Dyslexia
Dyslexia (pronounced: dis-LEK-see-uh) is a learning disorder that involves difficulty reading due to problems identifying speech sounds and learning how they relate to letters and words (decoding).
Etymology
The term "Dyslexia" comes from the Greek words "dys" meaning difficult or impaired, and "lexis" meaning word or language.
Symptoms
Dyslexia symptoms can be difficult to recognize before your child enters school, but some early clues may indicate a problem. Once your child is in school, dyslexia signs and symptoms may become more apparent, including:
- Reading well below the expected level for the age
- Problems processing and understanding what he or she hears
- Difficulty finding the right word or forming answers to questions
- Problems remembering the sequence of things
- Difficulty seeing (and occasionally hearing) similarities and differences in letters and words
- An inability to sound out the pronunciation of an unfamiliar word
- Difficulty spelling
- Spending an unusually long time completing tasks that involve reading or writing
- Avoiding activities that involve reading
Causes
Dyslexia is thought to be caused by genetic factors, as it often runs in families. It appears to be linked to certain genes that affect how the brain processes reading and language, as well as risk factors in the environment.
Treatment
There's no known way to correct the underlying brain abnormality that causes dyslexia — dyslexia is a lifelong problem. However, early detection and evaluation to determine specific needs and appropriate treatment can improve success.
Related Terms
External links
- Medical encyclopedia article on Dyslexia
- Wikipedia's article - Dyslexia
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