Beliefs about social mobility in young American children.

Although actual experiences of upward social mobility are historically low, many adolescents and adults express a belief in social mobility (e.g., that social status can change). Although a belief in upward mobility (e.g., that status can improve) can be helpful for economically disadvantaged adolescents and adults, a belief in upward social mobility in adults is also associated with greater acceptance of societal inequality. While this belief might have similar benefits or consequences in children, no previous work has examined whether children are even capable of reasoning about social mobility. This is surprising, given that elementary-aged children exhibit sophisticated reasoning about both social status, as well as about the fixedness or malleability of properties and group membership. Across an economically advantaged group of 5- to 12-year-old American children (N = 151, Mage = 8.91, 63% racial majority, 25% racially marginalized; Mhousehold income = $133,064), we found evidence that children can reason about social mobility for their own families and for others. Similar to research in adults, children believe that others are more likely to experience upward than downward mobility. However, in contrast to adult's typical beliefs-but in line with economic realities-between 7- and 9-years-old, children become less likely to expect upward mobility for economically disadvantaged, versus advantaged, families. In sum, children are capable of reasoning about social mobility in nuanced ways; future work should explore the implications of these beliefs. RESEARCH HIGHLIGHTS: Despite harsh economic realities, a belief in upward social mobility and the American Dream is alive and well. Between 7 and 9 years of age, economically advantaged, American children begin to expect economically disadvantaged families to experience less upward mobility than economically advantaged families. Children's beliefs about social mobility better accord with reality than adults' do.

Automatic encoding across social categories in American children and adults.

Many caregivers wonder when to talk to children about social inequality and racism, often expressing the belief that children do not pay attention to race or inequity. Here, across 5-9-year-old American children (n = 159, Mage = 7.44; 51.6% female, 47.2% male, 1.2% nonconforming or not provided; 59.1% White, 23.3% racial-ethnic minority, 17.6% not provided) and adults (n = 182, 84.1% female, 13.7% male, 2.2% nonconforming or not provided, 54.9% White, 44.5% racial-ethnic minority, 0.60% not provided), the data show that even 5-year-olds automatically encoded (i.e., spontaneously noticed and remembered) information about race, occupational status, and gender. Although children and adults encoded gender and occupational status at similar levels, adults encoded race at significantly higher levels than children. Additionally, occupational status encoding in children was sensitive to relevant environmental input (i.e., children in less affluent communities were more likely to encode occupational status) suggesting that children become "tuned in" and motivated to notice relevant, salient aspects of their environment. Given the early emergence of gender, race, and occupational status encoding, caregivers should assume that children do notice racial, occupational, or gender inequities in their environments and feel confident in the decision to begin discussing the systemic roots of inequity with children from a young age. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Do American children automatically encode cues to wealth?

As adults, we readily notice markers of social status and wealth and draw conclusions about individuals based on these cues. Do children do the same? Using a "Who Said What?" task across 5- to 9-year-old American children (n = 159; Mage = 7.44 years; 51.6% female, 47.2% male, 1.2% nonconforming or not provided; 59.1% White, 23.3% racial-ethnic minority, 17.6% not provided) and adults (n = 182; 84.1% female, 13.7% male, 2.2% nonconforming or not provided; 54.9% White, 44.5% racial-ethnic minority, 0.6% not provided), we found that both children and adults automatically encode (i.e., spontaneously notice and remember) occupational cues (i.e., work attire) and quantitative cues (i.e., amount of money) to wealth but that only adults automatically encode qualitative cues to wealth (i.e., car quality), suggesting developmental changes in which types of cues to wealth are most salient. Furthermore, automatic encoding in children was sensitive to contextual factors; children from communities with less affluence and higher rates of unemployment were more likely to encode some wealth cues than their peers from more affluent and employed communities. Finally, from 5 to 7 years of age, children began to draw connections between wealth cues, using occupational cues to make inferences about the quantity and quality of others' possessions. This research highlights the changing salience of wealth cues across development and suggests that even young children are likely to notice economic inequality and thus to be ready for conversations about inequality, as well as the origins of inequality, at an earlier age than previously supposed.

Early perceptions of COVID-19 intensity and anti-Asian prejudice among White Americans.

Anecdotal reports suggested an uptick in anti-Asian prejudice corresponding with the initial outbreak of the COVID-19 pandemic. Examining responses from White U.S. citizens (N = 589) during the first months of the pandemic, this study tested: (a) whether actual intensity (official number of cases or deaths reported) or perceived intensity (participants' estimates of the same) of the COVID-19 outbreak predicted indicators of racial outgroup prejudice, particularly those associated with cross-group interaction, (b) whether outgroup prejudice was oriented toward Asian people specifically, or toward racial outgroups more broadly (e.g., toward both Asian people and Black people), and (c) whether contact with racial outgroups moderated relations between COVID-19 intensity and racial prejudice. Results showed that perceived COVID-19 intensity was associated with prejudice indicators representing the desire for social distance from Asian people, as well as from Black people, yet it was unrelated to reports of negative affect toward either racial outgroup. These patterns support the idea that prejudice during periods of disease outbreak might functionally serve to reduce willingness for interaction with, and likelihood of infection from, racial outgroups. Contact moderated the relation between official reports of COVID-19 intensity and support for anti-China travel policies, such that greater contact with Asian people was associated with less support for exclusionary, anti-China travel policies when actual COVID-19 intensity was high. Overall, these results suggest that intensity of disease threat can exacerbate racial outgroup prejudice and reduce willingness for cross-group interaction, but that intergroup contact may sometimes provide a prejudice-attenuating effect.

Boys and girls, men and women: Do children take stimulus age into account when expressing gender stereotypes?

Gender and age are salient social categories from early in development. However, whether children's beliefs about gender and age intersect, such that gender stereotypes might be expressed differently when asked about children (compared to adults) has not been investigated. Here, in a preregistered study (N = 297), we examined if young children (3.0-6.9-year-olds, Mage = 5.03 years, n = 145) and adults (n = 152) across Massachusetts were more likely to express gender stereotypes when presented with child or adult stimuli. Participants were presented with 20 questions about gender stereotyped behavioral and psychological properties and selected their response (male or female) for each question by selecting between four child faces (two White boys, two White girls) or four adult faces (two White men, two White women) across two separate blocks. Overall, both children and adults expressed gender stereotypes above chance, and, in children, expression of stereotypes increased across the age range. Although neither children nor adults applied gender stereotypes differently to child versus adult visual stimuli, all participants were more likely to apply gender stereotypes when that stereotype was child-centric (e.g., about doing childish activities). Our results suggest that children could be vulnerable to stereotype content from an early age; however, future research should explore whether children show this same age-invariant pattern when both gender and age are made salient and directly contrasted (e.g., by presenting men, women, boys, and girls simultaneously). (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Why do children show racial biases in their resource allocation decisions?

Young children often prefer people high in status and with access to resources. Children also favor fairness and equality, especially when it comes to sharing. Two studies examined how children (N = 185; age range = 4.0-6.9 years, Mage = 5.49 years; 45% White, 12% Asian, 11% Black, 7% Hispanic, 24% other or undisclosed) reconcile these conflicting preferences by investigating the relation between children's social preferences and resource allocations to White and Black children. Race provides an important case to examine how children resolve this conflict given that children show preferences for stereotypically high-status (White) people but also show awareness of systemic racial inequality that disadvantages Black people. In a costly sharing resource allocation task (i.e., Dictator Game) where participants were asked how much of a limited resource they wanted to share with a Black child and a White child, Study 1 revealed that participants sometimes chose to share more with a White child compared with a Black child but that biased giving was unrelated to children's biased feelings of warmth toward White children. Study 2 confirmed that biased giving was unrelated to children's feelings of warmth and instead implicated children's beliefs about race and wealth; children who expected White people to have more wealth showed more pro-White bias in their giving behavior. Together, these results suggest that cultural stereotypes about wealth might shape children's economic decision making in a way that perpetuates disadvantage, but they also indicate that the processes underlying resource allocation decisions warrant further study.

Female ornaments: is red skin color attractive to males and related to condition in rhesus macaques?

Sexual selection produces extravagant male traits, such as colorful ornaments, via female mate choice. More rarely, in mating systems in which males allocate mating effort between multiple females, female ornaments may evolve via male mate choice. Females of many anthropoid primates exhibit ornaments that indicate intraindividual cyclical fertility, but which have also been proposed to function as interindividual quality signals. Rhesus macaque females are one such species, exhibiting cyclical facial color variation that indicates ovulatory status, but in which the function of interindividual variation is unknown. We collected digital images of the faces of 32 rhesus macaque adult females. We assessed mating rates, and consortship by males, according to female face coloration. We also assessed whether female coloration was linked to physical (skinfold fat, body mass index) or physiological (fecal glucocorticoid metabolite [fGCM], urinary C-peptide concentrations) condition. We found that redder-faced females were mated more frequently, and consorted for longer periods by top-ranked males. Redder females had higher fGCM concentrations, perhaps related to their increased mating activity and consequent energy mobilization, and blood flow. Prior analyses have shown that female facial redness is a heritable trait, and that redder-faced females have higher annual fecundity, while other evidence suggests that color expression is likely to be a signal rather than a cue. Collectively, the available evidence suggests that female coloration has evolved at least in part via male mate choice. Its evolution as a sexually selected ornament attractive to males is probably attributable to the high female reproductive synchrony found in this species.

Higher early life mortality with lower infant body mass in a free-ranging primate.

Traits that reflect the amount of energy allocated to offspring by mothers, such as infant body mass, are predicted to have long-lasting effects on offspring fitness. In very long-lived species, such as anthropoid primates, where long-lasting and obligate parental care is required for successful recruitment of offspring, there are few studies on the fitness implications of low body mass among infants. Using body mass data collected from 253 free-ranging rhesus macaque Macaca mulatta infants on Cayo Santiago, Puerto Rico, we examined if lower infant body mass predicts lower chance of survival through to reproductive maturation (4th year of life). We also used data on inter-birth intervals and suckling behaviours to determine whether the duration of maternal care was adjusted to infant body mass. Rhesus macaque infants experienced on average 5% reduced hazard of death for an increase in body mass of 0.1 SD (~100 g) above the mean within their age-sex class. The positive association between body mass and early life survival was most pronounced in the 1st year of life. Infant body mass tended to be lower if mothers were young or old, but the link between infant body mass and early life survival remained after controlling for maternal age. This finding suggests that maternal effects on early life survival such as maternal age may act through their influence on infant body mass. Mothers of heavier infants were less likely to be delayed in subsequent reproduction, but the estimated association slightly overlapped with zero. The timing of the last week of suckling did not differ by infant body mass. Using infant body mass data that has been rarely available from free-ranging primates, our study provides comparative evidence to strengthen the existing body of literature on the fitness implications of variation in infant body mass.

Does essentialism lead to racial prejudice? It is not so Black and White.

Over half a century ago, psychologists hypothesized that social essentialism, an intuitive theory comprising the beliefs that social categories reflect naturally occurring distinctions and that category members share an underlying and fundamental essence, lays the foundation for prejudice. In the intervening decades, research has shown that although essentialism sometimes leads to prejudicial beliefs, attitudes, and behaviors, it does not always, sometimes even leading to decreased prejudice toward stigmatized groups. The relation between essentialism and prejudice is clearly complex, but this review proposes four questions that will help clarify how and when essentialism leads to prejudice: (1) What precisely is essentialism and how might a more nuanced understanding of its components and structure shed light on the mechanisms by which essentialist beliefs contribute to prejudice?; (2) Do essentialist beliefs orient group-based prejudice toward out-groups or toward stigmatized groups, and what are the consequences of essentialist beliefs among those with minoritized identities?; (3) Do essentialist beliefs engender group-based prejudice directly, or must essentialist beliefs interact with additional information or belief systems to lead to negative consequences?; and (4) Do essentialist beliefs lay a foundation for group-based prejudice to develop, or is essentialism strategically invoked to justify existing prejudice? By posing these questions, describing what is currently known about each, and proposing future lines of inquiry that focus on the importance of including participants from a diverse set of backgrounds and across developmental periods, this review aims to stimulate research studies best designed to fill the gaps in our knowledge. By understanding how and when essentialism contributes to prejudice, we will be better equipped to use this early-emerging, but malleable, aspect of cognition to decrease prejudice and create a more equitable society.

Children's use of race and gender as cues to social status.

Social hierarchies are ubiquitous and determine a range of developmental outcomes, yet little is known about when children develop beliefs about status hierarchies in their communities. The present studies (3.5-6.9 years; N = 420) found that children begin to use gender and race as cues to status in early childhood, but that gender and race related to different status dimensions and had different consequences for inter-group attitudes. Children expected boys to hold higher status as defined by access to resources and decision-making power (e.g., having more toys and choosing what other people play with) but did not expect boys to have more wealth overall. Gender-related status beliefs did not relate to gender-related social preferences; instead, children preferred members of their own gender, regardless of their status beliefs. In contrast, children expected White people to be wealthier than Black people, and among some populations of children, the belief that White people were higher status (as defined by access to resources and decision-making power) weakly related to pro-White bias. Children's status-expectations about others were unrelated to beliefs about their own status, suggesting children more readily apply category-based status beliefs to others than to themselves.

The Nature and Consequences of Essentialist Beliefs About Race in Early Childhood.

It is widely believed that race divides the world into biologically distinct kinds of people-an essentialist belief inconsistent with reality. Essentialist views of race have been described as early emerging, but this study found that young children (n = 203, Mage  = 5.45) hold only the more limited belief that the physical feature of skin color is inherited and stable. Overall, children rejected the causal essentialist view that behavioral and psychological characteristics are constrained by an inherited racial essence. Although average levels of children's causal essentialist beliefs about race were low, variation in these beliefs was related to children's own group membership, exposure to diversity, as well as children's own social attitudes.

Adaptive developmental plasticity in rhesus macaques: the serotonin transporter gene interacts with maternal care to affect juvenile social behaviour.

Research has increasingly highlighted the role that developmental plasticity-the ability of a particular genotype to produce variable phenotypes in response to different early environments-plays as an adaptive mechanism. One of the most widely studied genetic contributors to developmental plasticity in humans and rhesus macaques is a serotonin transporter gene-linked polymorphic region (5-HTTLPR), which determines transcriptional efficiency of the serotonin transporter gene in vitro and modifies the availability of synaptic serotonin in these species. A majority of studies to date have shown that carriers of a loss-of-function variant of the 5-HTTLPR, the short (s) allele, develop a stress-reactive phenotype in response to adverse early environments compared with long (l) allele homozygotes, leading to the prevalent conceptualization of the s-allele as a vulnerability allele. However, this framework fails to address the independent evolution of these loss-of-function mutations in both humans and macaques as well as the high population prevalence of s-alleles in both species. Here we show in free-ranging rhesus macaques that s-allele carriers benefit more from supportive early social environments than l-allele homozygotes, such that s-allele carriers which receive higher levels of maternal protection during infancy demonstrate greater social competence later in life. These findings provide, to our knowledge, the first empirical support for the assertion that the s-allele grants high undirected biological sensitivity to context in primates and suggest a mechanism through which the 5-HTTLPR s-allele is maintained in primate populations.

Essentialism promotes racial prejudice by increasing endorsement of social hierarchies.

Why do essentialist beliefs promote prejudice? We proposed that essentialist beliefs increase prejudice toward Black people because they imply that existing social hierarchies reflect a naturally occurring structure. We tested this hypothesis in three studies (N = 621). Study 1 revealed that racial essentialism was associated with increased prejudice toward Blacks among both White and Black adult participants, suggesting that essentialism relates to prejudice according to social hierarchy rather than only to group membership. Studies 2 and 3 experimentally demonstrated that increasing essentialist beliefs induced stronger endorsement of social hierarchy in both Black and White participants, which in turn mediated the effect of essentialism on negative attitudes toward Black people. Together, these findings suggest that essentialism increases prejudice toward low status groups by increasing endorsement of social hierarchies and existing inequality.

Vigilance for threat accounts for inter-individual variation in physiological responses to adversity in rhesus macaques: A cognition × environment approach.

Early life adversity (ELA) can lead to poor health later in life. However, there is significant variation in outcomes, with some individuals displaying resilience even in the face of adversity. Using longitudinal data collected from free-ranging rhesus macaques between birth and 3 years, we examined whether individual variation in vigilance for threat, an early emerging attentional bias, can account for variation in long-term outcomes between individuals reared in similar environments. We found that ELA and vigilance during infancy interact to predict physiological dysregulation in Sympathetic Nervous System (SNS) and Hypothalamic-Pituitary-Adrenal (HPA) stress responses during juvenility. During high stress periods, High ELA juveniles with high vigilance exhibit less asymmetry than High ELA juveniles with low vigilance. This suggests that although increased vigilance is viewed as a negative consequence of ELA, it might also be a mechanism by which vulnerable individuals proactively buffer themselves from negative outcomes in unstable or threatening environments.

The development and developmental consequences of social essentialism.

People often view certain ways of classifying people (e.g., by gender, race, or ethnicity) as reflecting real distinctions found in nature. Such categories are viewed as marking meaningful, fundamental, and informative differences between distinct kinds of people. This article examines the development of these essentialist intuitive theories of how the social world is structured, along with the developmental consequences of these beliefs. We first examine the processes that give rise to social essentialism, arguing that essentialism emerges as children actively attempt to make sense of their environment by relying on several basic representational and explanatory biases. These developmental processes give rise to the widespread emergence of social essentialist views in early childhood, but allow for vast variability across development and cultural contexts in the precise nature of these beliefs. We then examine what is known and still to be discovered about the implications of essentialism for stereotyping, inter-group interaction, and the development of social prejudice. We conclude with directions for future research, particularly on the theoretical payoff that could be gained by including more diverse samples of children in future developmental investigations. WIREs Cogn Sci 2017, 8:e1437. doi: 10.1002/wcs.1437 This article is categorized under: Psychology > Development and Aging Philosophy > Knowledge and Belief.

Effects of early life adversity on cortisol/salivary alpha-amylase symmetry in free-ranging juvenile rhesus macaques.

Early life adversity (ELA) affects physiological and behavioral development. One key component is the relationship between the developing Hypothalamic-Pituitary-Adrenal (HPA) axis and the Sympathetic Nervous System (SNS). Recent studies suggest a relationship between early life adversity and asymmetry in cortisol (a measure of HPA activation) and salivary alpha-amylase (sAA: a correlate of SNS activation) responses to stress among human children, but to our knowledge there have been no comparable studies in nonhumans. Here, we investigate the responses of these two analytes in "low stress" and "high stress" situations in free-ranging juvenile rhesus macaques (Macaca mulatta) on Cayo Santiago, Puerto Rico. Behavioral data on maternal maltreatment were collected during the first 3months of life to determine individual rates of ELA, and saliva samples were collected from subjects noninvasively during juvenility. Irrespective of ELA, salivary alpha-amylase levels were lower in low stress situations and higher in high stress situations. For cortisol however, high ELA subjects exhibited higher low stress concentrations and blunted acute responses during high stress situations compared to moderate and low ELA subjects. Cortisol and sAA values were positively correlated among low ELA subjects, suggesting symmetry, but were uncorrelated or negatively correlated among moderate and high ELA subjects, suggesting asymmetry in these individuals. These findings indicate dysregulation of the stress response among juveniles maltreated during infancy: specifically, attenuated cortisol reactivity coupled with typical sAA reactivity characterize the stress response profiles of juveniles exposed to higher rates of ELA during the first 3months of life.

Oxidative stress as an indicator of the costs of reproduction among free-ranging rhesus macaques.

Sex differences in longevity may reflect sex-specific costs of intra-sexual competition and reproductive effort. As male rhesus macaques experience greater intrasexual competition and die younger, we predicted that males would experience greater oxidative stress than females and that oxidative stress would reflect sex-specific measures of reproductive effort. Males, relative to females, had higher concentrations of 8-OHdG and malondialdehyde, which are markers of DNA oxidative damage and lipid peroxidation, respectively. Older macaques had lower 8-OHdG levels than younger ones, suggesting that oxidative stress decreases in parallel with known age-related declines in reproductive investment. Among males, a recent period of social instability affected oxidative status: males who attacked others at higher rates had higher 8-OHdG levels. Multiparous lactating females with daughters had higher 8-OHdG levels than those with sons. No differences in antioxidant capacity were found. These results lend initial support for the use of oxidative stress markers to assess trade-offs between reproductive effort and somatic maintenance in primates.

Physiological and behavioural responses to weaning conflict in free-ranging primate infants.

Weaning, characterized by maternal reduction of resources, is both psychologically and energetically stressful to mammalian offspring. Despite the importance of physiology in this process, previous studies have reported only indirect measures of weaning stress from infants, because of the difficulties of collecting physiological measures from free-ranging mammalian infants. Here we present some of the first data on the relationship between weaning and energetic and psychological stress in infant mammals. We collected data on 47 free-ranging rhesus macaque infants on Cayo Santiago, Puerto Rico, showing that faecal glucocorticoid metabolite (fGCM) concentrations were directly related to the frequency of maternal rejection, with fGCM concentrations increasing as rates of rejection increased. Infants with higher fGCM concentrations also engaged in higher rates of mother following, and mother following was associated with increased time on the nipple, suggesting that infants that experienced greater weaning-related stress increased their efforts to maintain proximity and contact with their mothers. Infants experiencing more frequent rejection uttered more distress vocalizations when being rejected; however, there was no relationship between rates of distress vocalizations and fGCM concentrations, suggesting a disassociation between behavioural and physiological stress responses to weaning. Elevated glucocorticoid concentrations during weaning may function to mobilize energy reserves and prepare the infant for continued maternal rejection and shortage of energetic resources.

Early experience affects the strength of vigilance for threat in rhesus monkey infants.

Both human and nonhuman primates exhibit a cognitive bias to social threat, but little is known about how this bias develops. We investigated the development of threat bias in free-ranging infant rhesus macaques (Macaca mulatta) at 3 months (n = 45) and 9 months (n = 46) of age. Three-month-olds did not display bias, but 9-month-olds exhibited increased maintenance of attention to threatening social stimuli. To examine whether the social environment affected this increased vigilance for threat, we collected behavioral data on maternal rank and protectiveness across the first 12 weeks of life for infants tested at 9 months. Among 9-month-olds, those of high-ranking and more protective mothers displayed greater vigilance for threat than those of lower-ranking and less protective mothers. These results demonstrate that infant social cognition is shaped by mothers both directly (via protectiveness) and indirectly (through social rank).

Variance-sensitive choice in lemurs: constancy trumps quantity.

Numerous studies have demonstrated that animals' tolerance for risk when foraging can be affected by changes in metabolic state. Specifically, animals on a negative energy budget increase their preferences for risk, while animals on a positive energy budget are typically risk-averse. The malleability of these preferences may be evolutionarily advantageous, and important for maximizing chances of survival during brief periods of energetic stress. However, animals adapted to living in unpredictable conditions are unlikely to benefit from risk-seeking strategies, and instead are expected to reduce energetic demands while maintaining risk-aversion. We measured risk preferences in lemurs, a group of primates restricted to the island of Madagascar. Lemurs have evolved diverse anatomical and behavioral traits for survival in a harsh and unpredictable ecology, and these traits have been explained as forms of anatomical and behavioral risk reduction. We therefore predicted that lemurs would also be risk-averse in a behavioral task that offered subjects a choice between a small certain reward, and an uncertain but potentially large reward. In Experiment 1, the average rewards associated with the constant and variable options were equal and lemurs exhibited high levels of risk-aversion, replicating a phenomenon that has been demonstrated in dozens of taxa. In Experiment 2, we gradually increased the average value of the variable option relative to the constant option. Lemurs' preferences tracked these changes and subjects became more risk-seeking as the risk premium increased. However, many subjects maintained high levels of risk-aversion even when the average payout of the variable option yielded double that of the constant option. These results are consistent with the notion that lemur cognition has evolved to minimize risk in an unpredictable island environment.