ADHD brains may have 'faulty brakes'
February 14th, 2011
05:37 PM ET

ADHD brains may have 'faulty brakes'

Much news about attention-deficit hyperactivity disorder has focused on learning and attention, but here's another important part of this condition: Impairment in motor function.

Two new studies in the journal Neurology explore how brain functions relating to motor control may explain certain ADHD symptoms. They support previous research showing that kids with ADHD have motor control problems and offer new potential targets for treatment in the brain's inhibitory systems.

“If we can understand the systems that are involved, because there’s probably not just one, then we can identify groups of kids that have these symptoms, quantitatively and reliably, and use that information to understand who’s at the highest risk of a bad adult outcome,” said Dr. Donald Gilbert, study co-author and director of the Movement Disorder Clinic and Tourette's Syndrome Clinic at Cincinnati Children's Hospital Medical Center.

The first study showed that kids with ADHD - mainly boys, however - tend to have mirror movements, meaning that when one side of the body moves, the other does too, such that if a finger from one hand is tapping, a finger on the other hand might also move to some extent. The kids with ADHD tended to have more clumsy finger movements of this nature in the study. Such mirror movements are common in very young children, but typically disappear when the child reaches school age; participants in this study were between ages 8 and 13.

And a second study found that children with ADHD have a less efficient "braking system," or the brain circuitry involved in stopping oneself from acting impulsively (the editorial accompanying the studies is called "Faulty Brakes?"). This one used transcranial magnetic stimulation, a technique that applies a magnetic field to cause changes in electrical activity in the brain. This allowed the researchers to measure inhibition in the brain. They found that kids with ADHD were more likely to have inhibitory problems, explaining neurologically what these children tend to experience in school.

"Something catches their attention and they get distracted because they can’t inhibit that stimulus and ignore it," said Dr. Max Wiznitzer, pediatric neurologist at Rainbow Babies & Children's Hospital in Cleveland, Ohio, who was not involved in the study.

Both of these studies are relatively small - the first involved a total of 50 right-handed participants and the second had 98. But the findings are interesting, especially with regard to the transcranial magnetic stimulation experiment, and could be useful for developing new treatments, Wiznitzer said. This kind of research may also lead to subtyping of ADHD based on different underlying brain function in different groups.

But he cautioned that coordination issues aren't necessarily indicative of ADHD, but may also be indicative of other kinds of learning disabilities, Wiznitzer said.

"If you notice that your young child has clumsy motor movements or shaky hands, you should be aware that there may be some problems with learning, attention or impulse control later, and be more vigilant for those problems," Gilbert said.

soundoff (866 Responses)
  1. RV Technician Near Me

    I absolutely love your site.. Great colors & theme. Did you make this amazing site yourself? Please reply back as I’m wanting to create my very own blog and would like to learn where you got this from or just what the theme is named. Kudos!


    May 21, 2021 at 11:23 | Report abuse | Reply
  2. RV Mattresses California


    May 21, 2021 at 12:36 | Report abuse | Reply
  3. horse trailer paint jobs

    After looking over a handful of the blog posts on your site, I truly appreciate your way of blogging. I bookmarked it to my bookmark website list and will be checking back soon. Take a look at my web site too and tell me how you feel.


    May 21, 2021 at 13:05 | Report abuse | Reply
  4. boom truck repair near me

    Hi, I do believe this is a great site. I stumbledupon it 😉 I am going to come back yet again since I book-marked it. Money and freedom is the best way to change, may you be rich and continue to guide others.


    May 21, 2021 at 13:28 | Report abuse | Reply
  5. RV Frame Riverside


    May 21, 2021 at 13:32 | Report abuse | Reply
  6. RV Upholstery Los Angeles

    Nice post. I learn something totally new and challenging on websites I stumbleupon on a daily basis. It will always be helpful to read through content from other authors and use something from other sites.


    May 21, 2021 at 15:39 | Report abuse | Reply
  7. rv collision and restoration

    Good post. I learn something new and challenging on websites I stumbleupon every day. It will always be exciting to read content from other writers and practice a little something from their web sites.


    May 21, 2021 at 19:06 | Report abuse | Reply
  8. videos stores near me


    May 21, 2021 at 22:54 | Report abuse | Reply
  9. chloroquineorigin

    clonidine hcl https://chloroquineorigin.com/ clonidine hcl chloroquine online aralen buy online

    May 22, 2021 at 05:36 | Report abuse | Reply
  10. Content Marketing Service

    Good day! I could have sworn I’ve been to this web site before but after looking at a few of the posts I realized it’s new to me. Anyhow, I’m certainly delighted I stumbled upon it and I’ll be book-marking it and checking back regularly!


    May 22, 2021 at 08:06 | Report abuse | Reply
  11. motorhome supplies near me

    An interesting discussion is worth comment. There's no doubt that that you need to publish more about this subject matter, it may not be a taboo matter but typically folks don't talk about such topics. To the next! Many thanks!!


    May 22, 2021 at 08:34 | Report abuse | Reply
  12. RV Body Shop Riverside

    I’m impressed, I must say. Rarely do I encounter a blog that’s both educative and engaging, and let me tell you, you have hit the nail on the head. The problem is something that too few people are speaking intelligently about. I'm very happy that I stumbled across this during my hunt for something relating to this.


    May 22, 2021 at 09:14 | Report abuse | Reply
  13. Internet Marketing Service Near Me


    May 22, 2021 at 10:22 | Report abuse | Reply
  14. rv interior furniture


    May 22, 2021 at 14:24 | Report abuse | Reply
  15. Google Marketing Agencies


    May 22, 2021 at 15:21 | Report abuse | Reply
  16. cyclomune

    Cyclomune eye drops 0.05% cyclosporine medication

    May 23, 2021 at 05:24 | Report abuse | Reply
  17. tausAffessy

    cialis without a prescription buy generic cialis online with mastercard tadalafil cost in canada cialis without a prescription https://cttadalafil.com/

    May 23, 2021 at 20:49 | Report abuse | Reply
  18. Local Marketing Firm

    Hello, I do think your blog could possibly be having browser compatibility problems. When I take a look at your blog in Safari, it looks fine however, when opening in Internet Explorer, it's got some overlapping issues. I simply wanted to provide you with a quick heads up! Apart from that, fantastic site!


    May 24, 2021 at 11:36 | Report abuse | Reply
  19. House Washing Knoxville

    nice information for a new blogger. it is really helpful


    May 24, 2021 at 11:48 | Report abuse | Reply
  20. Soosteemocush

    tadalafil dosage https://cttadalafil.com/ – tadalafil blood pressure prescription tadalafil online generic cialis online fast shipping https://cttadalafil.com/

    May 24, 2021 at 12:19 | Report abuse | Reply
  21. RV AC Riverside

    Hi! I could have sworn I’ve been to this web site before but after browsing through a few of the posts I realized it’s new to me. Anyways, I’m definitely delighted I found it and I’ll be bookmarking it and checking back often!


    May 24, 2021 at 19:15 | Report abuse | Reply
  22. tausAffessy

    side effects for tadalafil https://cttadalafil.com/ tadalafil brands best price usa tadalafil buy tadalafil

    May 24, 2021 at 19:59 | Report abuse | Reply
  23. RV Windshield Riverside


    May 24, 2021 at 20:15 | Report abuse | Reply
  24. RV Center Los Angeles

    Having read this I believed it was really enlightening. I appreciate you spending some time and effort to put this information together. I once again find myself spending way too much time both reading and commenting. But so what, it was still worth it!


    May 24, 2021 at 21:21 | Report abuse | Reply
  25. remodel motorhome interior


    May 24, 2021 at 21:46 | Report abuse | Reply
  26. trailer maintenance near me


    May 24, 2021 at 22:19 | Report abuse | Reply
  27. Internet Marketing Firms


    May 24, 2021 at 23:00 | Report abuse | Reply
  28. Internet Marketing Agencies


    May 25, 2021 at 00:27 | Report abuse | Reply
  29. Social Media Marketing Specialist


    May 25, 2021 at 01:31 | Report abuse | Reply
  30. Forklift Rental Los Angeles

    This is a topic that's close to my heart... Many thanks! Exactly where are your contact details though?


    May 25, 2021 at 04:56 | Report abuse | Reply
  31. SEO Marketing Specialist

    This site certainly has all the information I wanted concerning this subject and didn’t know who to ask.


    May 25, 2021 at 05:30 | Report abuse | Reply
  32. Forklift Maintenance

    This is a topic that's near to my heart... Take care! Exactly where are your contact details though?


    May 25, 2021 at 06:19 | Report abuse | Reply
  33. Internet Marketing Company

    I like it whenever people get together and share ideas. Great website, keep it up!


    May 25, 2021 at 07:02 | Report abuse | Reply
  34. Tembepteriope

    https://tadalafilww.com/ buy tadalis canada generic tadalafil cialis cost tadalafil brands

    May 25, 2021 at 08:53 | Report abuse | Reply
  35. Google Marketing Consultant

    I enjoy looking through a post that can make people think. Also, thanks for allowing for me to comment!


    May 25, 2021 at 09:27 | Report abuse | Reply
  36. Google Marketing Agencies


    May 25, 2021 at 12:12 | Report abuse | Reply
  37. Local Marketing Agencies Near Me

    Good post. I learn something totally new and challenging on blogs I stumbleupon on a daily basis. It will always be useful to read through content from other authors and practice a little something from their sites.


    May 25, 2021 at 13:51 | Report abuse | Reply
  38. brimonidine

    combigan coupon generic combigan

    May 25, 2021 at 15:20 | Report abuse | Reply
  39. Content Marketing Boutique

    Greetings, There's no doubt that your web site could be having browser compatibility problems. Whenever I take a look at your blog in Safari, it looks fine however, if opening in I.E., it's got some overlapping issues. I merely wanted to give you a quick heads up! Other than that, excellent blog!


    May 25, 2021 at 16:37 | Report abuse | Reply
  40. Content Marketing Agency


    May 25, 2021 at 16:41 | Report abuse | Reply
  41. Content Marketing Companies

    You are so awesome! I don't believe I've read through a single thing like that before. So wonderful to find another person with a few original thoughts on this subject matter. Really.. many thanks for starting this up. This web site is one thing that's needed on the web, someone with a little originality!


    May 25, 2021 at 19:42 | Report abuse | Reply
  42. RV Beds California


    May 26, 2021 at 01:30 | Report abuse | Reply
  43. auto paint shop orange county

    Hi, I do believe this is a great site. I stumbledupon it 😉 I'm going to revisit yet again since I book marked it. Money and freedom is the greatest way to change, may you be rich and continue to guide others.


    May 26, 2021 at 06:22 | Report abuse | Reply
  44. shower parts near me


    May 26, 2021 at 06:28 | Report abuse | Reply
  45. RV Maintenance Los Angeles


    May 26, 2021 at 07:44 | Report abuse | Reply
  46. custom rv services


    May 26, 2021 at 09:31 | Report abuse | Reply
  47. Soosteemocush

    https://cttadalafil.com/ tadalafil dosage cialis without a prescription cheap cialis pills for sale where to buy generic cialis online safely

    May 26, 2021 at 09:33 | Report abuse | Reply
  48. RV Refrigerator Near Me


    May 26, 2021 at 09:43 | Report abuse | Reply
  49. avana

    avana india avanafil dosing

    May 26, 2021 at 11:07 | Report abuse | Reply
  50. custom shops near me

    There is certainly a great deal to find out about this subject. I love all the points you've made.


    May 26, 2021 at 19:44 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Leave a Reply to RV Repair Seal Beach


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.

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.

February 2011
  • An error has occurred, which probably means the feed is down. Try again later.