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Related Experiment Videos

Fast and slow parietal pathways mediate spatial attention.

Christopher D Chambers1, Jonathan M Payne, Mark G Stokes

  • 1Cognitive Neuroscience Laboratory, Department of Psychology, University of Melbourne, Victoria 3010, Australia. c.chambers@psych.unimelb.edu.au

Nature Neuroscience
|February 26, 2004
PubMed
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The right angular gyrus is crucial for spatial attention, guiding behavior by mediating spatial orienting. This brain region

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Human Behavior

Background:

  • Selective attention mechanisms are essential for guiding human behavior.
  • The parietal cortex is a known neural substrate for spatial attention.
  • The specific roles of parietal subregions in attention remain unclear.

Purpose of the Study:

  • To investigate the unique role of distinct parietal subregions in spatial attention.
  • To determine the neural mechanisms underlying spatial orienting.

Main Methods:

  • Single-pulse transcranial magnetic stimulation (TMS) was employed.
  • The study focused on the right parietal cortex, specifically the angular gyrus.

Main Results:

Related Experiment Videos

  • The angular gyrus of the right parietal cortex mediates spatial orienting.
  • This mediation occurs during two distinct time periods post-event onset.
  • Biphasic involvement suggests necessity of both fast and slow visual pathways for attention.

    • Conclusions:

    • The right angular gyrus plays a critical role in spatial attention.
    • Attention orienting involves distinct temporal phases supported by different visual processing speeds.