Publication
Spatially selective activation of the visual cortex via intraneural stimulation of the optic nerve
Related publications (83)
Predicting Visual Stimuli From Cortical Response Recorded With Wide-Field Imaging in a Mouse
Silvestro Micera, Daniela De Luca
Neural decoding of the visual system is a subject of research interest, both to understand how the visual system works and to be able to use this knowledge in areas, such as computer vision or brain-computer interfaces. Spike-based decoding is often used, ...
Ieee-Inst Electrical Electronics Engineers Inc2024Convolutional neural network classifies visual stimuli from cortical response recorded with wide-field imaging in mice
Silvestro Micera, Daniela De Luca
Objective. The optic nerve is a good location for a visual neuroprosthesis. It can be targeted when a subject cannot receive a retinal prosthesis and it is less invasive than a cortical implant. The effectiveness of an electrical neuroprosthesis depends on ...
IOP Publishing Ltd2023Fabrication and validation of an intraneural interface tailored for optic nerve stimulation
Technological progress in materials science and microengineering along with new discoveries in neuroscience have contributed to restore lost or impaired sensory functions by closely interfacing with the nervous system. Electronic devices have begun to be i ...
EPFL2022Three-dimensional multilayer concentric bipolar electrodes restrict spatial activation in optic nerve stimulation
Diego Ghezzi, Eleonora Borda, Ricardo Camilo Moreira, Marta Jole Ildelfonsa Airaghi Leccardi, Vivien Gaillet, Elodie Geneviève Zollinger
Objective. Intraneural nerve interfaces often operate in a monopolar configuration with a common and distant ground electrode. This configuration leads to a wide spreading of the electric field. Therefore, this approach is suboptimal for intraneural nerve ...
IOP Publishing Ltd2022Predicting visual stimuli from cortical response recorded with widefield imaging in a mouse
Silvestro Micera, Daniela De Luca
Optic nerve stimulation holds great potential for visual prostheses. Its effectiveness depends on the stimulation protocol, which can be optimized to achieve cortical activation similar to that evoked in response to visual stimuli. To identify a target cor ...
IEEE2022POLYRETINA restores light responses in vivo in blind Gottingen minipigs
Diego Ghezzi, Marta Jole Ildelfonsa Airaghi Leccardi, Paola Vagni, Elodie Geneviève Zollinger, Charles-Henri Puncho Jérôme Vila, Golnaz Sherafatipour
Retinal prostheses hold potential for artificial vision in blind people. Here, authors show that POLYRETINA, a large and high-density photovoltaic epiretinal device, restores light-evoked cortical responses in blind Gottingen minipigs at safe irradiance le ...
NATURE PORTFOLIO2022A machine-learning algorithm correctly classifies cortical evoked potentials from both visual stimulation and electrical stimulation of the optic nerve
Diego Ghezzi, Eleonora Borda, Vivien Gaillet, Elodie Geneviève Zollinger
Objective. Optic nerve's intraneural stimulation is an emerging neuroprosthetic approach to provide artificial vision to totally blind patients. An open question is the possibility to evoke individual non-overlapping phosphenes via selective intraneural op ...
IOP PUBLISHING LTD2021Photovoltaic stimulation of retinal microcircuit for vision restoration
Sight restoration through retinal prostheses was still a mere dream a century ago. Current challenges are even greater: providing a quantitatively and qualitatively useful artificial vision to late blind patients. Existing approaches all face engineering a ...
EPFL2021Investigation of electrical stimulation of the optic nerve for artificial vision
Thanks to recent technological advances in microelectronics and bioengineering, it is now possible to restore lost or impaired sensory modalities by interfering the nervous system with elec-tronic devices and artificially reproducing the electrical encodin ...
EPFL2021Enhancing visual motion discrimination by desynchronizing bifocal oscillatory activity
Friedhelm Christoph Hummel, Estelle Emeline Raffin, Roberto Felipe Salamanca Giron, Sarah Bernardina Zandvliet, Martin Seeber
Visual motion discrimination involves reciprocal interactions in the alpha band between the primary visual cortex (V1) and mediotemporal areas (V5/MT). We investigated whether modulating alpha phase synchronization using individualized multisite transcrani ...
2021