Contribution of the medial eye field network to the voluntary deployment of visuospatial attention

Guillaume Herbet () and Hugues Duffau
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Guillaume Herbet: University of Montpellier, INSERM U1191, CNRS UMR 5203
Hugues Duffau: University of Montpellier, INSERM U1191, CNRS UMR 5203

Nature Communications, 2022, vol. 13, issue 1, 1-13

Abstract: Abstract Historically, the study of patients with spatial neglect has provided fundamental insights into the neural basis of spatial attention. However, lesion mapping studies have been unsuccessful in establishing the potential role of associative networks spreading on the dorsal-medial axis, mainly because they are uncommonly targeted by vascular injuries. Here we combine machine learning-based lesion-symptom mapping, disconnection analyses and the longitudinal behavioral data of 128 patients with well-delineated surgical resections. The analyses show that surgical resections in a location compatible with both the supplementary and the cingulate eye fields, and disrupting the dorsal-medial fiber network, are specifically associated with severely diminished performance on a visual search task (i.e., visuo-motor exploratory neglect) with intact performance on a task probing the perceptual component of neglect. This general finding provides causal evidence for a role of the frontal-medial network in the voluntary deployment of visuo-spatial attention.

Date: 2022
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DOI: 10.1038/s41467-022-28030-3

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