What is Dyslexia?

Dyslexia – from the Greek ‘dys-’, meaning difficulty with, and ‘-lexis’, meaning words or language – is often referred to as a ‘specific learning difficulty’, meaning that it is not an all-round learning problem, but a particular difficulty at the word level.

Dyslexia occurs across the range of intellectual abilities and affects approximately 10% of individuals to varying degrees, dyslexia is defined primarily by a lack of phonological awareness which underpins the learning of literacy skills. It is a difficulty with words involving reading, spelling, writing and number work, and can also involve difficulty with remembering and sequencing information, word finding, organisation and coordination. Many individuals will have significant strengths in other areas. Dyslexia may co-exist with other specific learning difficulties such as dyspraxia and ADHD [for which a medical diagnosis is required]. The Equality Act 2010 recognises dyslexia as a disability. 

Learners with dyslexia often have weaknesses in short-term memory, sequencing, speed of processing, auditory skills and organisation. Some have enhanced functioning in areas such as visual/spatial skills and creativity, often displaying talent in other areas such as the arts or sport.

Dyslexia has a physiological basis. Research indicates neurological differences, which generally affect the left hemisphere of the brain that deals with language and sequential processing. Brain imaging shows that learners with dyslexia use different parts of the brain for reading than individuals without dyslexia. Some dyslexics tend to use memorise sight words and visual cues, rather than using letter/sound knowledge to ‘sound out’ words. Others have difficulty recognising whole words they may have encountered before. This can become evidence during early reading development or at times does not display until learners become older and experience more complex texts. 

The most commonly observed symptom of dyslexia is a difficulty in identifying and manipulating sounds in words. Due to difficulties with processing, the sounds of the language have not been sufficiently imprinted on the language centres in the left hemisphere of the brain. Difficulties are subsequently experienced in linking letters to sounds, and in correctly sequencing sounds in words, for writing and spelling.

Dyslexia occurs on a range, in individuals from all ethnic and socio-economic groups, in all languages, and across all ability ranges. Males and females are affected equally, although females may develop better coping strategies that make identification less frequent.

Approximately 10% of the population are dyslexic, which is as many as 6 million people in the UK, or 2-3 children in every classroom.

In relation to dyslexic learners’ ability, they may demonstrate a clear verbal understanding of concepts but experience unexpected difficulty when it comes to transferring their knowledge onto paper. They may continue to have ‘persistent’ difficulties in certain areas despite quality learning opportunities which have helped others with apparently similar needs. Self-esteem may suffer with reduced motivation and sometimes behaviour problems.

However, it is important to remember that learners with dyslexia can achieve as well as anyone else when identified and given the right support!

General indicators of Dyslexia

Each individual with dyslexia will show a different pattern of strengths and weaknesses that affect their acquisition of literacy skills.

Family history is significant as dyslexia is often inherited and runs in families. Some individuals with learning difficulties of a dyslexic nature may experience additional co-occurring difficulties [some of which require a medical diagnosis]. It is important to first check that there are no problems with vision and hearing affecting performance.

The following is a guide to some of the indicators of dyslexia that may occur at different developmental phases. Appropriately qualified specialist teachers and psychologists can carry out full diagnostic dyslexia assessments. Screening tests can be carried out by teachers in schools, or privately, before referrals are made for more in-depth assessment by a suitably qualified practitioner.