Dividing attention in the flash-lag illusion

View/ Open
Author(s)
Sarich, Dragica
Chappell, Mark
Burgess, Carly
Year published
2007
Metadata
Show full item recordAbstract
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.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.
View less >
View less >
Journal Title
Vision Research
Volume
47
Issue
4
Publisher URI
Copyright Statement
© 2007 Elsevier. Please refer to the journal's website for access to the definitive, published version.
Subject
Biomedical and clinical sciences
Psychology