This paper investigates the Theory of Mind ability of psychopaths. Hap
pe's (1994) advanced test of Theory of Mind was presented to 25 psycho
paths and 25 non-psychopathic incarcerated controls. The psychopaths a
nd the non-psychopathic controls did not differ in their performance o
n this task. However, the psychopaths were performing significantly be
tter than Happe's most highly able adult autistic population. It was t
herefore concluded that the psychopath does not have a Theory of Mind
deficit. Speculations are made about the different developmental pathw
ays of autism and psychopathy and the differences in the empathy defic
it present in both these disorders.