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Saccades, attentional orienting and disengagement: the effects of anodal tDCS over right posterior parietal cortex (PPC) and frontal eye field (FEF)

View ORCID ProfileLorenzo Diana, Patrick Pilastro, View ORCID ProfileEdoardo N. Aiello, View ORCID ProfileAleksandra K. Eberhard-Moscicka, René M. Müri, View ORCID ProfileNadia Bolognini
doi: https://doi.org/10.1101/2021.01.25.428095
Lorenzo Diana
1School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
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  • For correspondence: l.diana1@campus.unimib.it
Patrick Pilastro
2Department of Psychology, University of Milano-Bicocca, Milan, Italy
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Edoardo N. Aiello
1School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
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Aleksandra K. Eberhard-Moscicka
4Perception and Eye Movement Laboratory, Departments of Neurology and BioMedical Research, Bern University Hospital Inselspital, University of Bern, Switzerland
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René M. Müri
5Department of Neurology, Bern University Hospital, Inselspital, University of Bern, Switzerland
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Nadia Bolognini
6Department of Psychology & Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Milan, Italy
7Laboratory of Neuropsychology, Istituto Auxologico Italiano, IRCCS, Milan,Italy
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ABSTRACT

In the present work, we applied anodal transcranial direct current stimulation (tDCS) over the posterior parietal cortex (PPC) and frontal eye field (FEF) of the right hemisphere in healthy subjects to modulate attentional orienting and disengagement in a gap-overlap task. Both stimulations led to bilateral improvements in saccadic reaction times (SRTs), with larger effects for gap trials. However, analyses showed that the gap effect was not affected by tDCS. Importantly, we observed significant effects of baseline performance that may mediate side- and task-specific effects of brain stimulation.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • l.diana1{at}campus.unimib.it

  • p.pilatro{at}campus.unimib.it

  • e.aiello5{at}campus.unimib.it

  • aleksandra.eberhard{at}neuro.unibe.ch

  • rene.mueri{at}dbmr.unibe.ch

  • nadia.bolognini{at}unimib.it

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted January 26, 2021.
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Saccades, attentional orienting and disengagement: the effects of anodal tDCS over right posterior parietal cortex (PPC) and frontal eye field (FEF)
Lorenzo Diana, Patrick Pilastro, Edoardo N. Aiello, Aleksandra K. Eberhard-Moscicka, René M. Müri, Nadia Bolognini
bioRxiv 2021.01.25.428095; doi: https://doi.org/10.1101/2021.01.25.428095
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Saccades, attentional orienting and disengagement: the effects of anodal tDCS over right posterior parietal cortex (PPC) and frontal eye field (FEF)
Lorenzo Diana, Patrick Pilastro, Edoardo N. Aiello, Aleksandra K. Eberhard-Moscicka, René M. Müri, Nadia Bolognini
bioRxiv 2021.01.25.428095; doi: https://doi.org/10.1101/2021.01.25.428095

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