Frequency-dependent modulation of foveal contrast sensitivity by fine-scale exogenously triggered attention
Exogenous attention is a rapid, involuntary mechanism that automatically reallocates processing resources toward salient stimuli. It enhances visual sensitivity in the vicinity of the salient stimulus, both in extrafoveal regions and within the high-acuity foveola. While the spatial frequencies (SFs) modulated by exogenous attention in extrafoveal vision are
