The exact
causes of dyslexia are still not completely clear, but anatomical
and brain imagery studies show differences in the way the brain
of a dyslexic person develops and functions. Moreover, people
with dyslexia have been found to have problems with discriminating
sounds within a word, a key factor in their reading difficulties.
Dyslexia is not due to either lack of intelligence or a desire
to learn; with appropriate teaching methods dyslexics can learn
successfully.