Things I've
inherited: photographs, embroideries, handwork, crochet, knitting needles, old
pattern books, green eyes, blonde hair, a strong work ethic, various
emotional sensitivities, an old skill set and a stubborn belief that most things are worth mending.
Rather fewer meet the diagnostic criteria for research, which for the oppositional defiant type of conduct disorder seen in younger children require at least four specific behaviours to be present.7 The early onset
pattern — typically beginning at the age of 2 or 3 years — is associated with comorbid psychopathology such as hyperactivity and
emotional problems, language disorders, neuropsychological deficits such as poor attention and lower IQ, high heritability, 8 and lifelong antisocial behaviour.9 In contrast, teenage onset antisocial behaviour is not associated with other disorders or neuropsychological deficits, is more environmentally determined than
inherited, and tends not to persist into adulthood.9