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Related Concept Videos

Association Areas of the Cortex01:21

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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Related Experiment Video

Updated: Jul 4, 2026

A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets
08:45

A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets

Published on: December 5, 2014

The attentional blink modulates activity in the early visual cortex.

Grit Hein1, Arjen Alink, Andreas Kleinschmidt

  • 1Clinic for Neurology, Goethe-University, Frankfurt am Main, Germany. grit.hein@gmail.com

Journal of Cognitive Neuroscience
|May 31, 2008
PubMed
Summary

The attentional blink (AB) impairs identifying a second visual target when it closely follows a first. Brain imaging reveals reduced neural activity in early visual areas and parietal cortex during this attentional competition.

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Last Updated: Jul 4, 2026

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06:46

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

Published on: March 18, 2019

Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Visual Perception

Background:

  • The attentional blink (AB) is a phenomenon demonstrating impaired perception of a second target (T2) when presented shortly after a first target (T1).
  • This effect highlights competition for limited visual attention resources.
  • Understanding the neural underpinnings of the AB is crucial for comprehending attentional mechanisms.

Purpose of the Study:

  • To investigate the neural correlates of the attentional blink using functional magnetic resonance imaging (fMRI).
  • To examine how attentional competition impacts activity in early visual processing areas and higher-order brain regions.

Main Methods:

  • Participants performed a rapid serial visual presentation task designed to elicit the attentional blink.
  • fMRI was employed to measure brain activity while participants identified target stimuli.
  • Individually defined retinotopic representations were used to analyze visual cortex activity.

Main Results:

  • A significant reduction in neural response was observed in visual area V3, with marginal reductions in V2 and V1, mirroring the behavioral AB effect.
  • Reduced visual activity in early cortical areas was associated with decreased neural response in the inferior parietal cortex.
  • These findings suggest that attentional competition modulates neural activity across both early visual and parietal regions.

Conclusions:

  • Attentional competition, as evidenced by the AB, significantly impacts neural processing in early visual cortex (V1-V3) and the inferior parietal cortex.
  • The study provides a neural basis for the attentional blink, linking behavioral deficits to specific patterns of brain activity.
  • These results advance our understanding of how attention modulates visual processing and competition in the brain.