WALL STREET JOURNAL Column: …The field of neurocriminology—using neuroscience to understand and prevent crime—is revolutionizing our understanding of what drives “bad” behavior. More than 100 studies of twins and adopted children have confirmed that about half of the variance in aggressive and antisocial behavior can be attributed to genetics. Other research has begun to pinpoint which specific genes promote such behavior.
Brain-imaging techniques are identifying physical deformations and functional abnormalities that predispose some individuals to violence. In one recent study, brain scans correctly predicted which inmates in a New Mexico prison were most likely to commit another crime after release. Nor is the story exclusively genetic: A poor environment can change the early brain and make for antisocial behavior later in life.
Most people are still deeply uncomfortable with the implications of neurocriminology. Conservatives worry that acknowledging biological risk factors for violence will result in a society that takes a soft approach to crime, holding no one accountable for his or her actions. Liberals abhor the potential use of biology to stigmatize ostensibly innocent individuals. Both sides fear any seeming effort to erode the idea of human agency and free will… (more)
