Abstract
The Neural Cascade of Attentional Control
Highlights
In our complex and multifaceted world, our senses are continuously bombarded with much more information than our brains can fully process
It has been hypothesized that this frontal-parietal network controls attention by sending “top-down” signals that “bias” activity in specific regions of visual cortex
This biasing activity is, in turn, thought to facilitate the accurate, rapid processing of information in attended regions of space. These neuroimaging studies were unable to elucidate the temporal cascade of neural events associated with the control of attention—critical information for understanding how different brain regions coordinate their actions as succeeding stages of attentional control unfold
Summary
In our complex and multifaceted world, our senses are continuously bombarded with much more information than our brains can fully process. Previous functional neuroimaging studies have revealed a network of frontal and parietal brain regions that, along with the visual cortex, show enhanced activity during visual-spatial attention. It has been hypothesized that this frontal-parietal network controls attention by sending “top-down” signals that “bias” activity in specific regions of visual cortex.
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