Dyslexia Linked to Brain Communication Breakdown

 

According to a study published in Science, dyslexia may be caused by weaker connections between the auditory and speech areas of the brain. People with dyslexia often have trouble connecting spoken sound to written symbols. One theory says that the representations of sounds are disrupted in the brain. Another says that sound representations are intact in the brain, but that people with dyslexia can't connect or use those representations. Using brain scans, this study found that people with dyslexia had distinct brain signals for different sounds but had reduced connective tissues between auditory and speech areas.