Repetition blindness (RB) is a phenomenon observed in rapid serial visual presentation.
This finding supports that people are "blind" for the second occurrence of a repetitive item in an RSVP series.
Nancy Kanwisher has argued that it involves failure to tokenize the second appearance of a repeated stimulus.
Lack of tokenization means that the second appearance of the stimulus is being dropped from short term memory before it can be identified, and hence, remains unreportable.
This failure to properly reconstruct the list arises from the poor encoding cues that are the result of the RSVP task.