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.

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 July 31, 2014 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 July 31, 2014).

Share This




More Mind & Brain News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dieting At A Young Age Might Lead To Harmful Health Habits

Dieting At A Young Age Might Lead To Harmful Health Habits

Newsy (July 30, 2014) Researchers say women who diet at a young age are at greater risk of developing harmful health habits, including eating disorders and alcohol abuse. Video provided by Newsy
Powered by NewsLook.com
It's Not Just Facebook: OKCupid Experiments With Users Too

It's Not Just Facebook: OKCupid Experiments With Users Too

Newsy (July 29, 2014) If you've been looking for love online, there's a chance somebody has been looking at how you're looking. Video provided by Newsy
Powered by NewsLook.com
How Your Face Can Leave A Good Or Bad First Impression

How Your Face Can Leave A Good Or Bad First Impression

Newsy (July 29, 2014) Researchers have found certain facial features can make us seem more attractive or trustworthy. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) A new study shows sleep deprivation can make it harder for people to remember specific details of an event. Video provided by Newsy
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