was negatively associated with risk-taking behavior. These findings suggest that stable mental processing represents a core feature of a self-controlled mind.

Violent extremism is one of the major challenges of our time. A cluster-randomized controlled trial with two arms (treatment vs. control) conducted in 132 villages in the Sahel region of Burkina Faso ( N = 2,904 participants) examined whether a narrative intervention in the format of a radio drama can shift behavioral intentions, beliefs, and attitudes in contexts of violent extremism. Individuals in intervention villages participated in weekly listening sessions to the radio drama (6 months’ content) over 12 weeks. Compared with the control condition, the narrative intervention reduced justification of violence, increased behavioral intentions to collaborate with the police, and increased prioritization of addressing violent extremism. The intervention did not influence beliefs about or attitudes toward the police (e.g., trust, fairness) or beliefs about police–community collaboration. Content analysis of the narrative intervention and participants’ reception and discussion of the intervention provide insights on the processes driving the intervention’s influence.

The gender-equality paradox refers to the puzzling finding that societies with more gender equality demonstrate larger gender differences across a range of phenomena, most notably in the proportion of women who pursue degrees in science, technology, engineering, and math. The present investigation demonstrates across two different measures of gender equality that this paradox extends to chess participation ( N = 803,485 across 160 countries; age range: 3–100 years), specifically that women participate more often in countries with less gender equality. Previous explanations for the paradox fail to account for this finding. Instead, consistent with the notion that gender equality reflects a generational shift, mediation analyses suggest that the gender-equality paradox in chess is driven by the greater participation of younger players in countries with less gender equality. A curvilinear effect of gender equality on the participation of female players was also found, demonstrating that gender differences in chess participation are largest at the highest and lowest ends of the gender-equality spectrum.

Receiving social support is critical for well-being, but concerns about a recipient’s reaction could make people reluctant to express such support. Our studies indicate that people’s expectations about how their support will be received predict their likelihood of expressing it (Study 1, N = 100 online adults), but these expectations are systematically miscalibrated. Participants who sent messages of support to others they knew (Study 2, N = 120 students) or who expressed support to a new acquaintance in person (Study 3, N = 50 adult pairs) consistently underestimated how positively their recipients would respond. A systematic perspective gap between expressers and recipients may explain miscalibrated expectations: Expressers may focus on how competent their support seems, whereas recipients may focus on the warmth it conveys (Study 4, N = 300 adults). Miscalibrated concerns about how to express support most competently may make people overly reluctant to reach out to someone in need.

The Mandela effect is an Internet phenomenon describing shared and consistent false memories for specific icons in popular culture. The visual Mandela effect is a Mandela effect specific to visual icons (e.g., the Monopoly Man is falsely remembered as having a monocle) and has not yet been empirically quantified or tested. In Experiment 1 ( N = 100 adults), we demonstrated that certain images from popular iconography elicit consistent, specific false memories. In Experiment 2 ( N = 60 adults), using eye-tracking-like methods, we found no attentional or visual differences that drive this phenomenon. There is no clear difference in the natural visual experience of these images (Experiment 3), and these errors also occur spontaneously during recall (Experiment 4; N = 50 adults). These results demonstrate that there are certain images for which people consistently make the same false-memory error, despite the majority of visual experience being the canonical image.

Although much is known about cooperation, the internal decision rules that regulate motivations to initiate and maintain cooperative relationships have not been thoroughly explored. Here, we focus on how acts of benefit delivery and perceptions of social value inform gratitude, an emotion that promotes cooperation. We evaluated alternate information-processing models to determine which inputs and internal representations best account for the intensity with which people report experiencing gratitude. Across two experiments ( Ns = 257 and 208), we tested 10 models that consider multiple variables: the magnitude of benefits conferred on beneficiaries, the magnitude of costs incurred by benefactors, beneficiaries’ perception of how much benefactors value their welfare, and beneficiaries’ value for the welfare of their benefactors. Across both studies, only beneficiaries’ change in social valuation for their benefactors consistently predicted gratitude. Results point to the need for further research and contribute to the growing literature linking cooperation, social emotions, and social valuation.

Research on face impressions has often focused on a fixed, universal architecture, treating regional variability as noise. Here, we demonstrated a crucial yet neglected role of cultural learning processes in forming face impressions. In Study 1, we found that variability in the structure of adult perceivers’ face impressions across 42 world regions ( N = 287,178) could be explained by variability in the actual personality structure of people living in those regions. In Study 2, data from 232 world regions ( N = 307,136) revealed that adult perceivers use the actual personality structure learned from their local environment to form lay beliefs about personality, and these beliefs in turn support the structure of perceivers’ face impressions. Together, these results suggest that people form face impressions on the basis of a conceptual understanding of personality structure that they have come to learn from their regional environment. The findings suggest a need for greater attention to the regional and cultural specificity of face impressions.

How does shame affect social cohesion? Prior work has drawn divergent conclusions to this question because shame can spur maladaptive behaviors for people who experience it. However, past work has overlooked the interindividual effects of shame—how one’s expression of shame affects people who witness it. We investigated these social-learning effects of shame and identified norm transmission as a reliable route by which shame facilitates social cohesion. Across five studies and two supplemental studies with U.S.-based adult participants ( N = 3,726), we manipulated whether someone conveys shame, no specific emotion, or other discrete emotions regarding their behavior. We then assessed the effect of this emotional expression on participants’ norm inferences and norm-conforming behavior. We found that shame broadcasts particularly strong signals about social norms, and people adjust their behavior to align with these norms. We discuss how these findings challenge common conclusions about shame and generate insights about shame’s influence on social life.