Featured Research

from universities, journals, and other organizations

Promise For Helping Adults With Dyslexia

Date:
November 1, 2004
Source:
Cell Press
Summary:
Adults suffering from dyslexia can benefit from tutoring in processing words, and their brains show changes that indicate neural modifications due to the training, researchers have found. Guinevere Eden and her colleagues said that their studies indicate that adult dyslexics can be helped by training.

Adults suffering from dyslexia can benefit from tutoring in processing words, and their brains show changes that indicate neural modifications due to the training, researchers have found. Guinevere Eden and her colleagues said that their studies indicate that adult dyslexics can be helped by training.

Related Articles


The findings are important, they wrote, because dyslexia accounts for 80% of all learning disabilities in the U.S. and U.K. and affects between 5% and 17% of the population.

"The majority of the dyslexic population are adults, many of whom suffer significant financial and emotional consequences," wrote the researchers. "Yet our knowledge about treatment outcomes for this population is relatively small, and the functional reorganization following treatment is unknown." The researchers pointed out that adaptive changes, or "plasticity," in the brains of adults, whose brains are mature, are likely to be different than in children with dyslexia, whose brains are rapidly changing with development.

To explore whether adult dyslexics can be helped, the researchers recruited for study 19 dyslexic adults and 19 adults who did not have dyslexia. They first compared brain function in the two groups using functional magnetic resonance imaging (fMRI). In this widely used technique, harmless magnetic fields and radio signals are used to scan blood flow in brain regions, which reflects brain activity.

The fMRI scans revealed that during a word processing task, the dyslexic subjects showed less activity in a region of the brain known to be involved in reading -- the left inferior parietal cortex.

In the task, both groups of subjects were asked to listen to words, then delete the initial phoneme -- for example, hear the word "cat" and repeat "at." As a control task, the subjects were asked only to repeat the words they heard, so the researchers could "subtract" any activity due to mental processing in general.

The researchers then gave half the dyslexic group intensive training in "phonological" tasks of recognizing and processing word sounds, while the other half received no such training.

When Eden and her colleagues retested both dyslexic groups, they found that the trained group showed significant improvement in visual and auditory word recognition and oral reading skills. Also, the researchers found that the trained dyslexic subjects showed increased activity in the left parietal cortex, as well as numerous regions in the right hemisphere of their brain.

"Together, these findings provide evidence that dyslexic adults are not, as may have been assumed, unable to profit from remedial practice," wrote the researchers. "In fact, the same strategies that are effective in teaching children phonological awareness skills are helpful in adults. Further, they are accompanied by neural changes known to underlie reading remediation of developmental dyslexia in childhood combined with those previously observed during the rehabilitation of adults with acquired dyslexia [due to brain damage].

"These findings provide important information for understanding adults with developmental dyslexia and for developing more specialized, effective interventions for this population," wrote the researchers.

###

Guinevere F. Eden, Karen Jones, Katherine Cappell, Lynn Gareau, Frank B. Wood, Thomas Zeffiro, Nicole Dietz, John Agnew, D. Lynn Flowers: "Neurophysiological Recovery and Compensation after Remediation in Adult Developmental Dyslexia"

Publishing in Neuron, Volume 44, Number 3, October 28, 2004, pages 411–422.


Story Source:

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


Cite This Page:

Cell Press. "Promise For Helping Adults With Dyslexia." ScienceDaily. ScienceDaily, 1 November 2004. <www.sciencedaily.com/releases/2004/10/041030184602.htm>.
Cell Press. (2004, November 1). Promise For Helping Adults With Dyslexia. ScienceDaily. Retrieved January 30, 2015 from www.sciencedaily.com/releases/2004/10/041030184602.htm
Cell Press. "Promise For Helping Adults With Dyslexia." ScienceDaily. www.sciencedaily.com/releases/2004/10/041030184602.htm (accessed January 30, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Friday, January 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Binge-Watching TV Linked To Loneliness

Binge-Watching TV Linked To Loneliness

Newsy (Jan. 29, 2015) Researchers at University of Texas at Austin found a link between binge-watching TV shows and feelings of loneliness and depression. Video provided by Newsy
Powered by NewsLook.com
Signs You Might Be The Passive Aggressive Friend

Signs You Might Be The Passive Aggressive Friend

BuzzFeed (Jan. 28, 2015) "No, I&apos;m not mad. Why, are you mad?" Video provided by BuzzFeed
Powered by NewsLook.com
City Divided: A Look at Model Schools in the TDSB

City Divided: A Look at Model Schools in the TDSB

The Toronto Star (Jan. 27, 2015) Model schools are rethinking how they engage with the community to help enhance the lives of the students and their parents. Video provided by The Toronto Star
Powered by NewsLook.com
Man Saves Pennies For 65 Years

Man Saves Pennies For 65 Years

Rooftop Comedy (Jan. 26, 2015) A man in Texas saved every penny he found for 65 years, and this week he finally cashed them in. Bank tellers at Prosperity Bank in Slaton, Texas were shocked when Ira Keys arrived at their bank with over 500 pounds of loose pennies stored in coffee cans. After more than an hour of sorting and counting, it turned out the 81 year-old was in possession of 81,600 pennies, or $816. And he&apos;s got more at home! Video provided by Rooftop Comedy
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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