“…Results indicate four important outcomes: (1) all studies that have measured relationships between CU traits and externalized disorders found significant links, especially with ODD, CD, e.g., [ 105 , 106 ], and with ADHD or ASD [ 75 ]. As compared with children with only ODD or CD, children with ODD or CD and high CU traits exhibit antisocial behavior more severe, stable, and varied in nature [ 107 ]; (2) comorbidities with internalized disorders and anxiety disorders were also found in most studies, e.g., [ 41 , 108 ]; only two did not find a significant relationship with high CU traits [ 4 , 69 ]; (3) out of the 18 studies that investigated emotional features associated with high CU traits, 15 highlighted difficulties in emotional regulation, e.g., [ 101 , 109 ] while only three studies found no link [ 72 , 107 , 110 ]. Research points out the problems of emotional regulation experienced by children with high CU traits, particularly in terms of anger, sadness, and lack of empathy, and emotional overmodulation [ 111 ].…”