B. The individual is at least age 18 years.
C. There is evidence of conduct disorder with onset before age 15 years.
D. The occurrence of antisocial behavior is not exclusively during the course of schizo-
phrenia or bipolar disorder.
Diagnostic Features
The essential feature of antisocial personality disorder is a pervasive pattern of disregard
for, and violation of, the rights of others that  begins in childhood or early adolescence and
continues into adulthood. This pattern  has also been referred to as psychopathy, sociopathy,
or dyssocial personality disorder.  Because deceit and manipulation are central features of an-
tisocial personality disorder, it  may be especially helpful to  integrate information acquired
from systematic clinical assessment with information collected from collateral sources.
For this diagnosis to be given, the individual  must be at least age 18 years (Criterion B)
and must have had a history of some symptoms of conduct disorder before age 15 years
(Criterion C). Conduct disorder involves a repe titive and persistent pattern of behavior in
which the basic rights of othe rs or major age-appropriate societal norms or rules are vio-
lated. The specific behaviors characteristic of  conduct disorder fall into one of four cate-
gories: aggression to people and animals, destruction of proper ty, deceitfulness or theft, or
serious violation of rules.