Ecology stereotypes exist across societies and override race and family structure stereotypes.

Perceivers hold ecology stereotypes-beliefs about how the environments others live in shape their behavior. Drawing upon a life history perspective, we examine the stereotypes people hold about those who live in relatively harsh and unpredictable ecologies. First, across diverse demographic groups and societies (the United States, India, Japan, Romania, the United Kingdom), people believe that individuals who live in harsh and unpredictable environments engage in "faster" behaviors ( = 2,078; from .

Rational reasons for irrational beliefs.

According to many, we live in "posttruth" times, with the pervasiveness of falsehoods being an existential threat to democracy and the functioning of free societies. Why do people believe and propagate falsehoods? Current accounts focus on psychological deficiencies, heuristic errors, self-enhancing motivations, and motivations to sow chaos. Here, we advance a complementary, outwardly (vs.

Responses to political partisans are shaped by a COVID-19-sensitive disease avoidance psychology: A longitudinal investigation of functional flexibility.

How do natural changes in disease avoidance motivation shape thoughts about and behaviors toward ingroup and outgroup members? During the COVID-19 pandemic, political party affiliation has been a strong predictor in the United States of COVID-19-related opinions, attitudes, and behaviors. Using a six-wave longitudinal panel survey of representative Americans (on Prolific, = 1,124, from April 2020 to February 2021), we explored how naturally occurring changes across time in both risks of COVID-19 infection and people's disease avoidance motivation shaped thoughts about and behaviors toward Republicans and Democrats (e.g.

Suspicion About Suspicion Probes: Ways Forward.

Suspicion probes are the traditional tool employed to assess the extent to which participants suspect intentional misdirection or deception within the research context. A primary reason psychologists use deception in research settings is to prevent participants from altering their behavior in light of knowing what is being studied, which could undermine internal validity as well as threaten the generalizability of findings to the real world (i.e.

Beyond Observation: Manipulating Circumstances to Detect Affordances and Infer Traits.

Social perceivers seek to understand the opportunities and threats others potentially afford-for example, whether a teammate will behave tenaciously or a romantic partner, faithfully. We typically detect affordances and draw trait inferences by observing behaviors that reveal or predict others' likely intentions and characteristics. However, detection and inference from simple observation are often difficult (e.

Moving beyond unwise replication practices: The case of romantic motivation.

Replication research holds an increasingly important place in modern psychological science. If such work is to improve the state of knowledge rather than add confusion, however, replication attempts must be held to high standards of rigor. As an example of how replication attempts can add confusion rather than clarity, we consider an article by Shanks and colleagues (2015).

The behavioral ecology of cultural psychological variation.

Recent work has documented a wide range of important psychological differences across societies. Multiple explanations have been offered for why such differences exist, including historical philosophies, subsistence methods, social mobility, social class, climactic stresses, and religion. With the growing body of theory and data, there is an emerging need for an organizing framework.

The crowded life is a slow life: Population density and life history strategy.

The world population has doubled over the last half century. Yet, research on the psychological effects of human population density, once a popular topic, has decreased over the past few decades. Applying a fresh perspective to an old topic, we draw upon life history theory to examine the effects of population density.

Women selectively guard their (desirable) mates from ovulating women.

For women, forming close, cooperative relationships with other women at once poses important opportunities and possible threats-including to mate retention. To maximize the benefits and minimize the costs of same-sex social relationships, we propose that women's mate guarding is functionally flexible and that women are sensitive to both interpersonal and contextual cues indicating whether other women might be likely and effective mate poachers. Here, we assess one such cue: other women's fertility.

Ecology-driven stereotypes override race stereotypes.

Why do race stereotypes take the forms they do? Life history theory posits that features of the ecology shape individuals' behavior. Harsh and unpredictable ("desperate") ecologies induce fast strategy behaviors such as impulsivity, whereas resource-sufficient and predictable ("hopeful") ecologies induce slow strategy behaviors such as future focus. We suggest that individuals possess a lay understanding of ecology's influence on behavior, resulting in ecology-driven stereotypes.

Is She Angry? (Sexually Desirable) Women "See" Anger on Female Faces.

Intrasexual conflict may pose unique challenges for women. Whereas men's aggression tends to be physical and direct, women's tends to be relational and indirect, particularly when directed toward other women. Moreover, women's expressions of anger are often suppressed, perhaps particularly when other women are the targets.

Individual differences in fundamental social motives.

Motivation has long been recognized as an important component of how people both differ from, and are similar to, each other. The current research applies the biologically grounded fundamental social motives framework, which assumes that human motivational systems are functionally shaped to manage the major costs and benefits of social life, to understand individual differences in social motives. Using the Fundamental Social Motives Inventory, we explore the relations among the different fundamental social motives of Self-Protection, Disease Avoidance, Affiliation, Status, Mate Seeking, Mate Retention, and Kin Care; the relationships of the fundamental social motives to other individual difference and personality measures including the Big Five personality traits; the extent to which fundamental social motives are linked to recent life experiences; and the extent to which life history variables (e.

Homosexuality and Pro-Gay Ideology as Pathogens? Implications of a Disease-Spread Lay Model for Understanding Anti-Gay Behaviors.

Negative behaviors targeting gay men and lesbians range from violent physical assault to casting a vote against gay marriage, with very different implications for those targeted. Existing accounts of such actions, however, are unable to differentially predict specific anti-gay behaviors, leaving a large theoretical hole in the literature and hindering the design of effective interventions. We propose (a) that many sexually prejudiced laypersons conceptualize homosexuality and pro-gay ideology as "contaminants" analogous to infectious pathogens and (b) that anti-gay behaviors can thus be viewed as strategic attempts to prevent, contain, treat, or eradicate the "pathogens" of homosexuality and pro-gay ideology.

Beyond the negative: political attitudes and ideologies strategically manage opportunities, too.

Hibbing et al. use evolutionarily derived logic to suggest that political attitudes are related to responses to negative features of the environment. We suggest that the authors focus too narrowly on the negative and contend, instead, that a more comprehensive evolutionary approach focusing on people's responses to threats and opportunities will better account for variation in political attitudes.

The selfish goal meets the selfish gene.

The connection between selfish genes and selfish goals is not merely metaphorical. Many goals that shape contemporary cognition and behavior are psychological products of evolutionarily fundamental motivational systems and thus are phenotypic manifestations of genes. An evolutionary perspective can add depth and nuance to our understanding of "selfish goals" and their implications for human cognition and behavior.

Religion and intergroup conflict: findings from the Global Group Relations Project.

How might religion shape intergroup conflict? We tested whether religious infusion-the extent to which religious rituals and discourse permeate the everyday activities of groups and their members-moderated the effects of two factors known to increase intergroup conflict: competition for limited resources and incompatibility of values held by potentially conflicting groups. We used data from the Global Group Relations Project to investigate 194 groups (e.g.

Beauty at the ballot box: disease threats predict preferences for physically attractive leaders.

Why does beauty win out at the ballot box? Some researchers have posited that it occurs because people ascribe generally positive characteristics to physically attractive candidates. We propose an alternative explanation-that leadership preferences are related to functional disease-avoidance mechanisms. Because physical attractiveness is a cue to health, people concerned with disease should especially prefer physically attractive leaders.

From the bedroom to the budget deficit: mate competition changes men's attitudes toward economic redistribution.

How do economic recessions influence attitudes toward redistribution of wealth? From a traditional economic self-interest perspective, attitudes toward redistribution should be affected by one's financial standing. A functional evolutionary approach suggests another possible form of self-interest: That during periods of economic threat, attitudes toward redistribution should be influenced by one's mate-value-especially for men. Using both lab-based experiments and real-world data on voting behavior, we consistently find that economic threats lead low mate-value men to become more prosocial and supportive of redistribution policies, but that the same threats lead high mate-value men to do the opposite.

Would an obese person whistle vivaldi? Targets of prejudice self-present to minimize appearance of specific threats.

How do targets of stigma manage social interactions? We built from a threat-specific model of prejudice to predict that targets select impression-management strategies that address the particular threats other people see them to pose. We recruited participants from two groups perceived to pose different threats: overweight people, who are heuristically associated with disease and targeted with disgust, and Black men, who are perceived to be dangerous and targeted with fear. When stereotypes and prejudices toward their groups were made salient, overweight people (Studies 1 and 2) and Black men (Study 2) selectively prioritized self-presentation strategies to minimize apparent disease threat (wearing clean clothes) or physical-violence threat (smiling), respectively.

Putting all your eggs in one basket: life-history strategies, bet hedging, and diversification.

Diversification of resources is a strategy found everywhere from the level of microorganisms to that of giant Wall Street investment firms. We examine the functional nature of diversification using life-history theory-a framework for understanding how organisms navigate resource-allocation trade-offs. This framework suggests that diversification may be adaptive or maladaptive depending on one's life-history strategy and that these differences should be observed under conditions of threat.

Beyond prejudice to prejudices.

Different groups, because they are perceived to pose different threats, elicit different prejudices. Collective action by disadvantaged groups can amplify the perception of specific threats, with predictable and potentially counterproductive consequences. It is important to carefully consider the threat-based psychology of prejudice(s) before implementing any strategy intended to promote positive social change.

When nasty breeds nice: threats of violence amplify agreeableness at national, individual, and situational levels.

Humans have perennially faced threats of violence from other humans and have developed functional strategies for surviving those threats. Five studies examined the relation between threats of violence and agreeableness at the level of nations, individuals, and situations. People living in countries with higher military spending (Study 1) and those who chronically perceive threats from others (Study 2) were more agreeable.

Who Expressed What Emotion? Men Grab Anger, Women Grab Happiness.

When anger or happiness flashes on a face in the crowd, do we misperceive that emotion as belonging to someone else? Two studies found that misperception of apparent emotional expressions - "illusory conjunctions" - depended on the gender of the target: male faces tended to "grab" anger from neighboring faces, and female faces tended to grab happiness. Importantly, the evidence did not suggest that this effect was due to the general tendency to misperceive male or female faces as angry or happy, but instead indicated a more subtle interaction of expectations and early visual processes. This suggests a novel aspect of affordance-management in human perception, whereby cues to threat, when they appear, are attributed to those with the greatest capability of doing harm, whereas cues to friendship are attributed to those with the greatest likelihood of providing affiliation opportunities.