Projects per year
Abstract
Cortical vision prostheses are being developed to restore sight in blind patients. Existing electrode arrays that electrically stimulate cortical tissue to artificially induce neural activity are difficult to position directly next to each other. Leaving space between implants creates gaps in the visual field where no visual percepts can be created. Here, we propose current steering as a solution to elicit a neural response between physical electrode locations. We assessed the centroid of neural activity produced by dual-electrode stimulation in the visual cortex of Sprague-Dawley rats. We determined that this centroid could be shifted between physical electrodes by altering the ratio of charge delivered to each electrode. This centroidal shift could enable better environmental perception for cortical implant patients by creating a complete visual field representation while maintaining safe array spacing.
Original language | English |
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Title of host publication | 43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
Editors | Joaquin Azpiroz, Roberto Lavarello |
Place of Publication | Piscataway NJ USA |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 5733-5736 |
Number of pages | 4 |
ISBN (Electronic) | 9781728111797, 9781728111780 |
ISBN (Print) | 9781728111803 |
DOIs | |
Publication status | Published - 2021 |
Event | International Conference of the IEEE Engineering in Medicine and Biology Society 2021 - Online, Mexico Duration: 1 Nov 2021 → 5 Nov 2021 Conference number: 43rd https://embc.embs.org/2021/ (Website) https://ieeexplore-ieee-org.ezproxy.lib.monash.edu.au/xpl/conhome/9629355/proceeding (Proceedings) |
Publication series
Name | Proceedings of the Annual International Conference of the 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) |
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Publisher | IEEE, Institute of Electrical and Electronics Engineers |
ISSN (Print) | 2694-0604 |
ISSN (Electronic) | 2375-7477 |
Conference
Conference | International Conference of the IEEE Engineering in Medicine and Biology Society 2021 |
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Abbreviated title | EMBC 2021 |
Country/Territory | Mexico |
City | Online |
Period | 1/11/21 → 5/11/21 |
Internet address |
Projects
- 2 Finished
-
Oscillations as a mechanism for neural communication
Wong, Y., Pesaran, B., Price, N. & Hagan, M.
1/01/20 → 31/12/23
Project: Research
-
Integration of feedforward and feedback circuits for decision-making
1/01/18 → 26/07/22
Project: Research