Folk beliefs about genetic variation predict avoidance of biracial individuals

Human biological variation and the "normal"

Anatomically modern human being is a relatively young species (~300 000 years old) with small amounts of genetic variation contained within them. The vast majority of its existence was spent in Eastern Africa, migration out of the region began around 100 000 YBP. Sub-Saharan African populations have the greatest amount of human genetic variation. However, migration allowed populations to accumulate genomic variation associated with living in the arctic, higher altitudes, disease resistance, living on high fat or starchy foods, surviving toxic arsenic-rich environments, lactase persistence, changing skin pigmentation, gaining thicker hair, and changing height and body mass index. Understanding these aspects of human evolution forces us to reconsider our notion of the "normal." Thus, normal for our species includes having dark melanic skin, brown eyes, and brown tightly curled hair. Derived features include lighter skin (~10 000 YBP), blue eyes (~6000 YBP), and blond straight hair (~6000 YBP). Yet in reality, "normal" has no meaning for a species that inhabits such a broad geographic range. Natural selection and genetic drift have genetically differentiated human populations in ways that impact our morphological and physiological traits. The genomic differentiation is small and does not allow any unambiguous classification of human populations into biological races. Despite these now well-established facts of human variation, significant confusion associated with Eurocentric notions of the normal still persist in both the lay public and various professions such as biomedical research and clinical practice.

Broadening the stimulus set: Introducing the American Multiracial Faces Database

Face-based perceptions form the basis for how people behave towards each other and, hence, are central to understanding human interaction. Studying face perception requires a large and diverse set of stimuli in order to make ecologically valid, generalizable conclusions. To date, there are no publicly available databases with a substantial number of Multiracial or racially ambiguous faces. Our systematic review of the literature on Multiracial person perception documented that published studies have relied on computer-generated faces (84% of stimuli), Black-White faces (74%), and male faces (63%). We sought to address these issues, and to broaden the diversity of available face stimuli, by creating the American Multiracial Faces Database (AMFD). The AMFD is a novel collection of 110 faces with mixed-race heritage and accompanying ratings of those faces by naive observers that are freely available to academic researchers. The faces (smiling and neutral expression poses) were rated on attractiveness, emotional expression, racial ambiguity, masculinity, racial group membership(s), gender group membership(s), warmth, competence, dominance, and trustworthiness. The large majority of the AMFD faces are racially ambiguous and can pass into at least two different racial categories. These faces will be useful to researchers seeking to study Multiracial person perception as well as those looking for racially ambiguous faces in order to study categorization processes in general. Consequently, the AMFD will be useful to a broad group of researchers who are studying face perception.

Exploring people's thoughts about the causes of ethnic stereotypes

Much research has shown that people tend to view genes in rather deterministic ways—often termed genetic essentialism. We explored how people would view the causes of ethnic stereotypes in contexts where human genetic variability was either emphasized or downplayed. In two studies with over 1600 participants we found that people viewed ethnic stereotypes to be more of a function of underlying genetics after they read an article describing how ancestry can be estimated by geographic distributions of gene frequencies than after reading an article describing how relatively homogeneous the human genome was or after reading a control essay. Moreover, people were more likely to attribute ethnic stereotypes to genes when they scored higher on a measure of genetic essentialism or when they had less knowledge about genes. Our understanding of stereotypes is a function of our understanding of genetics.

Building Structural Empathy to Marshal Critical Education into Compassionate Practice: Evaluation of a Medical School Critical Race Theory Course

Ideas of racial genetic determinism, though unsupported by scientific evidence and atavistic, are common and readily apparent in American medical education. These theories of biologic essentialism have documented negative effects in learners, including increased measures of racial prejudice.

Chicago Face Database: Multiracial expansion

Multiracial individuals represent a growing segment of the population and have been increasingly the focus of empirical study. Much of this research centers on the perception and racial categorization of multiracial individuals. The current paper reviews some of this research and describes the different types of stimuli that have been used in these paradigms. We describe the strengths and weaknesses associated with different operationalizations of multiracialism and highlight the dearth of research using faces of real multiracial individuals, which we posit may be due to the lack of available stimuli. Our research seeks to satisfy this need by providing a free set of high-resolution, standardized images featuring 88 real multiracial individuals along with extensive norming data and objective physical measures of these faces. These data are offered as an extension of the widely used Chicago Face Database and are available for download at www.chicagofaces.org for use in research.

A Meta-Analytic Review of Hypodescent Patterns in Categorizing Multiracial and Racially Ambiguous Targets

Research addressing the increasing multiracial population (i.e., identifying with two or more races) is rapidly expanding. This meta-analysis (k = 55) examines categorization patterns consistent with hypodescent, or the tendency to categorize multiracial targets as their lower status racial group. Subgroup analyses suggest that operationalization of multiracial (e.g., presenting photos of racially ambiguous faces, or ancestry information sans picture), target gender, and categorization measurement (e.g., selecting from binary choices: Black or White; or multiple categorization options: Black, White, or multiracial) moderated categorization patterns. Operationalizing multiracial as ancestry, male targets, and measuring categorization with binary or multiple Likert-type scale outcomes supported hypodescent. However, categorizing multiracial targets as not their lower status racial group occurred for female targets or multiple categorization options. Evidence was mixed on whether perceiver and target race were related to categorization patterns. These results point to future directions for understanding categorization processes and multiracial perception.

Identity Denied: Comparing American or White Identity Denial and Psychological Health Outcomes Among Bicultural and Biracial People

Because bicultural and biracial people have two identities within one social domain (culture or race), their identification is often challenged by others. Although it is established that identity denial is associated with poor psychological health, the processes through which this occurs are less understood. Across two high-powered studies, we tested identity autonomy, the perceived compatibility of identities, and social belonging as mediators of the relationship between identity denial and well-being among bicultural and biracial individuals. Bicultural and biracial participants who experienced challenges to their American or White identities felt less freedom in choosing an identity and perceived their identities as less compatible, which was ultimately associated with greater reports of depressive symptoms and stress. Study 2 replicated these results and measured social belonging, which also accounted for significant variance in well-being. The results suggest the processes were similar across populations, highlighting important implications for the generalizability to other dual-identity populations.

Internalized homophobia, mental health, sexual behaviors, and outness of gay/bisexual men from Southwest China

Background

Social attitudes toward male homosexuality in China so far are still not optimistic. Sexual minorities in China have reported high levels of internalized homophobia.

Methods

This Internet-based study examined the associations among internalized homophobia, mental health, sexual behaviors, and outness among 435 gay/bisexual men in Southwest China from 2014 to 2015. Latent profile analysis, confirmatory factor analysis, univariate logistic regression, and separate multivariate logistic regression analyses were conducted.

Results

This descriptive study found the Internalized Homophobia Scale to be suitable for use in China. The sample demonstrated a high prevalence of internalized homophobia. Latent profile analysis suggested a 2-class solution as optimal, and a high level of internalized homophobia was significantly associated with greater psychological distress (Wald = 6.49, AOR = 1.66), transactional sex during the previous 6 months (Wald = 5.23, AOR = 2.77), more sexual compulsions (Wald = 14.05, AOR = 2.12), and the concealment of sexual identity from others (Wald = 30.70, AOR = 0.30) and parents (Wald = 6.72, AOR = 0.49).

Conclusions

These findings contribute to our understanding of internalized homophobia in China, and highlight the need to decrease gay-related psychological stress/distress and improve public health services.

Electronic supplementary material

The online version of this article (doi:10.1186/s12939-017-0530-1) contains supplementary material, which is available to authorized users.

The threat of racial progress and the self-protective nature of perceiving anti-White bias

In two studies we tested whether racial progress is threatening to Whites and whether perceiving anti-White bias assuages that threat. Study 1 revealed that Whites primed with racial progress exhibited evidence of threat (lower implicit self-worth relative to baseline). Study 2 replicated the threat effect from Study 1 and examined how perceiving discrimination may buffer Whites’ self-worth. After White participants primed with high racial progress attributed a negative event to their race, their implicit self-worth rebounded. Participants primed to perceive low racial progress did not experience fluctuations in implicit self-worth. Furthermore, among those primed with high racial progress, greater racial discounting (attributing rejection to race rather than to the self) was associated with greater self-worth protection. These studies suggest that changes to the racial status quo are threatening to Whites and that perceiving greater racial bias is a way to manage that threat.