home
RSS
Do violent movies, games make teens aggressive?
October 18th, 2010
07:15 PM ET

Do violent movies, games make teens aggressive?

Watching violence portrayed in movies and other media may make teens more accepting of violence, researchers report in the journal Social Cognitive and Affective Neuroscience.

Previous research has shown a connection between violent media and aggression, as well as violence and desensitization. But this study looks at how teenagers' brains specifically respond to violent media, said Jordan Grafman, senior investigator at the National Institute of Neurological Disorders and Stroke.

Participants in the study were 22 boys ages 14 to 17. For that reason, researchers cannot determine whether the brain patterns they observed would also apply to girls. This is also a small sample size, meaning more research should be done to confirm the results.

Each participant watched clips of violent scenes from 60 different videos, which included movies such as "World's Wildest Street Fights Vol. 1 and 2," Grafman said, and rated the aggression of the scenes. Researchers could observe their brain function because each boy watched these scenes while in a functional magnetic resonance imaging (fMRI) scanner.

These brain images showed that more aggressive violence was associated with desensitization in the lateral orbitofrontal cortex of the brain, which scientists believe has to do with emotions and emotional responses to events. They measured this by looking at the deoxygenation of blood in this area of the brain and how it changes over time.

Participants also wore electrodes on the fingers of one hand to measure the electrical conductance of the skin, which indicates emotion. This was used to look at how desensitized the boys were to different videos, depending on the level of violence. This electrical conductance test showed that the boys appeared to be more desensitized by the mildly and moderately violent videos than the ones with a low-level of violence.

Boys who had the greatest level of exposure to violent media routinely showed the greatest desensitization in this study.

If you already have a predisposition toward violence, based on your home  life and genetics, and are exposing yourself to violent media, "the risk would go up for being, first, accepting of violent or aggressive behavior around you, which be often as devastating as actually committing the act, or potentially being more easily provoked," Grafman said.

That assessment does not apply to these individual children in the study, but it's the study's broader message, he said.

"Sometimes people just call these 'games,' but imagine if you're doing this three hours a day, four hours a day; it's not just 'games,' it's your environment, he said."

Although the study did not directly address the issue of violence in video games, previous research found that "emotional desensitization had been associated with children’s exposure to violent video games and adults' self-reported reduced sympathy with victims in violent movie scenes," Grafman's study said.

But there may be a flip side to video games with some degree of violence. A September study in the journal Current Biology found that participants ages 18 to 25 could make faster decisions that were no less accurate after playing action games such as "Call of Duty 2" and "Unreal Tournament," which are first-person shooter games.

The lesson from that is not to carve out as much time for video games as you can, said Alexandre Pouget of the University of Rochester,  co-author of the Current Biology paper. Rather, exploring how video games help with quick thinking can translate into educational tools and games that more effectively teach useful skills, he said.

For children over 6 years of age, pediatricians recommend no more than two hours of screen time per day, said Dr. Jennifer Shu, CNNHealth living well expert. But some studies have shown that, in practice, many kids spend about 7 hours a day in front of some kind of screen, including smart phones.

Parents should put limits on-screen time, she said. It's a cause for concern if a child becomes hyperactive, has attention problems, doesn't sleep well or get enough exercise because of things like video games and television.


soundoff (1,231 Responses)
  1. best rv service near me

    Spot on with this write-up, I honestly believe this web site needs a great deal more attention. I’ll probably be back again to read through more, thanks for the information!

    https://www.etracker.de/lnkcnt.php?et=qPKGYV&url=https://ocrvcenter.com/motorhome-couch-repair-near-me

    May 20, 2021 at 23:06 | Report abuse | Reply
  2. store xnxx

    I blog quite often and I genuinely appreciate your information. Your article has really peaked my interest. I am going to bookmark your blog and keep checking for new details about once a week. I opted in for your RSS feed too.

    http://pram.elmercurio.com/Logout.aspx?ApplicationName=EMOL&l=yes&SSOTargetUrl=https://ocrvcenter.com/rv-repair-shop-south-gate-california

    May 20, 2021 at 23:58 | Report abuse | Reply
  3. Mercedes Sprinter Service Center

    https://www.morhipo.com/shared/partnercookie?k=gort&url=http://sprintervanrepairshop.com/box-truck-frame-repair-shop-near-me

    May 21, 2021 at 00:07 | Report abuse | Reply
  4. rv couches

    http://p-bandai.jp/access/ocrv.fun/rv-couch-repair-near-me

    May 21, 2021 at 02:32 | Report abuse | Reply
  5. beeg me

    I really like looking through a post that can make men and women think. Also, thanks for allowing for me to comment!

    http://cross-a.net/go_out.php?url=https://ocrvcenter.com/rv-repair-shop-la-mesa-california/

    May 21, 2021 at 09:03 | Report abuse | Reply
  6. RV Couches Orange County

    /

    May 21, 2021 at 10:50 | Report abuse | Reply
  7. RV Upholstery Near Me

    Nice post. I learn something new and challenging on websites I stumbleupon everyday. It will always be exciting to read through articles from other authors and use something from their websites.

    http://www.aurki.com/jarioa/redirect?id_feed=510&url=https://www.issenbergdesign.com/uncategorized/after-tightening-the-bolts-at-the-bottom/

    May 21, 2021 at 12:47 | Report abuse | Reply
  8. LbsoZisse

    cialis 10mg tablets http://ucialisdas.com/ – cialis 200mg buy generic cialis online

    May 21, 2021 at 15:43 | Report abuse | Reply
  9. RV Roof Orange County

    http://zhhsw.com/home/link.php?url=http://southerngirlflare.com/2020/02/managing-psoriatic-arthritis-symptoms/

    May 21, 2021 at 20:50 | Report abuse | Reply
  10. cyclomune

    buy cyclosporine usa cyclosporine emulsion drops

    May 21, 2021 at 21:07 | Report abuse | Reply
  11. Local Marketing Agencies

    https://www.adaurum.ru/view/www/delivery/ck.php?ct=1&oaparams=2__bannerid=6266__zoneid=10__cb=27a60d5e04__oadest=https://affordableranking.com

    May 21, 2021 at 22:45 | Report abuse | Reply
  12. xvideos t

    http://www.laosubenben.com/home/link.php?url=https://www.ocrvcenter.com/tour-bus-collision-repair-shop-near-me/

    May 21, 2021 at 22:45 | Report abuse | Reply
  13. AnooEncox

    viagra 100 n1 https://llviagra.com/ cheapest viagra from canada

    May 22, 2021 at 01:13 | Report abuse | Reply
  14. RV Plumbing Orange County

    Very good write-up. I definitely appreciate this website. Keep writing!

    http://localbusiness.theledger.com/__media__/js/netsoltrademark.php?d=ynwa.news/?p=11453

    May 22, 2021 at 02:51 | Report abuse | Reply
  15. rv mattresses near me

    http://ram.ne.jp/link.cgi?https://ocrvcenter.com/rv-repair-shop-montclair-california/

    May 22, 2021 at 03:24 | Report abuse | Reply
  16. how to repair rv fiberglass exterior damage

    You are so cool! I don't think I've read through a single thing like this before. So nice to discover somebody with genuine thoughts on this issue. Really.. thanks for starting this up. This website is one thing that is required on the internet, someone with a little originality!

    http://forums.womenshealthmatters.ca/gynegals/index.php?app=analytics&module=analytics&controller=link&topic=115902&url=http://ocrvcenter.com/rv-repair-shop-loma-linda-california

    May 22, 2021 at 04:35 | Report abuse | Reply
  17. couch upholstery repair near me

    Right here is the perfect web site for anybody who wishes to understand this topic. You know so much its almost hard to argue with you (not that I actually would want to…HaHa). You definitely put a fresh spin on a subject which has been written about for a long time. Great stuff, just excellent!

    http://track.affclkr.com/track/clicks/3171/c627c2b89e0522dbfe9cbd2e8d2b8914736245cb75e9f0ab416db1046005?t=http://ocrvcenter.com/rv-repair-shop-bell-gardens-california

    May 22, 2021 at 04:53 | Report abuse | Reply
  18. AnooEncox

    mitos y verdades viagra https://llviagra.com/ viagra y sandia

    May 22, 2021 at 10:48 | Report abuse | Reply
  19. Google Marketing Consultant

    https://2mbx.ru/bitrix/rk.php?id=22&event1=banner&event2=click&event3=1+/+%5B22%5D+%5BLEFT_BOTTOM%5D+&goto=https://www.affordableranking.com/

    May 22, 2021 at 12:08 | Report abuse | Reply
  20. pgslot

    https://jokerxoth.com/pgslot

    May 22, 2021 at 23:44 | Report abuse | Reply
  21. repair rv blinds

    http://ladygamer.jp/ws/rank.cgi?mode=link&id=299&url=https://ocrvcenter.com/rv-repair-shop-la-quinta-california

    May 23, 2021 at 06:15 | Report abuse | Reply
  22. rv wraps near me

    http://love.okchatroom.com/lovelove/link.php?url=ocrvcenter.com/industrial-vehicle-collision-repair-shop-near-me

    May 23, 2021 at 10:51 | Report abuse | Reply
  23. cyclomune

    cyclosporine ophthalmic buy cyclosporine uk

    May 23, 2021 at 15:03 | Report abuse | Reply
  24. SEO Marketing Company Near Me

    https://seniorcollection.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 23, 2021 at 15:15 | Report abuse | Reply
  25. สล็อต

    The stakes are too high, with both pros and cons. You then have to be careful when you add that bet. Which I must say that in increasing the bets there are good and bad Because if you then add the wrong time. You might as well waste your money for free. But if you then increase the bet at the right time You will then be able to increase your chances of winning. That has more rewards.

    https://jokerxoth.com/

    May 23, 2021 at 15:52 | Report abuse | Reply
  26. RebfZisse

    buy generic cialis online http://rcialisgl.com/ buy cialis using paypal

    May 23, 2021 at 18:26 | Report abuse | Reply
  27. JebgEncox

    best online pharmacy india https://pharmacylo.com/ best online pharmacy india

    May 23, 2021 at 18:50 | Report abuse | Reply
  28. Soosteemocush

    tadalafil daily online https://tadacipetadalafil.com/ tadalafil without a doctor prescription tadalafil generic where to buy best price usa tadalafil

    May 23, 2021 at 19:25 | Report abuse | Reply
  29. GtnbCrulk

    viagra vs sildenafil http://jokviagra.com/ viagra soft

    May 23, 2021 at 19:35 | Report abuse | Reply
  30. brimonidine

    combigan 5 ml brimonidine dosage

    May 23, 2021 at 20:48 | Report abuse | Reply
  31. LebnEncox

    canadian pharmacies http://xlnpharmacy.com/ Floxin

    May 23, 2021 at 20:56 | Report abuse | Reply
  32. Tembepteriope

    tadalafil liquid https://tadacipetadalafil.com/ – tadalafil dosage lowest price cialis tadalafil cost in canada https://tadalafilol.com/

    May 23, 2021 at 22:18 | Report abuse | Reply
  33. LbsoZisse

    buying cialis online canadian order https://ucialisdas.com/ cialis pro

    May 24, 2021 at 01:27 | Report abuse | Reply
  34. tausAffessy

    https://apcalisetadalafil.com/ buy tadalis https://tadalafilol.com/ – where to order tadalafil tablets where to get tadalafil

    May 24, 2021 at 01:59 | Report abuse | Reply
  35. FmrfEncox

    cialis online doctor http://cialisee.com/ sfter market cialis

    May 24, 2021 at 02:18 | Report abuse | Reply
  36. BbshMile

    buy viagra in mexico https://loxviagra.com/ viagra dosing

    May 24, 2021 at 05:17 | Report abuse | Reply
  37. Internet Marketing Businesses

    This web site really has all of the information I needed about this subject and didn’t know who to ask.

    https://edesk.jp/atp/Redirect.do?url=http://www.affordableranking.com/

    May 24, 2021 at 06:31 | Report abuse | Reply
  38. rv repair close to me

    Oh my goodness! Awesome article dude! Thank you, However I am experiencing problems with your RSS. I don’t know why I cannot subscribe to it. Is there anybody else getting the same RSS issues? Anyone who knows the answer will you kindly respond? Thanks!!

    http://dir.tetsumania.net/search/rank.cgi?mode=link&id=3267&url=ocrvcenter.com/rv-repair-shop-westminster-california/

    May 24, 2021 at 07:06 | Report abuse | Reply
  39. RV Furniture Los Angeles

    I couldn’t resist commenting. Exceptionally well written!

    https://www.chope.co/bali-restaurants/passport?a=logout&b_u=http://ocrv.life/rv-repair-shop-calabasas-california

    May 24, 2021 at 09:02 | Report abuse | Reply
  40. RebfZisse

    top web source for cialis https://rcialisgl.com/ paypal cialis no prescription

    May 24, 2021 at 11:12 | Report abuse | Reply
  41. GtnbCrulk

    does viagra work https://jokviagra.com/ viagra for sale

    May 24, 2021 at 12:16 | Report abuse | Reply
  42. combigan

    buy generic combigan combigan generic

    May 24, 2021 at 14:28 | Report abuse | Reply
  43. LebnEncox

    the pharmacy http://xlnpharmacy.com/ Avapro

    May 24, 2021 at 16:57 | Report abuse | Reply
  44. RV Dent Repair Los Angeles

    Your style is really unique compared to other people I've read stuff from. I appreciate you for posting when you've got the opportunity, Guess I will just bookmark this blog.

    /

    May 24, 2021 at 19:43 | Report abuse | Reply
  45. RV Maintenance California

    http://kyoto-osaka.com/search/rank.cgi?mode=link&id=9143&url=http://publiensayos.com/quemaduras/

    May 24, 2021 at 21:31 | Report abuse | Reply
  46. Forklift Service

    http://egov2.miamigov.com/Office_of_Auditor_General/admin/Portal/LinkClick.aspx?tabid=1&table=Announcements&field=ItemID&id=98&link=http://forkliftswildwestlifttrucks.com/stand-up-forklift-repair-orange-county-california

    May 25, 2021 at 00:00 | Report abuse | Reply
  47. New Forklift Rental California

    https://www.readwhere.com/user/logout?ru=https://forkliftswildwestlifttrucks.com/orange-county-forklifts

    May 25, 2021 at 00:25 | Report abuse | Reply
  48. Forklift Maintenance Los Angeles

    Greetings! Very useful advice in this particular post! It's the little changes which will make the largest changes. Thanks for sharing!

    http://www.aaronsw.com/2002/display.cgi?t=<a+href=http://www.forkliftswildwestlifttrucks.com/cypress-forklifts

    May 25, 2021 at 00:48 | Report abuse | Reply
  49. Local Marketing Service

    This website was... how do I say it? Relevant!! Finally I have found something which helped me. Thanks!

    https://www.safelinkchecker.com/site/https://affordableranking.com

    May 25, 2021 at 01:07 | Report abuse | Reply
  50. tausAffessy

    tadalafil cost walmart tadalafil goodrx generic cialis tadalafil https://tadacipetadalafil.com/

    May 25, 2021 at 01:10 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Post a comment


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.