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Nat Neurosci. 2004 Mar;7(3):217-8. Epub 2004 Feb 22.

Fast and slow parietal pathways mediate spatial attention.

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Cognitive Neuroscience Laboratory, Department of Psychology, University of Melbourne, Victoria 3010, Australia.


Mechanisms of selective attention are vital for guiding human behavior. The parietal cortex has long been recognized as a neural substrate of spatial attention, but the unique role of distinct parietal subregions has remained unclear. Using single-pulse transcranial magnetic stimulation, we found that the angular gyrus of the right parietal cortex mediates spatial orienting during two distinct time periods after the onset of a behaviorally relevant event. The biphasic involvement of the angular gyrus suggests that both fast and slow visual pathways are necessary for orienting spatial attention.

[Indexed for MEDLINE]

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