Social essentialism in the United States and China: How social and cognitive factors predict within- and cross-cultural variation in essentialist thinking.

People intuitively view some social groups (such as Black people, Muslims, and women) as having biological underpinnings and discrete boundaries. Essentialist beliefs about social groups shape how people view themselves and others, leading to a number of negative social consequences. Whereas previous research has demonstrated variations in social essentialism within some Western societies, less is known about how social essentialism manifests in East Asian cultures that have well-documented differences in social values and cognitive styles from Western cultures. The current research investigated cultural variations in social essentialist thinking in the United States and China to reveal how cultural ideologies and social belief systems shape people's basic representations of the social world. Analyses revealed several cultural and social correlates of social essentialism both between and within the cultures and demonstrated the mediating role of collectivistic values in predicting cultural differences in essentialist beliefs about group coherence.

Intuitive biological thinking in Chinese 8th graders.

People spontaneously engage in systematic ways of thinking about biology such as human exceptionalism (the tendency of viewing human species as separate from nonhuman species), essentialism (the tendency of assuming category membership as determined by an underlying essence), and teleology (the tendency of seeing purpose as the cause). However, with the majority of past research drawn on Western samples, little is known about whether various types of intuitive biological thinking apply to non-Western contexts. To better understand the nature and cultural prevalence of intuitive biological thinking, we measured essentialist, teleological, and human exceptionalist thinking in a group of Chinese 8th graders. Results demonstrated the presence of all three types of intuitive biological thinking in Chinese middle schoolers, and comparisons with previously published data on U.S. 8th graders showed consistently less human exceptionalism and slightly higher essentialist thinking in China. As such, the current results highlight the prevalence of intuitive biological thinking in an East Asian sample while addressing the potential role of cultural inputs in shaping the way such thinking manifests.

Universality in kinetic models of circadian rhythms in [Formula: see text].

Biological evolution has endowed the plant Arabidopsis thaliana with genetically regulated circadian rhythms. A number of authors have published kinetic models for these oscillating chemical reactions based on a network of interacting genes. To investigate the hypothesis that the Arabidopsis circadian dynamical system is poised near a Hopf bifurcation like some other biological oscillators, we varied the kinetic parameters in the models and searched for bifurcations. Finding that each model does exhibit a supercritical Hopf bifurcation, we performed a weakly nonlinear analysis near the bifurcation points to derive the Stuart-Landau amplitude equation. To illustrate a common dynamical structure, we scaled the numerical solutions to the models with the asymptotic solutions to the Stuart-Landau equation to collapse the circadian oscillations onto two universal curves-one for amplitude, and one for frequency. However, some models are close to bifurcation while others are far, some models are post-bifurcation while others are pre-bifurcation, and kinetic parameters that lead to a bifurcation in some models do not lead to a bifurcation in others. Future kinetic modeling can make use of our analysis to ensure models are consistent with each other and with the dynamics of the Arabidopsis circadian rhythm.

Icing on the Cake: "Amplification Effect" of Innovative Information Form in News Reports About COVID-19.

In the information era, the instant and diversified broadcasting of the COVID-19 pandemic has played an important role in stabilizing the societal mental state and avoiding inter-group conflicts. The presentation of visual graphics was considered as an innovative information form and broadly utilized in news reports. However, its effects on the audiences' cognition and behaviors have received little empirical attention. The current study applied real-time and retrospective priming paradigms to examine the impacts of information framing (positive vs. negative) and form (plain text vs. pie chart) on individuals' risk perception (cognition), positive emotion (emotion), and willingness to help others (behavioral intention) during the outbreak and post-pandemic period in China. The results indicated the "amplification effect" of the innovative form of information in the real-time priming condition, which increased the effect of the information framing on cognition, emotion, and behavioral intention. However, in the retrospective priming condition, the amplification effect on cognition and emotion were weakened, while its effect on behavioral intention disappeared. In conclusion, the study found the "amplification effect" of innovative information forms. Further, the difference in the results in the real-time and retrospective priming paradigms suggested the constraint of the context of the "amplification effect," and indicated the possible deviation of the retrospective paradigm in studies about disaster-related news. This study provides empirical support for how subtle changes in information presentation influence public mental and behavioral responses during a pandemic and has important implications for media psychology and social governance.

Do We See Masculine Faces as Competent and Feminine Faces as Warm? Effects of Sexual Dimorphism on Facial Perception.

Previous research on non-facial features demonstrated that masculinity and femininity correlated highly with perceived competence and warmth, respectively. Several studies focused on dimorphic facial cues and found an association between masculine faces and competence. However, there's no study exploring the association between facial dimorphism and social judgment both using explicit and implicit experimental paradigms, i.e. Triad Classification Task, Implicit Associate Task. This study examined the association of masculinity/femininity and competence/warmth via explicit and implicit measures in three experiments. The results showed that participants saw feminine/masculine faces as more consistent with warmth/competence for both male and female faces. Besides, it was found that the above associations were more obvious in female participants. The current studies extended research of effects of dimorphic facial cue in social judgment and provided direct evidence linking facial masculinity with perceived competence, and facial femininity with perceived warmth.

Intuitive biological thought: Developmental changes and effects of biology education in late adolescence.

A large body of cognitive research has shown that people intuitively and effortlessly reason about the biological world in complex and systematic ways. We addressed two questions about the nature of intuitive biological reasoning: How does intuitive biological thinking change during adolescence and early adulthood? How does increasing biology education influence intuitive biological thinking? To do so, we developed a battery of measures to systematically test three components of intuitive biological thought: anthropocentric thinking, teleological thinking and essentialist thinking, and tested 8th graders and university students (both biology majors, and non-biology majors). Results reveal clear evidence of persistent intuitive reasoning among all populations studied, consistent but surprisingly small differences between 8th graders and college students on measures of intuitive biological thought, and consistent but again surprisingly small influence of increasing biology education on intuitive biological reasoning. Results speak to the persistence of intuitive reasoning, the importance of taking intuitive knowledge into account in science classrooms, and the necessity of interdisciplinary research to advance biology education. Further studies are necessary to investigate how cultural context and continued acquisition of expertise impact intuitive biology thinking.