CLICK HERE: Interview of Dr. Rebecca Waller – Callousness and Unemotionality, Nature AND Nurture

Callousness and unemotionality are defining psychopathic traits.  Are they inherited?  Is there a genetic link to them?  Can the behavior of young people displaying these traits be affected by how caregivers raise them?  Professor Rebecca Waller of the University of Pennsylvania conducts research on this topic.