Abstract
Previous studies showed that contrast sensitivity peaks at around the location of a target attentively tracked. In this study, we investigated whether the spatial spread of the attentional facilitation was influenced by the range of probe locations. The results showed that the spatial spread of the contrast sensitivity function varied with the range of the probe location. This suggests that the spatial spread of attentional facilitation is controlled independently from the attentional facilitation center, which is found to be near the tracked taget.
