addictive behavior and brains

Behavioural science has found something intresting (what I have known).
Results:  There were found a significant negative association between reported pornography hours per week and gray matter volume in the right caudate (P < .001, corrected for multiple comparisons) as well as with functional activity during a sexual cue–reactivity paradigm in the left putamen (P < .001).
According to Simone Kühn, researcher Germany's Max Planck Institute for Human Development, functional connectivity of the right caudate to the left dorsolateral prefrontal cortex was negatively associated with hours of pornography consumption.