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The frontal eye field (FEF) is known to be involved in saccade generation and visual attention control. Studies applying covert attentional orienting paradigms have shown that the right FEF is involved in attentional shifts to both the left and the right hemifield. In the current study, we aimed at examining the effects of inhibitory continuous theta burst (cTBS) transcranial magnetic stimulation over the right FEF on overt attentional orienting, as measured by a free visual exploration paradigm. In forty-two healthy subjects, free visual exploration of naturalistic pictures was tested in three conditions: (1) after cTBS over the right FEF; (2) after cTBS over a control site (vertex); and, (3) without any stimulation. The results showed that cTBS over the right FEF-but not cTBS over the vertex-triggered significant changes in the spatial distribution of the cumulative fixation duration. Compared to the group without stimulation and the group with cTBS over the vertex, cTBS over the right FEF decreased cumulative fixation duration in the left and in the right peripheral regions, and increased cumulative fixation duration in the central region. The present study supports the view that the right FEF is involved in the bilateral control of not only covert, but also of overt, peripheral visual attention.

Original publication

DOI

10.1016/j.neuropsychologia.2015.01.027

Type

Journal article

Journal

Neuropsychologia

Publication Date

07/2015

Volume

74

Pages

37 - 41

Keywords

Attention, Continuous Theta Burst Stimulation (cTBS), Dorsal attentional network, Eye movements, Frontal Eye Field (FEF), Repetitive Transcranial Magnetic Stimulation (rTMS), Adult, Analysis of Variance, Attention, Eye Movements, Female, Functional Laterality, Humans, Male, Middle Aged, Parietal Lobe, Photic Stimulation, Transcranial Direct Current Stimulation, Visual Fields, Visual Perception, Young Adult