Working Paper Review Version 2 This version is not peer-reviewed

Visual Cortical Prosthesis : An Electrical Perspective

Version 1 : Received: 21 December 2020 / Approved: 22 December 2020 / Online: 22 December 2020 (12:52:08 CET)
Version 2 : Received: 20 March 2021 / Approved: 23 March 2021 / Online: 23 March 2021 (10:42:30 CET)

How to cite: Pio-Lopez, L.; Poulkouras, R.; Depannemaecker, D. Visual Cortical Prosthesis : An Electrical Perspective. Preprints 2020, 2020120562 Pio-Lopez, L.; Poulkouras, R.; Depannemaecker, D. Visual Cortical Prosthesis : An Electrical Perspective. Preprints 2020, 2020120562

Abstract

The electrical stimulation of the visual cortices has the potential to restore vision to blind individuals. Until now, the results of visual cortical prosthetics has been limited as no prosthesis has restored a full working vision but the field has shown a renewed interest these last years thanks to wireless and technological advances. However, several scientific and technical challenges are still open in order to achieve the therapeutic benefit expected by these new devices. One of the main challenges is the electrical stimulation of the brain itself. In this review, we analyze the results in electrode-based visual cortical prosthetics from the electrical point of view. We first briefly describe what is known about the electrode-tissue interface and safety of electrical stimulation. Then we focus on the psychophysics of prosthetic vision and the state-of-the-art on the interplay between the electrical stimulation of the visual cortex and phosphene perception. Lastly, we discuss the challenges and perspectives of visual cortex electrical stimulation and electrode array design to develop the new generation implantable cortical visual prostheses.

Keywords

visual cortical prosthesis; brain-machine interface; electrical stimulation; prosthetic vision

Subject

Medicine and Pharmacology, Ophthalmology

Comments (1)

Comment 1
Received: 23 March 2021
Commenter: Léo Pio-Lopez
Commenter's Conflict of Interests: Author
Comment: Link to published article and last changes in the perspectives section
+ Respond to this comment

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 1
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.