John Paul Wilson

Towards a synthetic model of own group biases in face memory

In the current work, we extend the Categorization-Individuation Model (Hugenberg, Young, Bernstein, & Sacco, 2010)—an existing model of the own race bias—to organize and explain the proliferation of own group biases in face memory. In this model, we propose that own group biases result from the coacting processes of social categorization,motivation to individuate, and individuation experience. This extended Categorization-Individuation Model affords a number of benefits. First, this model allows us to begin to consider various own group biases as manifestations a single class of phenomena, offering sensible predictions across and among biases. Further, this extended Categorization-Individuation Model makes novel predictions for how own group biases can be exacerbated and eliminated by both perceptual and motivational processes, allowing for potentially novel interventions forown group biases. Finally,we discuss a variety of open questions with regard to an extended Categorization-Individuation Model, with an eye towards framing future research questions.

The Face of Humanity Configural Face Processing Influences Ascriptions of Humanness

Across three studies, we test the hypothesis that the perceived “humanness” of a human face can have its roots, in part, in low-level, feature-integration processes typical of normal face perception—configural face processing. We provide novel evidence that perceptions of humanness/dehumanization can have perceptual roots. Relying on the well-established face inversion paradigm, we demonstrate that disruptions of configural face processing also disrupt the ability of human faces to activate concepts related to humanness (Experiment 1), disrupt categorization of human faces as human (but not animal faces as animals; Experiment 2), and reduce the levels of humanlike traits and characteristics ascribed to faces (Experiment 3). Taken together, the current findings provide a novel demonstration that dehumanized responses can arise from bottom-up perceptual cues, which suggests novel causes and consequences of dehumanizing responses.

Racial bias in judgments of physical size and formidability: from size to threat

Black men tend to be stereotyped as threatening and, as a result, may be disproportionately targeted by police even when unarmed. Here, we found evidence that biased perceptions of young Black men’s physical size may play a role in this process. The results of 7 studies showed that people have a bias to perceive young Black men as bigger (taller, heavier, more muscular) and more physically threatening (stronger, more capable of harm) than young White men. Both bottom-up cues of racial prototypicality and top-down information about race supported these misperceptions. Furthermore, this racial bias persisted even among a target sample from whom upper-body strength was controlled (suggesting that racial differences in formidability judgments are a product of bias rather than accuracy). Biased formidability judgments in turn promoted participants’ justifications of hypothetical use of force against Black suspects of crime. Thus, perceivers appear to integrate multiple pieces of information to ultimately conclude that young Black men are more physically threatening than young White men, believing that they must therefore be controlled using more aggressive measures.

Interactive Effects of Obvious and Ambiguous Social Categories on Perceptions of Leadership: When Double-Minority Status May Be Beneficial:

Easily perceived identities (e.g., race) may interact with perceptually ambiguous identities (e.g., sexual orientation) in meaningful but elusive ways. Here, we investigated how intersecting identities impact impressions of leadership. People perceived gay Black men as better leaders than members of either single-minority group (i.e., gay or Black). Yet, different traits supported judgments of the leadership abilities of Black and White targets; for instance, warmth positively predicted leadership judgments for Black men but dominance positively predicted leadership judgments for White men. These differences partly occurred because of different perceptions of masculinity across the intersection of race and sexual orientation. Indeed, both categorical (race and sex) and noncategorical (trait) social information contributed to leadership judgments. These findings highlight differences in the traits associated with leadership in Black and White men, as well as the importance of considering how intersecting cues associated with obvious and ambiguous groups moderate perceptions.

Overgeneralizing Belonging: Limited Exposure to Baby-Faced Targets Increases the Feeling of Social Belonging

ABSTRACT We tested the hypothesis that exposure to babyish faces can serve a social surrogacy function, such that even limited exposure to babyish faces can fulfill social belongingness needs. We manipulated the sex and facial maturity of a target face seen in an imagined social interaction, on a between-participants basis. Regardless of target sex, individuals indicated greater satisfaction of social belongingness needs following an imagined interaction with a babyish face, compared to a mature adult face. These results indicate that brief exposure to babyish (relative to mature) faces, even without an extensive interaction, can lead to the satisfaction of social belongingness needs.

A minimal ingroup advantage in emotion identification confidence

ABSTRACT Emotion expressions convey valuable information about others’ internal states and likely behaviours. Accurately identifying expressions is critical for social interactions, but so is perceiver confidence when decoding expressions. Even if a perceiver correctly labels an expression, uncertainty may impair appropriate behavioural responses and create uncomfortable interactions. Past research has found that perceivers report greater confidence when identifying emotions displayed by cultural ingroup members, an effect attributed to greater perceptual skill and familiarity with own-culture than other-culture faces. However, the current research presents novel evidence for an ingroup advantage in emotion decoding confidence across arbitrary group boundaries that hold culture constant. In two experiments using different stimulus sets participants not only labeled minimal ingroup expressions more accurately, but did so with greater confidence. These results offer novel evidence that ingroup advantages in emotion decoding confidence stem partly from social-cognitive processes.

Advances in Understanding the Detectability of Trustworthiness From the Face: Toward a Taxonomy of a Multifaceted Construct

Researchers have recently shown increasing interest in assessments of trustworthiness, devoting much attention to whether trustworthiness can be detected from a person’s facial appearance. This question has been investigated along diverse behavioral dimensions, using a wide variety of targets, and with great inconsistency in results. Here, we call for greater precision in defining trustworthiness. We review various subdomains of trustworthiness perception and argue that developing a more highly specified taxonomy of trustworthiness will allow for better predictions about when trustworthiness can be judged on the basis of appearance, for more precision in estimating how accurate people are in making such judgments, and for more accurate information regarding the specific cues relevant to inferring trustworthiness in each domain.

A Synthetic Perspective on the Own-Race Bias in Eyewitness Identification

Perceivers show worse memory for other-race than own-race faces. Much of the interest in this own-race bias (ORB) stems from the problems that it may introduce in eyewitness misidentification. Here we focus on extending our categorization-individuation model of the ORB. This model proposes that the ORB and other group-based memory biases result from co-acting factors: social categorization into ingroups and outgroups, greater motivation to individuate ingroup members, and greater individuation experience with ingroup than outgroup members. This model explains the social motivational origins of the ORB and makes novel predictions for how it can be reduced. After reviewing the extant literature, we make recommendations for reducing the ORB in eyewitness identification, both at the point of witnessing the crime and during the witness lineup. Our model indicates that reduction of the ORB through improvements in recognition sensitivity will occur through training specifically designed to encourage an individuation mindset. However, the model also indicates that the most effective interventions will occur before encoding, meaning that post-encoding interventions may only reduce the ORB by affecting decision criterion. Further, this perspective indicates that other own-race-like biases may emerge in eyewitness memory, meaning that memory distortions may be even more common than the ORB literature indicates. This model provides novel possibilities for interventions to reduce the ORB and its legal consequences, while also providing boundaries on where careful interventions are likely to be most effective. This chapter can inform the work of scholars and policymakers as they attempt to understand and reduce the ORB.