title: Dividing attention in the flash-lag illusion.
abstract: A dual-task paradigm was used to examine the effect of withdrawing attentional and/or cognitive resources from the flash-lag judgment. The flash-lag illusion was larger, and performance in a detection task was generally poorer, under dual-task conditions than in single-task control conditions. These effects were particularly pronounced when decisions in the two tasks were required simultaneously, as compared to when they could be made sequentially. The results suggest that a time-consuming process is involved in the flash-lag decision, of such a nature that prolonging the process increases the magnitude of the illusion.
authors.affiliation: Applied Cognitive Neuroscience Research Centre and School of Psychology (MG), Griffith University, Nathan, 4111 Qld, Australia.
authors.forename: Dragica
authors.initials: D
authors.lastname: Sarich
authors.forename: Mark
authors.initials: M
authors.lastname: Chappell
authors.forename: Carly
authors.initials: C
authors.lastname: Burgess
mesh_terms: D001288:Attention; D006801:Humans; D007600:Judgment; D008029:Lighting; D009039:Motion Perception; D009903:Optical Illusions; D010775:Photic Stimulation / Q000379:methods