Third-party punishment by preverbal infants

The good, the rich, and the powerful: How young children compensate victims of moral transgressions depending on moral character, wealth, and social dominance

Theories of justice suggest that it serves two main purposes: punishment and restoration. Although punishment emerges early and has been well-documented, little is known about the contexts in which young children engage in restorative practices like compensation for victims. The current study investigated whether children's engagement in compensation and punishment (which often involve a redistribution of resources) was sensitive to characteristics of the perpetrator and victim known to shape distributive justice decisions (decisions about how resources should be distributed), such as social dominance, resource inequality, and moral character. A total of 54 children aged 3 to 7 years completed a series of moral judgment experiments. Each experiment featured interactions between a perpetrator and a victim, ending with the perpetrator stealing the victim's toy. In Experiment 1 (N = 44), social dominance did not affect punishment or compensation overall, but older children compensated the dominant victim (but not the subordinate victim) less than younger children. In Experiment 2 (N = 42), children compensated the poor victim more than the rich victim, but they did not punish the rich perpetrator more than the poor perpetrator. In Experiment 3 (N = 45), children compensated the victim with a good moral character more than the victim with a bad moral character, and the victim's moral character did not influence punishment. Altogether, these findings offer new insights into how children resort to compensation for victims as a complement to, rather than an alternative to, punishment.

Third-party punishment-like behavior in a rat model

Third-party punishment (TPP) is an altruistic behavior or sense willing to punish transgressors as a third party not directly involved in the transgression. TPP is observed worldwide, regardless of tradition and culture, and is essential for morality in human society. Moreover, even preverbal infants display TPP-like judgement, suggesting that TPP is evolutionarily conserved and innate. Thus, it is possible that non-human animals display TPP-like behavior, although TPP has been said to be human-specific. We investigated whether or not male mature Wistar rats displayed TPP-like behaviors when they witnessed deadly aggression by an unknown aggressive mouse toward another unknown victim mouse. Normally reared rats did not display TPP-like behaviors, but rats reared with extensive affectionate handling by human caretakers as beloved pets contacted the unknown aggressive mice in a gentle manner leading to reduced aggression toward the unknown victim mice, even when the aggressive mice fought back. Furthermore, the handled rats touched unknown rat pups that were drowning in water and anesthesia-induced comatose rats more frequently than control rats. These findings suggest a possibility that TPP is not in fact human-specific and innate but rather an acquired behavior that flourishes in affectionate circumstances.

The origins of moral sensitivities: Probing infants' expectations, evaluations, generalization, and enforcement of moral norms

Identifying the origins of moral sensitivities, and their elaboration, within infancy and early childhood is a challenging task, given inherent limitations in infants' behavior. Here, I argue for a multi-pronged, multi-method approach that involves cleaving the moral response at its joints. Specifically, I chart the emergence of infants' moral expectations, evaluations, generalization and enforcement, demonstrating that while many moral sensitivities are present in the second year of life, these sensitivities are closely aligned with, and likely driven by, infants' everyday experience. Moreover, qualitative differences exist between the moral responses that are present in infancy and those of later childhood, particularly in terms of enforcement (i.e., a lack of punishment in infancy). These findings set the stage for addressing outstanding critical questions regarding moral development, that include identifying discrete causal inputs to early moral cognition, identifying whether moral cognition is distinct from social cognition early in life, and explaining gaps that exist between moral cognition and moral behavior in development.

Neural and Physiological Correlates of Prosocial Behavior: Temporoparietal Junction Activity in 3-year-old Children

Although the development of prosocial behavior has been widely studied from the behavioral aspect, the neural mechanisms underlying prosocial behavior in the early stages of development remain unclear. Therefore, this study investigated the neural mechanisms underlying the emergence of prosocial behavior in 3-year-old children. Brain activity in the medial pFC and right TPJ (rTPJ) and facial expression activity, which are related to the ability to infer others' mental states (mentalizing), during the observation of prosocial and antisocial scenes were measured using functional near-infrared spectroscopy and electromyography, respectively. Subsequently, the children's helping and comforting behaviors toward an experimenter were assessed to examine prosocial behavioral tendencies. A correlation analysis revealed that the children who showed stronger activity levels in the rTPJ while observing prosocial scenes had more immediate helping behaviors toward others than those who did not show stronger response levels. Moreover, the amount of facial expression activity correlated with prosocial behavior, including both helping and comforting behaviors. These results suggest that the development of mentalizing ability and the social evaluation of others' actions, mediated by the rTPJ, contribute to the emergence of prosocial behavior.

Morality in the anthropocene: The perversion of compassion and punishment in the online world

Although much of human morality evolved in an environment of small group living, almost 6 billion people use the internet in the modern era. We argue that the technological transformation has created an entirely new ecosystem that is often mismatched with our evolved adaptations for social living. We discuss how evolved responses to moral transgressions, such as compassion for victims of transgressions and punishment of transgressors, are disrupted by two main features of the online context. First, the scale of the internet exposes us to an unnaturally large quantity of extreme moral content, causing compassion fatigue and increasing public shaming. Second, the physical and psychological distance between moral actors online can lead to ineffective collective action and virtue signaling. We discuss practical implications of these mismatches and suggest directions for future research on morality in the internet era.

Preschoolers' retrospective and prospective judgements of immanent justice following distributive actions

Prior research provided evidence for retrospective and prospective judgements of immanent justice in adults, but the developmental origins of judgements of immanent justice remain unknown. Both retrospective and prospective judgements were investigated in preschool age, using explicit and implicit measures. In Experiment 1, 2.5- and 4-year-olds were first shown events in which one agent distributed resources fairly or unfairly, and then they saw test events in which both distributors were damaged by a misfortune. Later, they were presented with a verbal task, in which they had to respond to two questions on evaluation of the deservingness, by using explicit measures. All children were likely to approve of deserved outcomes when deeds and outcomes were congruent (i.e., unfair distributor-misfortune), and only older ones were likely to disapprove when they were incongruent (i.e., fair distributor-misfortune). In Experiment 2, 4-year-olds after seeing familiarization events of Experiment 1, were presented with two verbal questions to explore prospective judgements of immanent justice, by using explicit measures. In Experiment 3, 4-year-olds were first shown familiarization events of Experiment 1 and listened to respective narratives, then before the outcome was revealed they were assessed with a reaching task to investigate prospective judgements of immanent justice, by using implicit measures. Children reached the image depicting a bad outcome for the unfair distributor, and that illustrated a good outcome for the fair distributor. The results of the last two experiments demonstrated a fine ability to make prospective judgements at 4 years of life, and found that they were to be more prone to apply immanent justice reasoning to positive outcomes following good actions. Taken together, these results provide new evidence for preschoolers' retrospective and prospective judgements of immanent justice.

Anger and disgust shape judgments of social sanctions across cultures, especially in high individual autonomy societies

When someone violates a social norm, others may think that some sanction would be appropriate. We examine how the experience of emotions like anger and disgust relate to the judged appropriateness of sanctions, in a pre-registered analysis of data from a large-scale study in 56 societies. Across the world, we find that individuals who experience anger and disgust over a norm violation are more likely to endorse confrontation, ostracism and, to a smaller extent, gossip. Moreover, we find that the experience of anger is consistently the strongest predictor of judgments of confrontation, compared to other emotions. Although the link between state-based emotions and judgments may seem universal, its strength varies across countries. Aligned with theoretical predictions, this link is stronger in societies, and among individuals, that place higher value on individual autonomy. Thus, autonomy values may increase the role that emotions play in guiding judgments of social sanctions.

Preverbal infants' understanding of social norms

Social norms are foundational to human cooperation and co-existence in social groups. A crucial marker of social norms is that a behavior is not only shared, but that the conformity to the behavior of others is a basis for social evaluation (i.e., reinforcement and sanctioning), taking the is, how individuals usually behave, to an ought, how individuals should behave to be socially approved by others. In this preregistered study, we show that 11-month-old infants grasp this fundamental aspect about social norms already in their first year. They showed a pupillary surprise response for unexpected social responses, namely the disapproval and exclusion of an individual who showed the same behavior like others or the approval and inclusion of an individual who behaved differently. That preverbal infants link the conformity with others' behavior to social evaluations, before they respond to norm violations themselves, indicates that the foundations of social norm understanding lie in early infancy.

The science of justice: The neuropsychology of social punishment

The social punishment (SP) of norm violations has received much attention across multiple disciplines. However, current models of SP fail to consider the role of motivational processes, and none can explain the observed behavioral and neuropsychological differences between the two recognized forms of SP: second-party punishment (2PP) and third-party punishment (3PP). After reviewing the literature giving rise to the current models of SP, we propose a unified model of SP which integrates general psychological descriptions of decision-making as a confluence of affect, cognition, and motivation, with evidence that SP is driven by two main factors: the amount of harm (assessed primarily in the salience network) and the norm violator's intention (assessed primarily in the default-mode and central-executive networks). We posit that motivational differences between 2PP and 3PP, articulated in mesocorticolimbic pathways, impact final SP by differentially impacting the assessments of harm and intention done in these domain-general large-scale networks. This new model will lead to a better understanding of SP, which might even improve forensic, procedural, and substantive legal practices.

Psychosocial factors as predictors of aggressive behaviors among primary school learners

The study investigated psychosocial factors as predictors of aggressive behaviors among primary school learners in Ekiti State, Nigeria. The study used a survey research design. All public primary school learners in Ekiti State formed the target population. A sample size of one thousand three hundred and fifty (1350) respondents was selected using a multistage sampling procedure, consisting of 641 males (47.5%) and 709 females (52.5%), ages 9-13 years, who participated in the study. A self-report instrument tagged "Learners' Aggressive Behaviours Questionnaire" (α indexes of .81, .70, .77, and .84 for the four components respectively) was used for data collection. The data were analyzed using multiple regression analysis at a 5% level of significance. The empirical findings revealed that parenting styles, peer influence, and self-control significantly predicted learners' aggressive behavior. Recommendations for curbing aggressive behavior among learners were highlighted.

Development of beliefs about censorship

Across four studies (total N = 431), we examined 5- to 10-year-old children's choices to censor depictions of harm. In all studies, children learned about (fictional) movies that depicted harmful behaviors and decided whether specific audiences should be allowed to watch those movies. In Study 1, children often censored depictions of harms and did so similarly when considering both themselves and another hypothetical child as the viewer. At the same time, children did not censor indiscriminately: Children censored depictions of intentional harms more than accidental harms and, in Study 2, children (and adults; N = 101) censored harms (especially intentional ones) more from younger versus older audiences. In Studies 3 and 4, we more directly tested children's motivations for censoring harms, examining dual potential motivations of 1) preventing viewers from feeling sad; and 2) preventing viewers from being inspired to engage in harmful behaviors. We found that children who were motivated to avoid inspiring harmful behaviors were especially likely to censor depictions of harmful intentions. Together, our results indicate that children make sophisticated decisions regarding censorship and underscore an early emerging motivation to disrupt cascades of harmful behavior. These findings hold implications for children's thinking about the psychological and behavioral consequences of harm and for children's thinking about the potential effects of media on themselves and others.

Human and animal dominance hierarchies show a pyramidal structure guiding adult and infant social inferences

This study investigates the structure of social hierarchies. We hypothesized that if social dominance relations serve to regulate conflicts over resources, then hierarchies should converge towards pyramidal shapes. Structural analyses and simulations confirmed this hypothesis, revealing a triadic-pyramidal motif across human and non-human hierarchies (114 species). Phylogenetic analyses showed that this pyramidal motif is widespread, with little influence of group size or phylogeny. Furthermore, nine experiments conducted in France found that human adults (N = 120) and infants (N = 120) draw inferences about dominance relations that are consistent with hierarchies' pyramidal motif. By contrast, human participants do not draw equivalent inferences based on a tree-shaped pattern with a similar complexity to pyramids. In short, social hierarchies exhibit a pyramidal motif across a wide range of species and environments. From infancy, humans exploit this regularity to draw systematic inferences about unobserved dominance relations, using processes akin to formal reasoning.

Predicting child aggression: The role of parent and child endorsement of reactive aggression across 13 cultural groups in 9 nations

Parent and child endorsement of reactive aggression both predict the emergence of child aggression, but they are rarely studied together and in longitudinal contexts. The present study does so by examining the unique predictive effects of parent and child endorsement of reactive aggression at age 8 on child aggression at age 9 in 1456 children from 13 cultural groups in 9 nations. Multiple group structural equation models explored whether age 8 child and parent endorsement of reactive aggression predicted subsequent age 9 child endorsement of reactive aggression and child aggression, after accounting for prior child aggression and parent education. Results revealed that greater parent endorsement of reactive aggression at age 8 predicted greater child endorsement of aggression at age 9, that greater parent endorsement of reactive aggression at age 8 uniquely predicted greater aggression at age 9 in girls, and that greater child endorsement of reactive aggression at age 8 uniquely predicted greater aggression at age 9 in boys. All three of these associations emerged across cultures. Implications of, and explanations for, study findings are discussed.

Preverbal infants' reactions to third-party punishments and rewards delivered toward fair and unfair agents

Rewarding individuals who distribute resources fairly and punishing those who distribute resources unfairly may be very important actions for fostering cooperation. This study investigated whether 9-month-olds have some expectations concerning punishments and rewards that follow distributive actions. Infants were shown simple animations and were tested using the violation-of-expectation paradigm. In Experiment 1, we found that infants looked longer when they saw a bystander delivering a corporal punishment to a 'fair distributor,' who distributed some windfall resources equally to the possible recipients, rather than to an 'unfair distributor,' who distributed the resources unequally. This pattern of looking times was reversed when, in Experiment 2, punishments were replaced with rewards. These findings suggest an early emergence of expectations about punishing and rewarding actions in third-party contexts, and they help to evaluate competing claims about the origins of a sense of fairness.

Dangerous Ground: One-Year-Old Infants are Sensitive to Peril in Other Agents' Action Plans

Do infants appreciate that other people's actions may fail, and that these failures endow risky actions with varying degrees of negative utility (i.e., danger)? Three experiments, including a pre-registered replication, addressed this question by presenting 12- to 15-month-old infants (N = 104, 52 female, majority White) with an animated agent who jumped over trenches of varying depth towards its goals. Infants expected the agent to minimize the danger of its actions, and they learned which goal the agent preferred by observing how much danger it risked to reach each goal, even though the agent's actions were physically identical and never failed. When we tested younger, 10-month-old infants (N = 102, 52 female, majority White) in a fourth experiment, they did not succeed consistently on the same tasks. These findings provide evidence that one-year-old infants use the height that other agents could fall from in order to explain and predict those agents' actions.