Structural Differences and more...
Found in actual dissections, as well as MRI's, dyslexics use different neural pathways that non-dyslexic readers. In both the cerebral cortex, and the thalamus, scientist have found structural differences in brains of people born with dyslexia.
"The cerebral cortex is the six-layered outer part of the brain involved in high-level processing, including sensory and motor analyses, working memory, attention, and language. The thalamus, a “way-station” located at the center of the brain, is the major stop for information transmitted from our sensory organs (e.g., eyes and ears) to the higher-level processing cerebral cortex." www.greatschools.org/gk/articles/structural-brain-differences-in-kids-with-dyslexia/) |
And there's more... |
Wonderful site and article:
www.dyslexia.com/research/articles/alternative-brain-pathways/ “The rCBF–reading test correlations identified a region in/near the left angular gyrus as significantly related to level of reading skill within both groups. These correlations were uniformly positive for the control group and uniformly negative for the dyslexic group, indicating diametrically opposed relationships in the two groups….within the control group higher rCBF was associated with better reading skill and that within the dyslexic group higher rCBF was associated with worse reading skill, or more severe dyslexia.” |
You may ask...just where IS the "reading section" of the brain...well... there ISN'T one! Reading, as I have stated here many times before, is NOT A NATURAL activity. Our brains have to connect three or more regions of the brain to even be able to read and comprehend the words. This is where the different "wiring" or "pathways" come into play when we talk about dyslexic brains vs nondyslexic reader's brains. The dyslexic brain takes a longer route or pathway and also underutilizes and overutilizes the three different regions dedicated to the act of reading. Through systematic, explicit language intervention, brains can be reprogrammed to use those areas and be more efficient readers. That's where I come in : ) I never thought reading was as complicated as rocket science, or that a teacher needed to conduct brain surgery to teach some young minds how to read...but it appears I was wrong, and that it is a mixture of both skills. (My daughter thinks this part of the website is funny, so I had to include it.)
https://theliteracybrain.com/tag/typical-readers-vs-dyslexic-readers/ |
The brain is like any other part of the body, always changing and growing...did you know that your brain actually changes while you are reading, and stays changed for days afterwards! How Reading Changes Your Brain's Structure... Yes, Really!! The drawing here with magic marker is pretty crude but it shows you how the typical brain has movement through three different parts. The dyslexic brain is using the frontal area heavily, and the left and right side a small amount, but not using the back of the brain at all. With consistent, and repeated structured language instruction, the brain can make NEW CONNECTIONS in the appropriate sections and understand better how to unlock the language code that most people do with very little instruction.
Here are some before and after images. |