What is Dyslexia?

The word dyslexia is derived from the Greek, dys, difficulty with, and lex (from legein, to speak), having to do with words. Words in their many forms are encountered in listening, speaking, reading, spelling, writing, in mathematics, and in organizing, understanding, and expressing thought. Based on information from neuroscientific and linguistic research, the definition can be summarized as difficulty in the use and processing of arbitrary linguistic/symbolic codes. This is an aspect of a language continuum which includes spoken language, written language, and language comprehension.

Individuals with dyslexia are those who, despite traditional classroom teaching, have failed to master the basic elements of the language system of their culture. Since language is the necessary tool upon which subsequent academic learning is based, such persons often encounter difficulty in all educational endeavors.