Here’s who reviewed the article. What specific issues do you have with it and her credentials? On what basis do you believe you are more qualified to make judgements on this topic than Dr. Casarella? What are YOUR credentials?

Are you claiming to have conducted an appropriate literature review or did you just shop around for a single journal article that sorta kinda supports what you think?

While we’re at it, perhaps you could explain how the study’s results support your beliefs?

Results We 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). Functional connectivity of the right caudate to the left dorsolateral prefrontal cortex was negatively associated with hours of pornography consumption.

How does the exact volume gray matter (a decrease, actually) relate? What was the size of the effect?