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Related Concept Videos

Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

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Related Experiment Video

Updated: Jun 30, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
06:46

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Attending to multiple visual streams: interactions between location-based and category-based attentional selection.

Sabrina Fagioli1, Emiliano Macaluso

  • 1Neuro-imaging Laborartory, Santa Lucia Foundation, Rome, Italy. sabrina.fagioli@uniroma1.it

Journal of Cognitive Neuroscience
|October 1, 2008
PubMed
Summary
This summary is machine-generated.

Dividing attention across locations or categories involves the dorsal fronto-parietal network. This brain network controls both spatial and feature-based selection processes during complex attention tasks.

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Last Updated: Jun 30, 2026

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06:46

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Published on: March 18, 2019

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
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Published on: July 5, 2015

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
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Published on: August 29, 2018

Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Human Attention

Background:

  • Individuals can divide attention across multiple information streams and locations.
  • The neural basis distinguishing spatial attention costs from general interference in multi-stream monitoring remains unclear.

Purpose of the Study:

  • To disentangle the neural correlates of location-based versus category-based attentional selection.
  • To investigate the role of the dorsal fronto-parietal network in these distinct attentional processes using functional magnetic resonance imaging (fMRI).

Main Methods:

  • Employed a factorial design with fMRI to examine attentional selection.
  • Participants monitored overlapping visual stimuli (red and green shapes) in one or both hemifields, focusing on single or multiple categories.

Main Results:

  • Behavioral data confirmed costs associated with dividing spatial attention and monitoring multiple categories.
  • fMRI revealed activation in a dorsal fronto-parietal network for both spatial and category-based attention.
  • A significant interaction between location- and category-based attention was observed within this network, indicating distinct control mechanisms.

Conclusions:

  • The dorsal fronto-parietal cortex is crucial for both location- and category-based attentional selection.
  • These findings demonstrate that this network actively controls multiple streams of information, rather than solely reflecting general task difficulty.