Dyslexia is a common, language-based learning disability that makes it difficult to read, spell, and write. It is unrelated to a person's intelligence. Studies have also shown that patients with dyslexia can have a hard time hearing when there is a lot of background noise, but the reasons for this haven't been exactly clear.
Now, scientists at Northwestern University say that in dyslexia, the part of the brain that helps perceive speech in a noisy environment is unable to fine-tune or sharpen the incoming signals.
Click here to learn more about the study at Web MD
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