Across two studies, we tested the relationship between the stereotype dimensions of sociability, morality, and competence and the two dimensions of humanness (human nature and human uniqueness). Study 1 considered real groups and revealed that sociability had greater power than morality in predicting human nature. For some groups, sociability also trumped competence in predicting human nature. By contrast, the attribution of human uniqueness was predicted by competence and morality. In Study 2, participants read a scenario depicting an unfamiliar group in stereotypical terms. Results showed that competence and sociability were the strongest predictors of human uniqueness and human nature, respectively. Although with nuances, both studies revealed that sociability, morality, and competence relate differently to the two dimensions of humanness.

Theoretical approaches to dehumanization consider civility to be an attribute of human uniqueness (HU). However, studies that explore the links between civility and humanness are scarce. More precisely, the present research tests whether there is a consistent relationship between civility and HU. Method and results: The first study (N = 192; M_age = 19.91; SD = 2.70; 69% women) shows that individuals infer more HU traits in the agents of civil behaviors compared to agents of other positive behaviors that are not related to civility. The second study (N = 328; M_age = 19.69; SD = 3.65; 77% women) reveals that uncivil and immoral behaviors displayed a similar pattern of inference of HU traits; however, moral behaviors were more associated with human nature than civil behaviors. Conclusions: Overall, results confirmed that civil behaviors facilitate the inference of humanness, specifically of HU traits, and that civil and moral behaviors are not equivalent in terms of the human inferences to which they lead.

Previous research shows that civility norms, such as morality norms, are necessary navigational charts to orient an individual in social life. However, there are no studies that establish the extent to which people consider civility norms as objective facts in a similar way to how many moral norms are considered. This research examines the perceived objectivity of civility norms in contrast to morality norms. The results show, firstly, that immoral norms are perceived to be significantly more objective than moral norms, but the opposite occurs with civility norms. Second, there is a high correlation between what participants consider objective and what they believe the rest of their community considers objective. However, this correlation was greater for immoral behaviors than for moral behaviors, and the opposite occurred for civility behaviors. Finally, participants estimated that the percentage of people in their group who engage in uncivil behaviors is higher than those who engage in immoral behaviors.

Uncivil behavior involves an attack on social norms related to the protection of public property and respect for community life. However, at the same time, the low-frequency and relatively low-intensity damage caused by most of these behaviors could lead to incivilities being considered a typically human action. The purpose of this set of studies is to examine the automatic associations that people establish between humanness and both civic and uncivil behaviors. Across three studies, uncivil behaviors were more strongly associated with human pictures than animal pictures (study 1) and with human-related words than animal-related words (study 2). We replicated study 2 with uncivil behaviors that do not prime graphically human beings (study 3). Overall, our results showed that uncivil behaviors and civic behaviors were clearly associated with human concepts. Our findings have direct implications for the conceptualization of humanness and its denial.

The environment determines the way in which people interpret social life. In fact, depending on the context, multiple potential attitudes can be evoked by an attitude object. The purpose of this research is to test whether the perception of uncivil behavior and its perpetrators is affected by the physical environment in which this behavior is framed. Specifically, we explore the role of two environmental dimensions – naturalness and openness – in the way we evaluate behaviors that transgress social norms and their agents. In a pilot study, participants (N = 124) considered counter-normative behaviors to be more uncivil and their perpetrators to be less human in natural contexts. In the main study, participants (N = 199) evaluated the naturalness and openness dimensions separately and it was found that naturalness is the one that most influences the negative perception of uncivil behavior and the only one that has an effect on the dehumanization process. The results of this research support the idea that the physical environment plays an important role in the perception of uncivil behavior and the dehumanized view of its agent. The importance of the results within the fields of deviant behavior, social psychology, and environmental psychology are discussed.