Modality-specific control of strategic spatial attention in parietal cortex

Chambers, CD, Stokes, MG and Mattingley, JB (2004) Modality-specific control of strategic spatial attention in parietal cortex. Neuron, 44 6: 925-930. doi:10.1016/j.neuron.2004.12.009


Author Chambers, CD
Stokes, MG
Mattingley, JB
Title Modality-specific control of strategic spatial attention in parietal cortex
Journal name Neuron   Check publisher's open access policy
ISSN 0896-6273
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.1016/j.neuron.2004.12.009
Volume 44
Issue 6
Start page 925
End page 930
Total pages 6
Place of publication Cambridge
Publisher Cell Press
Language eng
Abstract The neural basis of selective spatial attention presents a significant challenge to cognitive neuroscience. Recent neuroimaging studies have suggested that regions of the parietal and temporal cortex constitute a "supramodal" network that mediates goal-directed attention in multiple sensory modalities. Here we used transcranial magnetic stimulation (TMS) to determine which cortical subregions control strategic attention in vision and touch. Healthy observers undertook an orienting task in which a central arrow cue predicted the location of a subsequent visual or somatosensory target. To determine the attentional role of cortical subregions at different stages of processing, TMS was delivered to the right hemisphere during cue or target events. Results indicated a critical role of the inferior parietal cortex in strategic orienting to visual events, but not to somatosensory events. These findings are inconsistent with the existence of a supramodal attentional network and instead provide direct evidence for modality-specific attentional processing in parietal cortex.
Keyword Neurosciences
Crossmodal Links
Visuospatial Attention
Magnetic Stimulation
Mechanisms
Neglect
Vision
Localization
Awareness
Deficit
Shifts
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Queensland Brain Institute Publications
 
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Created: Wed, 17 Oct 2007, 23:17:20 EST