Non-invasive transcranial alternating current stimulation of spatially resolved phosphenes

Faraz Sadrzadeh-Afsharazar; Alexandre Douplik; Alexandre Douplik

doi:10.3389/fnins.2023.1228326

Frontiers in Neuroscience (Aug 2023)

Non-invasive transcranial alternating current stimulation of spatially resolved phosphenes

Faraz Sadrzadeh-Afsharazar,
Alexandre Douplik,
Alexandre Douplik

Affiliations

Faraz Sadrzadeh-Afsharazar: Photonics Group, Department of Physics, Faculty of Science, Toronto Metropolitan University (Formerly Ryerson University), Toronto, ON, Canada
Alexandre Douplik: Photonics Group, Department of Physics, Faculty of Science, Toronto Metropolitan University (Formerly Ryerson University), Toronto, ON, Canada
Alexandre Douplik: Keenan Research Centre of the Li Ka Shing (LKS) Knowledge Institute, St. Michael Hospital, Toronto, ON, Canada

DOI: https://doi.org/10.3389/fnins.2023.1228326
Journal volume & issue: Vol. 17

Abstract

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This study focused on the use of Non-Invasive Transcranial Alternating Current Stimulation (NITACS) to induce and map phosphenes (spark-like percepts in the visual field) in healthy individuals. The study found optimal stimulation parameters to induce reliable phosphenes without skin irritation or pain. The results suggest NITACS can be used as a tool to investigate the relationship between facial stimulation location and phosphene localization within the field of vision (FOV) and raise questions about the origin of phosphenes generated through NITACS. The outcomes of this study could serve as a source of inspiration for creating non-invasive visual aids in the future.

Published in Frontiers in Neuroscience

ISSN: 1662-4548 (Print); 1662-453X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Medicine: Internal medicine: Neurosciences. Biological psychiatry. Neuropsychiatry
Website: http://www.frontiersin.org/neuroscience

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Abstract

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