This is mostly true, but I don&#x27;t think the evidence is there for videogames. What you might find evidence for w.r.t videogames is that they&#x27;ll change your behavioral responses under stress, for example having played many shooter games, and given a real gun, then put in a stressful situation, you&#x27;re more likely to pull the trigger on another human than otherwise.<p>For mass shooting, absolutely true: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PezlFNTGWv4" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PezlFNTGWv4</a> (Skip to 1:30 if you want an argument from authority.)<p>I suspect it&#x27;s true for suicides as well. People underestimate copycat &#x2F; monkey-see-monkey-do influences.