Similarities and differences between vegetarians and vegans in motives for meat-free and plant-based diets.

Plant-based diets are quickly gaining popularity for their benefits to animal welfare, the environment, and public health. Compared to meat-eaters, meat-abstainers such as vegetarians and vegans are especially motivated by animal rights and the environment. However, little is known about the motivational and psychological factors that distinguish vegetarians from vegans, and what prevents vegetarians to shift towards a fully plant-based diet.

Are we smart enough to remember how smart animals are?

Some theoretical perspectives suggest people overestimate animals' mental capacities (anthropomorphism), while others suggest the reverse (mind-denial). However, studies have generally not employed objective criteria against which the accuracy or appropriateness of people's judgments about animals can be tested. We employed memory paradigms, in which judgments are clearly right or wrong, in nine experiments (eight preregistered; = 3,162).

Intergroup contact is reliably associated with reduced prejudice, even in the face of group threat and discrimination.

Intergroup contact provides a reliable means of reducing prejudice. Yet, critics suggested that its efficacy is undermined, even eliminated, under certain conditions. Specifically, contact may be ineffective in the face of threat, especially to (historically) advantaged groups, and discrimination, experienced especially by (historically) disadvantaged groups.

Changing minds about minds: Evidence that people are too sceptical about animal sentience.

Our relationships with other animals are governed by how we view their capacity for sentience and suffering. However, there is currently little agreement as to whether people's beliefs about animal minds are largely accurate or inaccurate. We used an innovative task to examine how people update their beliefs in response to noisy but informative clues about animal minds.

Speciesism in everyday language.

Speciesism, like other forms of prejudice, is thought to be underpinned by biased patterns of language use. Thus far, however, psychological science has primarily focused on how speciesism is reflected in individuals' thoughts as opposed to wider collective systems of meaning such as language. We present a large-scale quantitative test of speciesism by applying machine-learning methods (word embeddings) to billions of English words derived from conversation, film, books, and the Internet.

Unpalatable truths: Commitment to eating meat is associated with strategic ignorance of food-animal minds.

Animal minds are of central importance to debates about their rights and welfare. Remaining ignorant of evidence that animals have minds is therefore likely to facilitate their mistreatment. Studying samples of adults and students from the UK and US we found that, consistent with motivational perspectives on meat consumption, those who were more (vs.

The role of meat appetite in willfully disregarding factory farming as a pandemic catalyst risk.

Most infectious diseases are zoonotic, "jumping" from animals to humans, with COVID-19 no exception. Although many zoonotic transmissions occur on industrial-scale factory farms, public discussions mainly blame wild animal ("wet") markets or focus on reactionary solutions, posing a psychological obstacle to preventing future pandemics. In two pre-registered studies early in the 2020 pandemic, we examined whether British adults fail to recognize factory farming in causing epidemics, and whether such dismissal represents motivated cognition.

Intergroup contact, social dominance, and environmental concern: A test of the cognitive-liberalization hypothesis.

Intergroup contact is among the most effective ways to improve intergroup attitudes. Although it is now beyond any doubt that contact can reduce prejudice, in this article we provide evidence that its benefits can extend beyond intergroup relations-a process referred to as cognitive liberalization (Hodson, Crisp, Meleady, & Earle, 2018). We focus specifically on the impact of intergroup contact on environmentally relevant attitudes and behavior.

The Diversity Challenge for High and Low Authoritarians: Multilevel and Longitudinal Effects Through Intergroup Contact and Threat.

The current studies integrate different frameworks on the positive and negative consequences of ethnic diversity for intergroup relations. Using a nationally stratified sample of Dutch majority members ( N = 680) from 50 cities in the Netherlands, Study 1 demonstrated that objective diversity was indirectly related to prejudice and to generalized, ingroup, and outgroup trust, through more positive and more negative contact. These indirect effects tended to be stronger for high versus low authoritarians.

On Self-Love and Outgroup Hate: Opposite Effects of Narcissism on Prejudice via Social Dominance Orientation and Right-Wing Authoritarianism.

Previous research has obtained mixed findings as to whether feelings of self-worth are positively or negatively related to right-wing ideological beliefs and prejudice. We propose to clarify the link between self-worth and ideology by distinguishing between narcissistic and non-narcissistic self-evaluations as well as between different dimensions of ideological attitudes. Four studies, conducted in three different socio-political contexts: the UK (Study 1, N = 422), the US (Studies 2 and 3, Ns = 471 and 289, respectively), and Poland (Study 4, N = 775), investigated the associations between narcissistic and non-narcissistic self-evaluations, social dominance orientation (SDO), right-wing authoritarianism (RWA), and ethnic prejudice.

Intergroup Contact and Social Change: Implications of Negative and Positive Contact for Collective Action in Advantaged and Disadvantaged Groups.

Previous research has shown that (a) positive intergroup contact with an advantaged group can discourage collective action among disadvantaged-group members and (b) positive intergroup contact can encourage advantaged-group members to take action on behalf of disadvantaged outgroups. Two studies investigated the effects of negative as well as positive intergroup contact. Study 1 ( n = 482) found that negative but not positive contact with heterosexual people was associated with sexual-minority students' engagement in collective action (via group identification and perceived discrimination).

The personality basis of aggression: The mediating role of anger and the moderating role of emotional intelligence.

High neuroticism and low agreeableness have been found to predict higher levels of aggression through an increase of negative emotions such as anger. However, previous research has only investigated these indirect associations for physical aggression, whereas evidence for such indirect effects on other types of aggression (i.e.

The Relationships Between Internal and External Threats and Right-Wing Attitudes: A Three-Wave Longitudinal Study.

The interplay between threat and right-wing attitudes has received much research attention, but its longitudinal relationship has hardly been investigated. In this study, we investigated the longitudinal relationships between internal and external threats and right-wing attitudes using a cross-lagged design at three different time points in a large nationally representative sample (N = 800). We found evidence for bidirectional relationships.

The relationship between right-wing ideological attitudes and psychological well-being.

The relationship between right-wing ideological attitudes and psychological well-being has been intensively studied. Although some studies supported the hypothesis that right-wing attitudes are negatively related with well-being, other research yielded positive or nonsignificant relationships. We conducted a meta-analysis (total samples = 97, total N = 69,221) of measures of well-being, including positive and negative affect, life satisfaction, self-esteem, and intrinsic goal pursuit.

Internal and external threat in relationship with right-wing attitudes.

Objective: Previous studies on the relationship between threat and right-wing attitudes have tended to focus on either internal threat, emanating from one's private life, or external threat, originating from society. However, these studies failed to examine whether these types of threats constitute two distinctive dimensions and which of these threats is most closely related to right-wing attitudes.

Method: In order to explore the dimensions underlying threat, a factor analysis on a variety of threat scales was conducted (Study 1; N = 300).

Longitudinal intergroup contact effects on prejudice using self- and observer-reports.

Longitudinal effects of intergroup contact on prejudice were investigated in a sample of 65 young adults (Sample 1) and a sample of their close friends (Sample 2, N= 172), adopting a full cross-lagged panel design. We first validated the self-report measure of intergroup contact from Sample 1 with observer ratings from Sample 2 by demonstrating that self-reports and observer ratings of contact were highly correlated. Moreover, we obtained significant cross-lagged effects of intergroup contact on prejudice with both contact measures, thereby providing a second validation for the use of self-reports of intergroup contact.

A step into the anarchist's mind: examining political attitudes and ideology through event-related brain potentials.

The present study investigates patterns of event-related brain potentials following the presentation of attitudinal stimuli among political moderates (N=12) and anarchists (N=11). We used a modified oddball paradigm to investigate the evaluative inconsistency effect elicited by stimuli embedded in a sequence of contextual stimuli with an opposite valence. Increased late positive potentials (LPPs) of extreme political attitudes were observed.

Opening closed minds: the combined effects of intergroup contact and need for closure on prejudice.

Five studies tested whether need for closure (NFC) moderates the relation between intergroup contact and prejudice toward immigrants. The results consistently showed that intergroup contact was more strongly associated with reduced levels of prejudice among people high in NFC compared to people low in NFC. Studies 1 (N = 138 students) and 2 (N = 294 adults) demonstrated this moderator effect on subtle, modern, and blatant racism.