Featured Research

from universities, journals, and other organizations

Drug To Treat ADHD Has Similar Effect On Children With Reading Disorders

Date:
December 22, 2004
Source:
Yale University
Summary:
The drug methylphenidate (brand name Ritalin) increased activity in brains of children with attention-deficit/hyperactivity disorder (ADHD) as well as those with a reading disorder, researchers at Yale report in the American Journal of Psychiatry.

New Haven, Conn. -- The drug methylphenidate (brand name Ritalin) increased activity in brains of children with attention-deficit/hyperactivity disorder (ADHD) as well as those with a reading disorder, researchers at Yale report in the American Journal of Psychiatry.

"During a test of divided attention, Ritalin increased activation in the basal ganglia, a structure of the brain involved in cognition and behavior," said first author Keith Shafritz, former graduate student in the interdepartmental Neuroscience Program at Yale and now a research associate at Duke University Medical Center. "We saw this activation in children with ADHD and those with reading disorder."

The study used functional magnetic resonance imaging (fMRI) to analyze the effect of the drug on brain function. Researchers found that adolescents with ADHD or reading disorder who were on placebo (not medicated) had less activation of the basal ganglia than a group of healthy participants. When the same participants received Ritalin, the drug normalized the activation, which relates to the amount of blood flow to a specific brain region in response to a cognitive task.

ADHD is characterized by inattention, but previous neuroimaging studies have examined the brain dysfunction associated with impulsivity. "This is one of few studies that used a test for attention rather than a cognitive test for impulsivity," said Shafritz. "It is also the first study, using fMRI to find that the attention circuitry in the brain is directly affected by ADHD."

The 27 study participants, ages 14 to 18 with either ADHD or reading disorder, were randomly assigned to receive Ritalin first or placebo first and didn't know to which group they were assigned. While in the MRI, the participants were given auditory or visual performance tasks to decide whether they saw or heard a real English word or a nonsense word. Their results were compared to a group of 14 healthy adolescents who were not given Ritalin.

Although Ritalin did not affect performance, it altered the areas of the brain that were active during the simple performance of tasks. These results suggest that both ADHD and reading disorder are associated with dysfunction in the brain's attentional circuitry and that methylphenidate normalizes activation within this neural system.

Other authors on the study included Karen E. Marchione, John C. Gore, Sally E. Shaywitz, and Bennett A. Shaywitz.

###

Citation: American Journal of Psychiatry, Vol. 161 November 2004.


Story Source:

The above story is based on materials provided by Yale University. Note: Materials may be edited for content and length.


Cite This Page:

Yale University. "Drug To Treat ADHD Has Similar Effect On Children With Reading Disorders." ScienceDaily. ScienceDaily, 22 December 2004. <www.sciencedaily.com/releases/2004/12/041219134458.htm>.
Yale University. (2004, December 22). Drug To Treat ADHD Has Similar Effect On Children With Reading Disorders. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2004/12/041219134458.htm
Yale University. "Drug To Treat ADHD Has Similar Effect On Children With Reading Disorders." ScienceDaily. www.sciencedaily.com/releases/2004/12/041219134458.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Vaccine Might Be Coming, But Where's It Been?

Ebola Vaccine Might Be Coming, But Where's It Been?

Newsy (Aug. 1, 2014) Health officials are working to fast-track a vaccine — the West-African Ebola outbreak has killed more than 700. But why didn't we already have one? Video provided by Newsy
Powered by NewsLook.com
Study Links Certain Birth Control Pills To Breast Cancer

Study Links Certain Birth Control Pills To Breast Cancer

Newsy (Aug. 1, 2014) Previous studies have made the link between birth control and breast cancer, but the latest makes the link to high-estrogen oral contraceptives. Video provided by Newsy
Powered by NewsLook.com
House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Uganda on Alert for Ebola but No Confirmed Cases

Uganda on Alert for Ebola but No Confirmed Cases

AFP (July 31, 2014) Uganda's health minister said on Thursday that there are no confirmed cases of Ebola in the country, but that it remained on alert for cases of the deadly virus. Uganda has suffered Ebola outbreaks in the past, most recently in 2012. Duration: 00:59 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins