Does attention alter appearance? This critical issue, debated for over a century, remains
unsettled. From psychophysical evidence that covert attention affects early vision—it …

This review focuses on covert attention and how it alters early vision. I explain why attention
is considered a selective process, the constructs of covert attention, spatial endogenous and …

Covert attention, the selective processing of visual information in the absence of eye
movements, improves behavioral performance. We found that attention, both exogenous …

This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic
visual dimension where the best mechanistic understanding of attention has been achieved …

Highlights•Covert attention improves sensory processing in many visual tasks.•Covert
attention also alters the appearance of visual information.•Many spatial and temporal …

Exogenous spatial attention can be automatically engaged by a cue presented in the visual
periphery. To investigate the effects of exogenous attention, previous studies have generally …

The question of whether attention makes sensory impressions appear more intense has
been a matter of debate for over a century. Recent psychophysical studies have reported …

Exogenous covert attention is an automatic, transient form of attention that can be triggered
by sudden changes in the periphery. Here we test for the effects of attention on color …

We investigated the mechanisms underlying the effects of sustained and transient covert
attention on contrast sensitivity. The aim of this study was twofold:(1) Using a zero-noise …

Voluntary (endogenous, sustained) covert spatial attention selects relevant sensory
information for prioritized processing. The behavioral and neural consequences of such …