Dyslexia

📖 Overview

Dyslexia is a specific learning difference that primarily affects the accuracy and fluency of reading and spelling. It is neurological in origin, not caused by low intelligence, poor teaching, or lack of effort.

WHAT DYSLEXIA IS AND IS NOT
Dyslexia is not about seeing letters backwards. That is a myth that persists despite no evidence to support it. Dyslexia is a phonological processing difference — the brain processes the relationship between letters and sounds differently, making decoding written words slow and effortful.

Reading comprehension is often strong when text is read aloud. This is the key indicator that the difficulty is with decoding, not understanding.

TYPES AND SUBTYPES OF DYSLEXIA

Phonological Dyslexia
The most common form. Difficulty connecting letters and letter combinations to their sounds (phonemes). Blending sounds to read words and breaking words into sounds for spelling are both affected. The person may read words as whole visual units — recognising familiar words but struggling completely with unfamiliar ones.

Surface Dyslexia
Difficulty recognising words as whole visual patterns. The person relies on phonics and sounds out words laboriously, struggling with irregular words that do not follow phonetic rules (such as "yacht", "colonel", or "Wednesday"). Reading is slow and effortful even when individual letter-sound connections are secure.

Double Deficit Dyslexia
Difficulty with both phonological processing and rapid automatic naming — the speed at which the brain can retrieve the names of letters, colours, and numbers. This is generally considered the most significant form in terms of reading difficulty.

Orthographic Processing Difficulties
Difficulty with the visual representation of words — remembering how words look, storing and retrieving word spellings, and recognising when a word looks wrong. This affects both reading and spelling.

DYSLEXIA AND WORKING MEMORY
Working memory — the ability to hold information in mind while using it — is commonly affected in dyslexia. This affects: following multi-step instructions, mental arithmetic, taking notes while listening, and keeping track of where you are in a complex task.

DYSLEXIA AND PROCESSING SPEED
Processing speed is often reduced in dyslexia — not cognitive speed, but the speed at which reading and writing can be produced. This is why extra time in assessments is not an unfair advantage but an access adjustment. The person needs more time to produce the same output, not more time to think.

DYSLEXIA AND STRENGTHS
Dyslexia is associated with a broader neurological profile that frequently includes strengths in: three-dimensional thinking and spatial reasoning, creative and lateral thinking, verbal communication and storytelling, entrepreneurial thinking, and the ability to see the big picture rather than getting lost in detail. Many highly successful architects, engineers, artists, entrepreneurs, and leaders are dyslexic.

DYSLEXIA AND CO-OCCURRING CONDITIONS
Dyslexia rarely occurs alone. The most common co-occurring conditions are ADHD (present in around 40% of people with dyslexia), dyspraxia, dyscalculia, and developmental language disorder. The combination of conditions is often more significant than any single diagnosis.

DYSLEXIA IN ADULTHOOD
Dyslexia is lifelong. Adults with undiagnosed or unsupported dyslexia have often developed extensive workarounds — dictating rather than writing, avoiding reading aloud, memorising rather than reading. The diagnosis in adulthood explains a lifetime of difficulty and opens access to technology and support.

Text-to-speech, speech-to-text, grammar checkers, and structured literacy tools have transformed what is possible for adults with dyslexia in employment and daily life.