Childhood-onset CU shows a more aggressive and stable pattern of antisocial behavior with higher rates of CU<unk> , as well as more severe temperamental and neuropsychological risk factors relative to their adolescent-onset counterparts. Children with combined CD and ADHD are more likely to show features associated with psychopathy, but only in those who have high rates of CU<unk> . In support of the idea of lifetime persistence of CU<unk> , childhood-onset delinquency has been more strongly associated with psychopathic<unk>  than adolescent-onset delinquency. A longitudinal twin study of children with CD showed that high or increasing levels of CU<unk>  comorbid with CD presented with the most negative outcomes after twelve years in relationships with peers and family, as well as emotional and behavioral problems, as compared to those with low CU<unk>  or CD alone. In addition, adolescents with CU<unk>  have shown higher likelihood to commit a violent crime within a two-year period of their release from a correctional facility than those without CU<unk> . Antisocial youth with CU<unk>  tend to show less response to treatment. A systematic review found that CU<unk>  were associated with poorer outcomes in family-based interventions for conduct problems. This suggests pre-treatment data on CU<unk>  is clinically informative in terms of the prognostic status of children and young people with CU<unk> .
Callous and unemotional traits
Psychological resistance
Sense of impending doom
Ideas and delusions of reference
Emotional lability
Musical anhedonia
Anti-mask sentiment
Global perceptions of autism