Hypnotized subjects who are told not to see certain lines claim that they do not see them. How do we know that they do see them?

Question

Quizplus · Accepted Answer

They experience certain optical illusions that they would not experience if they really did not see those lines. When subjects are hypnotized and told not to see certain lines, they may still be unconsciously processing the stimuli, leading to certain optical illusions that are specific to the presence of those lines. These illusions provide evidence that the subjects do, in fact, see the lines despite their conscious claims.

Hypnotized Subjects Who Are Told Not to See Certain Lines