Attention has been found to have a wide variety of effects on the responses of neurons in
visual cortex. We describe a model of attention that exhibits each of these different forms of …

Advances on several fronts have refined our understanding of the neuronal mechanisms of
attention. This review focuses on recent progress in understanding visual attention through …

Attention typically amplifies neuronal responses evoked by task-relevant stimuli while
attenuating responses to task-irrelevant distracters. In this context, visual distracters …

Attention allows us to select relevant sensory information for preferential processing.
Behaviourally, it improves performance in various visual tasks. One prominent effect of …

Although many studies have shown that attention to a stimulus can enhance the responses
of individual cortical sensory neurons, little is known about how attention accomplishes this …

How do neuronal populations represent concurrent stimuli? We measured population
responses in cat primary visual cortex (V1) using electrode arrays. Population responses to …

Selective attention is the top-down mechanism to allocate neuronal processing resources to
the most relevant subset of the information provided by an organism's sensors. Attentional …

In natural viewing, a visual stimulus that is the target of attention is generally surrounded by
many irrelevant distracters. Stimuli falling in the receptive field surround can influence the …

Most models assume that top-down attention enhances the gain of sensory neurons tuned to
behaviorally relevant stimuli (on-target gain). However, theoretical work suggests that when …

Visual perception depends strongly on spatial context. A profound example is visual
crowding, whereby the presence of nearby stimuli impairs the discriminability of object …