There are three neural feedback pathways to the primary visual cortex (V1): corticocortical,
pulvinocortical, and cholinergic. What are the respective functions of these three …

Transcranial magnetic stimulation (TMS) continues to deliver on its promise as a research
tool. In this review article we focus on the application of TMS to early visual cortex (V1, V2 …

The segregation of figures from the background is an important step in visual perception. In
primary visual cortex, figures evoke stronger activity than backgrounds during a delayed …

Human visual recognition activates a dense network of overlapping feedforward and
recurrent neuronal processes, making it hard to disentangle processing in the feedforward …

Visual masking is a technique used in cognitive research to understand pre-conscious
processes (priming, for example), consciousness, visual limits, and perception issues …

There is conscious vision, and there is unconscious visual processing. So far so good. But
where lies the boundary between the two? What are the visual functions that shape the …

Visual processing is a complex task which is best investigated using sensitive multivariate
analysis methods that can capture representation-specific brain activity over both time and …

Figure-ground segregation is the process by which the visual system identifies image
elements of figures and segregates them from the background. Previous studies examined …

In this chapter, I examine the problems that cognitively penetrated (CP) raises for the
epistemic role of perception in justifying empirical beliefs. I assess both internalistic and …

Perceptual systems must create discrete objects and events out of a continuous flow of
sensory information. Previous studies have demonstrated oscillatory effects in the …