[The contribution of forensic neuroscience to psychopathy]

Diagnosing psychopathy in an intercultural setting: Applications and implications in postcolonial contemporary Mayotte

International scientific research has extensively studied psychopathy, but few studies focus on an intercultural and postcolonial context. Mayotte, a French overseas collectivity located in East Africa, offers a unique opportunity to study the application and effects of psychopathy diagnosis in the criminal justice field within a social context shaped by colonial legacy. This research uses a mixed-method approach, combining quantitative and qualitative data, to show that in Mayotte, the majority of individuals diagnosed with psychopathy are young, low-income individuals who act in groups. Among them are minors, and the majority have no prior criminal history. This article provides a complementarist reflection on this phenomenon, informed by immersive field anthropology and theoretical contributions from psychology, sociology, and criminology. Through an inductive research process, this study posits the hypothesis that diagnoses of psychopathy in post-colonial contexts may be influenced by complex determinants rooted in collective history and contemporary power relations.

Déficits précoces de l'empathie et psychopathologie Early empathy deficits and psychopathology

Empathy is a complex social-cognitive ability that is best understood by distinguishing its emotional, cognitive and motivational dimensions, which from early childhood interact between the child and her/his social environment. To date, among the many factors that are acknowledged to influence the development of empathy, children's temperament and parenting behaviors have been identified as interacting in predicting the extent to which children demonstrate empathic responses. Recent studies in developmental social neuroscience cast light on the neural networks engaged in the development of each of the dimensions that constitute empathy, which are needed to navigate social interaction and establishing positive social relationships. Indeed, early deficits in empathic processes can lead to difficulties in socialization, particularly associated with reduced attention to others' emotions, especially when they are suffering, a lesser degree of remorse and guilt, and a greater tendency to ignore social norms or break the rules. Difficulties in socialization are particularly visible in two well-known developmental disorders: children with autism spectrum disorders (ASD) and children with conduct disorder and callous unemotional traits (CU). This paper provides a critical and selective review of recent empirical studies in psychopathology and developmental neuroscience by addressing the dimensions underlying empathy, specifically emotional sharing and caring for others. For children with ASD, some studies report that they pay less attention to another person in distress. However, functional neuroimaging studies conducted with ASD adolescents indicate that the emotional dimension appears to be preserved, but a lack of emotional self-regulation may impair them from experiencing empathic concern. Children with conduct disorder and CU traits clearly manifest a reduced autonomic nervous system response to others' distress or suffering. This may account for their disregard or contempt for others' well-being and social norms. Functional neuroimaging studies show that atypical patterns of brain activity at 15 months of age can predict later severe conduct disorder. Neural regions engaged in emotional processing such as the anterior cingulate cortex, insula and amygdala shown reduced activation to empathy-eliciting stimuli in children with CU. Finally, the genetic nature of CU traits is highlighted in several studies. We conclude by proposing several avenues for developmental research to identify biomarkers from an early age and by inviting to focus on psychological interventions with those populations accordingly.