Opposite biases in salience-based selection for the left and right posterior parietal cortex

Carmel Mevorach; Glyn W. Humphreys; Lilach Shalev

doi:10.1038/nn1709

Opposite biases in salience-based selection for the left and right posterior parietal cortex

Carmel Mevorach^*, Glyn W. Humphreys, Lilach Shalev

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

160 Scopus citations

Abstract

Visual selection is determined in part by the saliency of stimuli. We assessed the brain mechanisms determining attentional responses to saliency. Repetitive transcranial magnetic stimulation (rTMS) was applied to the left and right posterior parietal cortices (PPC) immediately before participants were asked to identify a compound letter. rTMS to the right PPC disrupted the guidance of attention toward salient stimuli, whereas rTMS to the left PPC affected the ability to bias selection away from salient stimuli. We conclude that right and left PPC have opposite roles in biasing selection to and from salient stimuli in the environment.

Original language	English
Pages (from-to)	740-742
Number of pages	3
Journal	Nature Neuroscience
Volume	9
Issue number	6
DOIs	https://doi.org/10.1038/nn1709
State	Published - 16 Jun 2006
Externally published	Yes

Funding

Funders	Funder number
Medical Research Council	G9806428
Biotechnology and Biological Sciences Research Council	BB/E000134/1

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10.1038/nn1709

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title = "Opposite biases in salience-based selection for the left and right posterior parietal cortex",

abstract = "Visual selection is determined in part by the saliency of stimuli. We assessed the brain mechanisms determining attentional responses to saliency. Repetitive transcranial magnetic stimulation (rTMS) was applied to the left and right posterior parietal cortices (PPC) immediately before participants were asked to identify a compound letter. rTMS to the right PPC disrupted the guidance of attention toward salient stimuli, whereas rTMS to the left PPC affected the ability to bias selection away from salient stimuli. We conclude that right and left PPC have opposite roles in biasing selection to and from salient stimuli in the environment.",

author = "Carmel Mevorach and Humphreys, {Glyn W.} and Lilach Shalev",

note = "Funding Information: We would like to thank A. Bagshaw and H. Allen for conducting the scanner sessions. This work was supported by grants from the Biotechnology and Biological Sciences Research Council and the Medical Research Council (UK).",

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N2 - Visual selection is determined in part by the saliency of stimuli. We assessed the brain mechanisms determining attentional responses to saliency. Repetitive transcranial magnetic stimulation (rTMS) was applied to the left and right posterior parietal cortices (PPC) immediately before participants were asked to identify a compound letter. rTMS to the right PPC disrupted the guidance of attention toward salient stimuli, whereas rTMS to the left PPC affected the ability to bias selection away from salient stimuli. We conclude that right and left PPC have opposite roles in biasing selection to and from salient stimuli in the environment.

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Opposite biases in salience-based selection for the left and right posterior parietal cortex

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