Background: Although a general consensus holds that emotional reactivity in youth with conduct disorder (CD) symptoms arises as one of the main causes of successive aggression, it remains to be determined whether automatic emotional processing is altered in this population. Methods: We measured auditory event-related potentials (ERP) in 20 young…

Background: Psychopathic traits are associated with increases in antisocial behaviors such as aggression and are characterized by reduced empathy for others' distress. This suggests that psychopathic traits may also impair empathic pain sensitivity. However, whether psychopathic traits affect responses to the pain of others versus the self…

Background: While school-based anti-bullying programs are widely used, there have been few controlled trials of effectiveness. This study compared the effect of manualized School Psychiatric Consultation (SPC), CAPSLE (a systems and mentalization focused whole school intervention), and treatment-as-usual (TAU) in reducing aggression and…

Background: Empathy dysfunction is one of the hallmarks of psychopathy, but it is also sometimes thought to characterise autism spectrum disorders (ASD). Individuals with either condition can appear uncaring towards others. This study set out to compare and contrast directly boys with psychopathic tendencies and boys with ASD on tasks assessing…

Background: Boys with early onset of conduct disorder (CD), most of whom also meet diagnostic criteria of a comorbid attention deficit hyperactivity disorder (ADHD), tend to exhibit high levels of aggression throughout development. While a number of functional neuroimaging studies on emotional processing have been performed in antisocial adults,…

Background: Although the prevalence of bully/victim problems in school-age children and adolescents has been investigated in many countries, only a few studies have been carried out among younger children. This study examines social behaviors and peer relationships of children involved in bully/victim problems in kindergarten. Methods: Three…

Background: Research on children's loneliness has been conducted mostly in Western, especially North American, cultures. The purpose of the study was to examine relations between loneliness and social adaptation among children and adolescents in four different societies. Methods: A total of 2263 children from grade 3 to grade 6, aged 9 to 12…

Background: While most youth report positive experiences and activities online, little is known about experiences of Internet victimization and associated correlates of youth, specifically in regards to Internet harassment. Methods: The Youth Internet Safety Survey is a cross-sectional, nationally representative telephone survey of young regular…

Background: Some research findings have suggested that group day-care may be associated with an increased risk for physical aggression. Methods: Cross-sectional maternal questionnaire data from a representative sample of 3431 Canadian 2- to 3-year-olds were used to compare rates of physical aggression shown by children looked after by their own…