Genetic Research Over 40 Years Suggests Dyslexia Linked to Brain Network Vulnerabilities Affecting 20 Percent Globally

A review of 40 years of genetic research suggests that dyslexia, a common learning disorder affecting reading ability, may not be caused by a single faulty gene but rather by vulnerabilities in broader brain networks. A psychology professor at the University of Houston presented this perspective, challenging long-held beliefs about the origins of dyslexia. The condition impacts up to 20% of the global population—approximately 780 million people—who experience persistent difficulties with reading throughout their lives.

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UH Study Unveils New Targets for Dyslexia Solutions

A University of Houston psychology professor is challenging the notion that dyslexia, or specific reading disorder, stems from a single faulty gene in the brain, suggesting instead that it is caused by an overall brain network vulnerability. The insight reshapes understanding of one of the world’s most common learning disorders, which affects up to 20% of the world’s population—nearly 780 million people who face lifelong challenges with reading.

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Hold your tongue: study shows numbing the mouth may speed up silent reading

Parents often tell their children to sound out the words as they are learning to read. It makes sense: Since they already know how to speak, the sound of a word might serve as a clue to its meaning.

It turns out there’s a surprising and deep connection between what’s going on in your mouth and how your brain handles reading, and a University of Alberta research team hopes to use it to help people with dyslexia and other reading difficulties. 

In a new study with the alliterative title Perturbing the pathway: The impact of lollipops and lidocaine on supramarginal gyrus activity during silent reading tasks, the team found that numbing the mouth can help people read faster. 

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Why Sound, Laughter, and Play Are Essential for Learning

Creative Sound Play recognizes what science and caregivers have long observed: humans communicate, bond, and learn through sound before words, symbols, or formal music. From giggles and coos to call-and-response vocal play, sound is a child’s first language—and one of the most accessible, inclusive educational tools available to educators today.

Dr. Mireault’s research highlights laughter as a mechanism for social bonding and emotional regulation, particularly in moments of surprise, play, and shared attention. Creative Sound Play extends this understanding into classrooms by intentionally using vocal sounds, clapping, stomping, silence, rhythm, and playful listening to strengthen relationships, support self-regulation, and transform everyday moments—especially transition times—into meaningful learning experiences.

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America’s Spelling Crisis: Why Spellcheck Can’t Save Your Child

Key Takeaways:

  • Learning to spell builds the linguistic foundation children need for reading, writing, and lifelong communication
  • Technology tools like spellcheck and ChatGPT mask learning difficulties and can delay diagnosis of dyslexia
  • Experts recommend 20 minutes of daily spelling instruction using science-based curricula, not just memorization

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