Even the most cursory of online searches will yield an abundance of scientific studies showing the harmful effects violent media can have on young, impressionable minds.

TV & Movie Violence: Why watching it is harmful to children
http://www.ocd.pitt.edu/Files/PDF/Parenting/TvAndMovieViolence.pdf

Kids and Violent Movies: A Scary Trend
http://www.webmd.com/parenting/news/20080805/kids-and-violent-movies-a-scary-trend

Does Rap or Rock Music Provoke Violent Behavior?
http://library.wcsu.edu/dspace/bitstream/0/35/1/tropeano.pdf

Study: Rap Music Linked to Alcohol, Violence
http://www.npr.org/templates/story/story.php?storyId=5390075

The Impact of Rap and Hip-Hop Music On American Youth
http://www.teenink.com/nonfiction/all/ar...American-Youth/

Can Listening to Music be Harmful to Us?
http://www.simonheather.co.uk/pages/articles/listen.pdf


Violent Video Games - Psychologists Help Protect Children from Harmful Effects
http://www.apa.org/research/action/games.aspx

The effects of violent video games. Do they affect our behavior?
http://ithp.org/articles/violentvideogames.html

How Playing Violent Video Games May Change the Brain
http://healthland.time.com/2011/12/02/how-playing-violent-video-games-may-change-the-brain/

Are violent video games harmful?
http://www.easternct.edu/~lugow/courses/videogames/violence.pdf

DOES VIDEO GAME VIOLENCE HARM TEENS? NEW STUDY WEIGHS THE EVIDENCE
http://researchnews.osu.edu/archive/vidviollaw.htm