Figure 3.

Mechanisms underlying the guidance of visual attention. The stimulus is first represented by a series of feature maps, which denote the location of a simple feature in the visual field. These feature maps are used to construct an attentional priority map. When singletons fail to capture attention, the signal suppression hypothesis predicts that the attentional priority at the singleton will be lower than baseline levels. This inhibition will result in relatively poor processing at the singleton location.