A person is participating in an attention study. They are asked to fixate on a cross in the middle of the screen and watch for a word to appear in place of the cross. When the word appears, what type...

A person is participating in an attention study. They are asked to fixate on a cross in the middle of the screen and watch for a word to appear in place of the cross. When the word appears, what type of attention is the person using to perceive it?