title: Attentional blink and attentional capture: endogenous versus exogenous control over paying attention to two important events in close succession.
abstract: Identification of the second of two targets is impaired if it is presented less than about 500 msec after the first This attentional blink (AB) occurs under dual-task conditions in which observers are required to report both targets. AB magnitude has been estimated by subtracting the accuracy scores in the dual task from the corresponding scores in a single task in which observers are instructed to ignore the first target. Experiment 1 showed this procedure to be inappropriate, because the first target cannot be ignored. The remaining three experiments elaborated on this finding andrevealed separate endogenous and exogenous sources of the second-target deficit. A parallel was drawn between the AB deficit and the deficit observed in attentional capture. Both types of deficit can be explained on the basis of a hybrid input-filtering model in which endogenous and exogenous factors are subserved by different pathways.
authors.affiliation: Department of Psychology, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada. tspalek@sfu.ca
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Spalek
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Falcon
authors.forename: Vincent
authors.initials: V
authors.lastname: Di Lollo
mesh_terms: D001288:Attention; D001767:Blinking; D006801:Humans; D011930:Reaction Time; D014796:Visual Perception