The brains of psychopaths are structurally different from those without psychopathic traits. Using MRI scanners, scientists examined 120 people and found that an area of the brain called the striatum was ten per cent larger, on average, in adults with psychopathic tendencies. The striatum helps process feelings of motivation and reward. Psychopathic traits – as seen in Anthony Hopkins as Hannibal Lecter in Red Dragon – include a lack of remorse or empathy.
Olivia Choy, at the NTU Singapore, said: 'There can be differences in biology, in this case, the size of brain structures, between antisocial and non-antisocial individuals.'
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