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High-resolution Brain-Computer Interfaces for Vision Restoration

Date
2025/07/24
Affiliation
KAIST
Event Location
서울대학교병원 의생명연구원
Speaker
이승우 교수
URL
Electrical stimulation of the primary visual cortex (V1) via intracortical electrodes has the potential to restore vision to those with a wide range of visual impairments, including traumatic eye injury and optic nerve injury/disease. However, the effectiveness remains limited in part due to the inability of conventional electrodes to selectively activate specific sub-populations of cortical neurons as well as the complex biological reactions that diminish the viability of electrodes over time. Recent demonstrations that magnetic stimulation from a micro-coil can selectively activate vertically-oriented cortical pyramidal neurons (PNs) while avoiding horizontal passing axons suggest the possibility that a coil-based approach may overcome some of those limitations. This talk will present a novel micro-magnetic stimulation technology based on intracortical micro-coils to enhance the effectiveness of cortical visual prostheses.