Navigation Links
Making it easier to learn to read
Date:8/7/2012

This press release is available in German.

To participate successfully in life, it is important to be able to read and write. Nevertheless, many children and adults have difficulties in acquiring these skills and the reason is not always obvious. They suffer from dyslexia which can have a variety of symptoms. Thanks to research carried out by Begoa Daz and her colleagues at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, a major step forward has been made in understanding the cause of dyslexia. The scientists have discovered an important neural mechanism underlying dyslexia and shown that many difficulties associated with dyslexia can potentially be traced back to a malfunction of the medial geniculate body in the thalamus. The results provide an important basis for developing potential treatments.

People who suffer from dyslexia have difficulties with identifying speech sounds in spoken language. For example, while most children are able to recognise whether two words rhyme even before they go to school, dyslexic children often cannot do this until late primary school age. Those affected suffer from dyslexia their whole lives. However, there are also always cases where people can compensate for their dyslexia. "This suggests that dyslexia can be treated. We are therefore trying to find the neural causes of this learning disability in order to create a basis for improved treatment options," says Daz. Between five and ten percent of the world's children suffer from dyslexia, yet very little is know about its causes.

Even though those affected do not lack intelligence or schooling, they have difficulties in reading, understanding and explaining individual words or entire texts. The researchers showed that dyslexic adults have a malfunction in a structure that transfers auditory information from the ear to the cortex is a major cause of the impairment: the medial geniculate body in the auditory thalamus does not process speech sounds correctly. "This malfunction at a low level of language processing could percolate through the entire system. This explains why the symptoms of dyslexia are so varied," says Daz.

Under the direction of Katharina von Kriegstein, the researchers conducted two experiments in which several volunteers had to perform various speech comprehension tasks. When affected individuals performed tasks that required the recognition of speech sounds, as compared to recognize the voices that pronounced the same speech, magnetic resonance tomography (MRT) recordings showed abnormal responses in the area around the medial geniculate body. In contrast, no differences were apparent between controls and dyslexic participants if the tasks involved only listening to the speech sounds without having to perform a specific task. "The problem, therefore, has nothing to do with sensory processing itself, but with the processing involved in speech recognition," says Daz. No differences could be ascertained between the two test groups in other areas of the auditory signalling path.

The findings of the Leipzig scientists combine various theoretical approaches, which deal with the cause of dyslexia and, for the first time, bring together several of these theories to form an overall picture. "Recognising the cause of a problem is always the first step on the way to a successful treatment," says Daz. The researchers' next project is now to study whether current treatment programmes can influence the medial geniculate body in order to make learning to read easier for everyone in the long term.


'/>"/>
Contact: Dr. Begoa Daz
diaz@cbs.mpg.de
49-341-994-02480
Max-Planck-Gesellschaft
Source:Eurekalert  

Related medicine news :

1. Neuroeconomics to study decision-making in anxious individuals
2. First Is Viewed as Best When Making Quick Decisions
3. New Electronic Cigarette Free Trial Kit Adds More Years to Smokers Life by Making it Easy to Quit Smoking
4. DotComSecrets’ Russell Brunson Is Revealing Online Money Making Secrets in Free Webinars for Students
5. Making bad worse for expectant mothers
6. After 25 years, World No Tobacco Day is making an impact
7. OHSU Oregon National Primate Research Center develops new, safer method for making vaccines
8. Brain Changes May Hamper Decision-Making in Old Age
9. ACP Immunization Advisor app makes it easier for doctors to identify vaccines for patients
10. Intuitive Number Sense Makes Daily Life Easier
11. A learning health system moves from idea to action
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Making it easier to learn to read
(Date:10/13/2017)... ... , ... “The Journey: From the Mountains to the Mission Field”: the story ... the Philippines. “The Journey: From the Mountains to the Mission Field” is the creation ... has taught all ages and currently teaches a class of ladies at her church, ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare ... program management, will showcase a range of technology and learning solutions at the ... Convention and Expo to be held October 14–18, 2017 at the Mandalay Bay ...
(Date:10/12/2017)... ... ... Planet Fitness, one of the largest and fastest growing franchisors and operators ... location in Covington, LA at 401 N. U.S. Highway 190, in January of 2018. ... in the Holiday Square shopping center. Its location allows it to serve both Covington ...
(Date:10/12/2017)... ... ... IsoComforter, Inc. ( https://isocomforter.com ), one of the Nation’s premier ... of the shoulder pad. The shoulder pad provides optimal support and full contact ... using cold therapy. By utilizing ice and water that is circulated from an insulated ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally recognized health ... expanded their existing home health joint venture through an agreement, effective October 1, ... joint venture home health company with Asante, delivering clinically integrated care, for the ...
Breaking Medicine News(10 mins):
(Date:9/22/2017)... Sept. 22, 2017 AVACEN Medical (AVACEN) announced ... now successfully helping those with the widespread pain associated ... diagnosed Amanda in Essex, England ... my hair, experiencing no sleep at all, tremendous pain, ... I cannot recommend [the AVACEN 100] enough, how this ...
(Date:9/18/2017)... , Sept. 18, 2017 EpiVax, ... of bioinformatics and immune engineering, today announced ... influenza A (H7N9) vaccine. ... to seasonal influenza and presents a challenge ... prior exposure to be effective. Using state-of-the-art ...
(Date:9/12/2017)... , Sept. 12, 2017  ValGenesis Inc., ... Solutions (VLMS), is pleased to announce the appointment ... member of its Board of Directors and Chairman ... VLMS enables life science companies to manage their ... use of paper in this process. Furthermore, ValGenesis ...
Breaking Medicine Technology: