Racial Prejudice Affects Representations of Facial Trustworthiness.

What makes faces seem trustworthy? We investigated how racial prejudice predicts the extent to which perceivers employ racially prototypical cues to infer trustworthiness from faces. We constructed participant-level computational models of trustworthiness and White-to-Black prototypicality from U.S. college students' judgments of White (Study 1, N = 206) and Black-White morphed (Study 3, N = 386) synthetic faces. Although the average relationships between models differed across stimuli, both studies revealed that as participants' anti-Black prejudice increased and/or intergroup contact decreased, so too did participants' tendency to conflate White prototypical features with trustworthiness and Black prototypical features with untrustworthiness. Study 2 (N = 324) and Study 4 (N = 397) corroborated that untrustworthy faces constructed from participants with pro-White preferences appeared more Black prototypical to naive U.S. adults, relative to untrustworthy faces modeled from other participants. This work highlights the important role of racial biases in shaping impressions of facial trustworthiness.

Comparing data quality from an online and in-person lab sample on dynamic theory of mind tasks.

Nearly half the published research in psychology is conducted with online samples, but the preponderance of these studies rely primarily on self-report measures. The current study validated data quality from an online sample on a novel, dynamic task by comparing performance between an in-lab and online sample on two dynamic measures of theory of mind-the ability to infer others' mental states. Theory of mind is a cognitively complex construct that has been widely studied across multiple domains of psychology. One task was based on the show The Office®, and has been previously validated by the authors with in-lab samples. The second was a novel task based on the show Nathan for You®, which was selected to account for familiarity effects associated with The Office. Both tasks measured various dimensions of theory of mind (inferring beliefs, understanding motivations, detecting deception, identifying faux pas, and understanding emotions). The in-person lab samples (N = 144 and 177, respectively) completed the tasks between-subject, whereas the online sample (N = 347 from Prolific Academic) completed them within-subject, with order counterbalanced. The online sample's performance across both tasks was reliable (Cronbach's α = .66). For The Office, the in-person sample outperformed the online sample on some types of theory of mind, but this was driven by their greater familiarity with the show. Indeed, for the relatively unfamiliar show Nathan for You, performance did not differ between the two samples. Together, these results suggest that crowdsourcing platforms elicit reliable performance on novel, dynamic, complex tasks.

Denver pain authenticity stimulus set (D-PASS).

We introduce the Denver Pain Authenticity Stimulus Set (D-PASS), a free resource containing 315 videos of 105 unique individuals expressing authentic and posed pain. All expressers were recorded displaying one authentic (105; pain was elicited via a pressure algometer) and two posed (210) expressions of pain (one posed expression recorded before [posed-unrehearsed] and one recorded after [posed-rehearsed] the authentic pain expression). In addition to authentic and posed pain videos, the database includes an accompanying codebook including metrics assessed at the expresser and video levels (e.g., Facial Action Coding System metrics for each video controlling for neutral images of the expresser), expressers' pain threshold and pain tolerance values, averaged pain detection performance by naïve perceivers who viewed the videos (e.g., accuracy, response bias), neutral images of each expresser, and face characteristic rating data for neutral images of each expresser (e.g., attractiveness, trustworthiness). The stimuli and accompanying codebook can be accessed for academic research purposes from https://digitalcommons.du.edu/lsdl_dpass/1/ . The relatively large number of stimuli allow for consideration of expresser-level variability in analyses and enable more advanced statistical approaches (e.g., signal detection analyses). Furthermore, the large number of Black (n = 41) and White (n = 56) expressers permits investigations into the role of race in pain expression, perception, and authenticity detection. Finally, the accompanying codebook may provide pilot data for novel investigations in the intergroup or pain sciences.

Motives matter: White instructors' external race-based motives undermine trust and belonging for Black college students.

OBJECTIVE: Trust is fundamental to successful educational relationships. Yet, numerous barriers inhibit the development of trust between students of color (SOC) and White instructors. The current research examined a metacognitive obstacle to the development of cross-race classroom trust: Primarily External Race Motives (PERM). PERM was defined as the experience that instructors were more concerned with avoiding the appearance of prejudice than having self-directed egalitarian motives. METHOD: Using within-subjects vignettes (n = 313; 74.8% female), between-subjects cross-sectional designs (n = 386; 70.5% female), and longitudinal methods (n = 135; 45.2% female), the current work tested the primary hypothesis that PERM would undermine instructor trust and classroom belonging. Hypotheses were tested with Black adults (Study 1) and college students (Studies 2 and 3). RESULTS AND CONCLUSIONS: Whether with hypothetical, past, or present White educators, feeling that instructors have primarily external race-based motives undermined instructor trust and classroom belonging. In all studies, the relationship between PERM and classroom belonging was mediated by instructor (mis)trust. The results provide evidence that motives viewed to be primarily external undermine instructional relationships for SOC. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Spatial frequency and valence interact in complex emotion perception.

Research on spatial frequency contributions to facial emotion identification has largely focused on basic emotions. The present experiment characterised spatial frequency contributions to decoding complex emotions, which can be less visible and intense than basic emotions. We investigated the effects of spatial frequency, expression valence and perceptually available features (full face or eyes only) on decoding accuracy. We observed main effects of all factors, with better performance for high (relative to low) spatial frequency, for positive (relative to negative) emotions and for full face (relative to eyes only) conditions. We also observed an interaction of all factors. The high spatial frequency advantage in decoding accuracy was eliminated only for full faces expressing more positive complex emotions. These findings suggest advantages from high spatial frequency content in accurately decoding complex emotions may attenuate when positive complex emotions are decoded from the spatial frequency content of a broader constellation of features.

Miami University deception detection database.

In the present work, we introduce the Miami University Deception Detection Database (MU3D), a free resource containing 320 videos of target individuals telling truths and lies. Eighty (20 Black female, 20 Black male, 20 White female, and 20 White male) different targets were recorded speaking honestly and dishonestly about their social relationships. Each target generated four different videos (i.e., positive truth, negative truth, positive lie, negative lie), yielding 320 videos fully crossing target race, target gender, statement valence, and statement veracity. These videos were transcribed by trained research assistants and evaluated by naïve raters. Descriptive analyses of the video characteristics (e.g., length) and subjective ratings (e.g., target attractiveness) are provided. The stimuli and an information codebook can be accessed free of charge for academic research purposes from http://hdl.handle.net/2374.MIA/6067 . The MU3D offers scholars the ability to conduct research using standardized stimuli that can aid in building more comprehensive theories of interpersonal sensitivity, enhance replication among labs, facilitate the use of signal detection analyses, and promote consideration of race, gender, and their interactive effects in deception detection research.

Lock-in technique for extraction of pulse rates and associated confidence levels from video.

We investigate the practical applicability of video photoplethysmography (VPPG) to extract heart rates of subjects using noncontact color video recordings of human faces collected under typical indoor laboratory conditions using commercial video cameras. Videos were processed following three previously described simple VPPG algorithms to produce a time-varying plethysmographic signal. These time signals were then analyzed using, to the best of our knowledge, a novel, lock-in algorithm that was developed to extract the pulsatile frequency component. A protocol to associate confidence estimates for the extracted heart rates for each video stream is presented. Results indicate that the difference between heart rates extracted using the lock-in technique and gold-standard measurements, for videos with high-confidence metrics, was less than 4 beats per minute. Constraints on video acquisition and processing, including natural subject motion and the total duration of video recorded required for evaluating these confidence metrics, are discussed.

Black and White Lies: Race-Based Biases in Deception Judgments.

In six studies ( N = 605), participants made deception judgments about videos of Black and White targets who told truths and lies about interpersonal relationships. In Studies 1a, 1b, 1c, and 2, White participants judged that Black targets were telling the truth more often than they judged that White targets were telling the truth. This truth bias was predicted by Whites' motivation to respond without prejudice. For Black participants, however, motives to respond without prejudice did not moderate responses (Study 2). In Study 3, we found similar effects with a manipulation of the targets' apparent race. Finally, in Study 4, we used eye-tracking techniques to demonstrate that Whites' truth bias for Black targets is likely the result of late-stage correction processes: Despite ultimately judging that Black targets were telling the truth more often than White targets, Whites were faster to fixate on the on-screen "lie" response box when targets were Black than when targets were White. These systematic race-based biases have important theoretical implications (e.g., for lie detection and improving intergroup communication and relations) and practical implications (e.g., for reducing racial bias in law enforcement).

Overgeneralizing belonging: limited exposure to baby-faced targets increases the feeling of social belonging.

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.

Social perception of robots is shaped by beliefs about their minds.

Roboticists often imbue robots with human-like physical features to increase the likelihood that they are afforded benefits known to be associated with anthropomorphism. Similarly, deepfakes often employ computer-generated human faces to attempt to create convincing simulacra of actual humans. In the present work, we investigate whether perceivers' higher-order beliefs about faces (i.e., whether they represent actual people or android robots) modulate the extent to which perceivers deploy face-typical processing for social stimuli. Past work has shown that perceivers' recognition performance is more impacted by the inversion of faces than objects, thus highlighting that faces are processed holistically (i.e., as Gestalt), whereas objects engage feature-based processing. Here, we use an inversion task to examine whether face-typical processing is attenuated when actual human faces are labeled as non-human (i.e., android robot). This allows us to employ a task shown to be differentially sensitive to social (i.e., faces) and non-social (i.e., objects) stimuli while also randomly assigning face stimuli to seem real or fake. The results show smaller inversion effects when face stimuli were believed to represent android robots compared to when they were believed to represent humans. This suggests that robots strongly resembling humans may still fail to be perceived as "social" due pre-existing beliefs about their mechanistic nature. Theoretical and practical implications of this research are discussed.

The reappropriation of stigmatizing labels: the reciprocal relationship between power and self-labeling.

We present a theoretical model of reappropriation--taking possession of a slur previously used exclusively by dominant groups to reinforce another group's lesser status. Ten experiments tested this model and established a reciprocal relationship between power and self-labeling with a derogatory group term. We first investigated precursors to self-labeling: Group, but not individual, power increased participants' willingness to label themselves with a derogatory term for their group. We then examined the consequences of such self-labeling for both the self and observers. Self-labelers felt more powerful after self-labeling, and observers perceived them and their group as more powerful. Finally, these labels were evaluated less negatively after self-labeling, and this attenuation of stigma was mediated by perceived power. These effects occurred only for derogatory terms (e.g., queer, bitch), and not for descriptive (e.g., woman) or majority-group (e.g., straight) labels. These results suggest that self-labeling with a derogatory label can weaken the label's stigmatizing force.

Perceiving People With Physical Disabilities as Overcoming Adversity Warps Mind Perception.

Across six studies, we tested how people with physical disabilities were ascribed mental faculties. People with physical disabilities were seen as more capable of mental agency (e.g., thinking), but not more capable of experience (e.g., pain), compared to nondisabled people (Study 1). People with physical disabilities were also seen as more capable of supernatural mental agency (e.g., seeing the future, reading minds; Study 2). Believing that people with physical disabilities were more mentally agentic than nondisabled people was unrelated to Beliefs in a Just World (Study 3) but was related to beliefs about hardship (Study 4). Narratives of overcoming adversity, common in portrayals of the disabled community, increased the perceived mental sophistication of people with physical disabilities (Study 5). Finally, hardship narratives also affected helping behavior toward people with physical disabilities (Study 6). Thus, hardship stories surrounding individuals with disabilities may contribute to beliefs that they have particularly sophisticated minds.

A Race-Based Size Bias for Black Adolescent Boys: Size, Innocence, and Threat.

We adopted an intersectional stereotyping lens to investigate whether race-based size bias-the tendency to judge Black men as larger than White men-extends to adolescents. Participants judged Black boys as taller than White boys, despite no real size differences (Studies 1A and 1B), and even when boys were matched in age (Study 1B). The size bias persisted when participants viewed computer-generated faces that varied only in apparent race (Study 2A) and extended to perceptions of physical strength, with Black boys judged as stronger than White boys (Study 2B). The size bias was associated with threat-related perceptions, including beliefs that Black boys were less innocent than White boys (Study 3). Finally, the size bias was moderated by a valid threat signal (i.e., anger expressions, Studies 4A and 4B). Thus, adult-like threat stereotypes are perpetrated upon Black boys, leading them to be erroneously perceived as more physically formidable than White boys.

In the Face of Opportunities: Facial Structures of Scientists Shape Expectations of STEM Environments.

Impressions of role leaders provide information about anticipated opportunities in a role, and these perceptions can influence attitudes about science, technology, engineering, and mathematics (STEM) pathways. Specifically, the facial structures of role leaders influenced perceived affordances of working with that person, such as the availability of communal and agentic opportunities (e.g., mentorship; achievement). STEM faculty with trustworthy (relative to dominant) faces were seen as valuing communal goals (Studies 1-3), and in turn, perceived as affording both communal and agentic opportunities in their research groups (Studies 2-3b). These heightened goal opportunities aligned with perceptions that trustworthy-faced advisors would enact more group-supportive behaviors (Study 2). Consequently, students anticipated fairer treatment and reported greater interest in labs directed by trustworthy- than dominant-faced leaders (Studies 3a-4a), even when images were accompanied by explicit information about leaders' collaborative behavior (Study 4b). The faces of leaders can thus function as the "face" of that role and the surrounding culture.

Having the right face for the job: The effect of facial width-to-height ratio on job selection preferences.

Prior research has found that various job candidate characteristics can influence hiring decisions. The current work used experimental methods to test how a novel, appearance-based cue known as a facial width-to-height ratio (fWHR) can bias hiring preferences. A first study provides evidence for our initial hypothesis: people believed high fWHR candidates would be a better fit for blue-collar jobs compared with low fWHR candidates, who were in turn favoured for white-collar jobs. A second study replicates this initial finding and extends it by demonstrating that the effect of fWHR-derived trait inferences of strength and intelligence on hireability predictably varies by job type. Finally, in a third study, we find that this bias reverses when traditional stereotypes of blue-collar and white-collar jobs requiring physicality and intellect are subverted, finding that perceptions of the fit between face type and presumed job requirements matter most for hiring preferences. Together, these findings demonstrate how a seemingly subtle appearance-based cue can have robust implications for hiring.

Determining Whether Older Adults Use Similar Strategies to Young Adults in Theory of Mind Tasks.

OBJECTIVES: Theory of mind-the ability to infer others' mental states-declines over the life span, potentially due to cognitive decline. However, it is unclear whether deficits emerge because older adults use the same strategies as young adults, albeit less effectively, or use different or no strategies. The current study compared the similarity of older adults' theory of mind errors to young adults' and a random model. METHODS: One hundred twenty older adults (MAge = 74.68 years; 64 female) and 111 young adults (MAge = 19.1; 61 female) completed a novel theory of mind task (clips from an episode of the sitcom The Office®), and a standard measure of cognitive function (Logical Memory II). Monte Carlo resampling estimated the likelihood that older adults' error patterns were more similar to young adults' or a random distribution. RESULTS: Age deficits emerged on the theory of mind task. Poorer performance was associated with less similarity to young adults' response patterns. Overall, older adults' response patterns were ~2.7 million times more likely to match young adults' than a random model. Critically, one fourth of older adults' errors were more similar to the random distribution. Poorer memory ability contributed to this relationship. DISCUSSION: Age deficits in theory of mind performance may be driven by a subset of older adults and be related to disparities in strategy use. A certain amount of cognitive ability may be necessary for older adults to engage similar strategies to young adults' during theory of mind.

Race-based biases in psychological distress and treatment judgments.

Racism creates and sustains mental health disparities between Black and White Americans and the COVID-19 pandemic and ongoing harassment directed at Black Americans has exacerbated these inequities. Yet, as the mental health needs of Black Americans rise, there is reason to believe the public paradoxically believes that psychopathology hurts Black individuals less than White individuals and these biased distress judgments affect beliefs about treatment needs. Four studies (two pre-registered) with participants from the American public and the field of mental health support this hypothesis. When presented with identical mental illnesses (e.g., depression, anxiety, schizophrenia), both laypeople and clinicians believed that psychopathology would be less distressing to Black relative to White individuals. These distress biases mediate downstream treatment judgments. Across numerous contexts, racially-biased judgments of psychological distress may negatively affect mental healthcare and social support for Black Americans.

Waist-to-Hip Ratio Predicts Sexual Perception and Responses to Sexual Assault Disclosures.

The current work investigates the effects of target of perception's waist-to-hip ratio (WHR) on perceivers' judgments of sexual unrestrictedness and sexual victimization prototypicality. Studies 1a and 1b found that women with lower WHRs were perceived as relatively more sexually unrestricted. Studies 2a and 2b found that women with lower WHRs were perceived as relatively more prototypic of sexual victimization. Study 3 built on these findings to consider implications for responses to sexual assault disclosures. Perceivers disbelieved and minimized a disclosure of assault relatively more when made by a woman with a higher WHR. In sum, this body of work implicates WHR as a body cue that can inform consequential sexual perception. Thereby, this work identifies factors that could influence judgments of credibility of sexual violence reports, which may have implications for hesitancy to report sexual violence.

Perception and motivation in face recognition: a critical review of theories of the Cross-Race Effect.

Although humans possess well-developed face processing expertise, face processing is nevertheless subject to a variety of biases. Perhaps the best known of these biases is the Cross-Race Effect--the tendency to have more accurate recognition for same-race than cross-race faces. The current work reviews the evidence for and provides a critical review of theories of the Cross-Race Effect, including perceptual expertise and social cognitive accounts of the bias. The authors conclude that recent hybrid models of the Cross-Race Effect, which combine elements of both perceptual expertise and social cognitive frameworks, provide an opportunity for theoretical synthesis and advancement not afforded by independent expertise or social cognitive models. Finally, the authors suggest future research directions intended to further develop a comprehensive and integrative understanding of biases in face recognition.

Bodies and Minds: Heavier Weight Targets Are De-Mentalized as Lacking in Mental Agency.

Five experiments investigate the hypothesis that heavier weight individuals are denied mental agency (i.e., higher order cognitive and intentional capacities), but not experience (e.g., emotional and sensory capacities), relative to average weight individuals. Across studies, we find that as targets increase in weight, they are denied mental agency; however, target weight has no reliable influence on ascriptions of experience (Studies 1a-2b). Furthermore, the de-mentalization of heavier weight targets was associated with both disgust and beliefs about targets' physical agency (Study 3). Finally, de-mentalization affected role assignments. Heavier weight targets were rated as helpful for roles requiring experiential but not mentally agentic faculties (Study 4). Heavier weight targets were also less likely than chance to be categorized into a career when it was described as requiring mental agency (versus experience; Study 5). These findings suggest novel insights into past work on weight stigma, wherein discrimination often occurs in domains requiring mental agency.