Pedophiles Have Brain Damage?

Pedophiles have considerably less brain white matter than people not sexually attracted to children, according to a study from the Centre for Addiction and Mental Health in Toronto.

The study, published in the Journal of Psychiatric Research indicated that sex offenders subjected to sensitive MRI scans had less white matter in the frontal lobes of the brain that govern response to sexual stimuli.

The authors of the report state:

The most straightforward explanation of the present result is that low white matter volumes increase the risk of developing pedophilia,…Regardless of whether white matter deficiencies produce pedophilia or a susceptibility to it, the present results suggest the need to pursue what causes the white matter deficiencies.

So how long before criminal defence lawyers start to defend pedophiles on the basis that they are not criminally responsible for their actions due to brain damge?