Attentional blink
Attentional blink (AB) is a phenomenon observed in rapid serial visual presentation (RSVP). When presented with a sequence of visual stimuli in rapid succession at the same spatial location on a screen, a participant will often fail to detect a second salient target occurring in succession if it is presented between 180-450 ms after the first one. The term attentional blink was first used in 1992, although the phenomenon was probably known before.