The empathic brain: how, when and why? Frédérique de Vignemont and Tania Singer explore the neural mechanisms underlying empathy, questioning the assumption that empathy is automatically triggered by observing others' emotions. They propose a contextual approach, suggesting that empathy is modulated by various factors, including the emotional content, the relationship between the empathizer and the target, and situational context. Empathy is not merely a passive response but involves complex appraisal processes that determine whether and how strongly an individual feels another's emotions. The authors define empathy as a shared affective state that involves understanding another's emotional experience, which is isomorphic to one's own. They distinguish empathy from related phenomena such as emotional contagion, sympathy, and cognitive perspective-taking. Empathy is linked to both epistemological and social roles. Epistemologically, it allows individuals to predict others' future actions and understand their emotional states. Socially, it drives prosocial behavior, cooperation, and effective communication. Empathy is associated with shared neural networks, particularly in the insula and anterior cingulate cortex, which are activated when observing others' emotions. However, the strength and timing of these responses depend on contextual factors. For example, empathy-related brain activity is modulated by the perceived fairness of the situation, the emotional state of the empathizer, and the relationship between the empathizer and the target. The authors propose two models of empathy processing: the early appraisal model, where empathy is not automatically triggered but depends on contextual evaluation, and the late appraisal model, where empathy is automatically activated but can be modulated later. They argue that empathy is not solely driven by motor systems but also involves somatosensory and limbic structures. Empathy plays a crucial role in social behavior, influencing cooperation, altruism, and moral judgment. However, it is not the only motivation for prosocial behavior, and individuals may act out of other motivations, such as moral conviction or opposition to injustice. The authors conclude that empathy is a complex, context-dependent phenomenon that involves both neural and social mechanisms.The empathic brain: how, when and why? Frédérique de Vignemont and Tania Singer explore the neural mechanisms underlying empathy, questioning the assumption that empathy is automatically triggered by observing others' emotions. They propose a contextual approach, suggesting that empathy is modulated by various factors, including the emotional content, the relationship between the empathizer and the target, and situational context. Empathy is not merely a passive response but involves complex appraisal processes that determine whether and how strongly an individual feels another's emotions. The authors define empathy as a shared affective state that involves understanding another's emotional experience, which is isomorphic to one's own. They distinguish empathy from related phenomena such as emotional contagion, sympathy, and cognitive perspective-taking. Empathy is linked to both epistemological and social roles. Epistemologically, it allows individuals to predict others' future actions and understand their emotional states. Socially, it drives prosocial behavior, cooperation, and effective communication. Empathy is associated with shared neural networks, particularly in the insula and anterior cingulate cortex, which are activated when observing others' emotions. However, the strength and timing of these responses depend on contextual factors. For example, empathy-related brain activity is modulated by the perceived fairness of the situation, the emotional state of the empathizer, and the relationship between the empathizer and the target. The authors propose two models of empathy processing: the early appraisal model, where empathy is not automatically triggered but depends on contextual evaluation, and the late appraisal model, where empathy is automatically activated but can be modulated later. They argue that empathy is not solely driven by motor systems but also involves somatosensory and limbic structures. Empathy plays a crucial role in social behavior, influencing cooperation, altruism, and moral judgment. However, it is not the only motivation for prosocial behavior, and individuals may act out of other motivations, such as moral conviction or opposition to injustice. The authors conclude that empathy is a complex, context-dependent phenomenon that involves both neural and social mechanisms.