a form of dyslexia (see alexia) in which a person is able to read words but has difficulty identifying their individual constituent letters. This is caused by a failure of the letter-to-word binding system, resulting in the migration of letters between words. Naturally, people with this disorder are able to read letters or words significantly better when they are presented in isolation than when presented in a sentence.
ATTENTIONAL DYSLEXIA: "A person with attentional dyslexia cannot read individual letters within a word, but is able to read the word itself."