I’m proud to show off a drawing done by my good friend, the artist Katie Kelleher. The picture below is entitled ‘Weeping Neurons Lack Potential’.
Diffusion tensor imaging (DTI) is a technique used to measure the integrity of white matter tracts within the brain. In the brains of psychopaths, and no doubt with other personality/developmental disorders, white matter is often poorly developed, which hinders neuronal communication. DTI will often measure the integrity of white matter by noting how easily water could diffuse through the tract. If there is no damage, the DTI score would be 1.
But tracts that lack mature white matter would score less than 1, and in these tracts it could be harder to generate an action potential or it’ll be slower than if the tract was mature.