Top-down controlled, delayed selection in the attentional blink.
In a previous study, it was shown that the attentional blink (AB)--the failure to recall the 2nd of 2 visual targets (T1 and T2) presented within 500 ms in rapid serial visual presentation--is reduced when T2 is preceded by a distractor that shares a feature with T2 (e.g., color; Nieuwenstein, Chun, van der Lubbe & Hooge, 2005). Here, this cuing effect is shown to be contingent on attentional set. For example, a red distractor letter preceding a green digit T2 is an effective cue when the task is to look for red and green digits, but the same red cue is relatively ineffective when the task is to look for only green digits or when the color of T2 is not specified. It is also shown that cuing is not interrupted by a distractor intervening between the cue and T2. These findings provide evidence for a contingent, delayed selection account of the AB.
Nieuwenstein
Mark R
MR
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA. nieuwe@mit.edu
D001288:Attention; D003118:Color Perception; D003463:Cues; D004193:Discrimination Learning; D006801:Humans; D011939:Mental Recall; D010364:Pattern Recognition, Visual; D011601:Psychophysics; D011930:Reaction Time; D011932:Reading; D012691:Serial Learning