Fig. 1.

Theoretical accounts of space- and object-based attention following an endogenous pre-cue. More saturated colors indicate greater sensory enhancement, with orange corresponding to space-based effects, and yellow corresponding to object-based effects. (a) Spatial gradient only. Space-based attention is directed to the top end of the left rectangular frame via the endogenous cue (red line segments overlaid on the fixation cross). (b) Attentional spreading. (c) Attentional prioritization. Figure adapted from Fig. 2 of Shomstein (2012, p.164) with permission from John Wiley and Sons