Types of Dyslexia
"Dyslexia" isn't just the one umbrella condition people often generalize it to be. There are multiple types of developmental dyslexia, the kind that is inherited and present from birth. It is a lifelong condition related to how the brain naturally develops and processes language, and it is present in elementary school students and above. It can show up in different ways:
Phonological
The most common type. People struggle to break words down into their individual sounds (phonemes), making it hard to sound out (decode) unfamiliar words or spell correctly.
Surface
Also known as visual or dyseidetic dyslexia. People can sound out words phonetically but struggle to recognize whole words by sight, so irregular words like "yacht" or "said" are very difficult.
Rapid-Naming (RAN)
Challenges with the speed at which the brain automatically retrieves familiar symbols, words, or numbers from long-term memory. People process language slowly, which affects fluency.
Double-Deficit
A more severe form that combines the challenges of both phonological and rapid-naming dyslexia, causing significant delays in decoding and reading speed.
Visual Processing
Not an issue with eyesight itself, but how the brain interprets visual information. It often involves letter reversals (like confusing b and d), letters appearing to move or blur, and difficulty with visual tracking.
Attentional
Can lead to difficulty focusing on text while reading and writing. People may lose their train of thought or forget what they just read because letters or words on the page distract or interfere with each other.