Perception of letters in words: seek not and ye shall find.
Subjects perceive a letter in a briefly presented word more accurately when they attend to the whole word than when they focus their attention on just the letter they want to see.
D001288:Attention; D004192:Discrimination, Psychological; D005403:Fixation, Ocular; D005556:Form Perception; D006801:Humans; D011932:Reading