Results 291 to 300 of about 2,167,342 (361)

Thalamic Visual Prosthesis Project

2016
The lateral geniculate nucleus of the thalamus (LGN) is a well-studied structure in the early visual pathway that links the retina to the primary visual cortex. As a deep structure, it has been long overlooked by the visual prosthesis field due to surgical inaccessibility.
Margee J. Kyada, Nathaniel J. Killian, John S. Pezaris   +2 more
openaire   +2 more sources

The Intracortical Visual Prosthesis Project

2016
The possibility of engineering, testing, and deploying a cybernetic interface to the visual areas of the human brain has inspired scientists, biomedical engineers, clinicians, and science fiction writers. Implemented as a cortical visual prosthesis, visual perception might be provided to individuals with blindness.
P. Troyk
openaire   +2 more sources

The application of computer vision to visual prosthesis.

Artificial Organs, 2021
A visual prosthesis is an auxiliary device for patients with blinding diseases that cannot be treated with conventional surgery or drugs. It converts captured images into corresponding electrical stimulation patterns, according to which phosphenes are ...
Jing Wang, Haiyi Zhu, Jianyun Liu, Heng Li, Yanling Han, Ruyan Zhou, Yun Zhang   +6 more
semanticscholar   +1 more source

Tissue response to a chronically implantable wireless intracortical visual prosthesis (Gennaris array)

Journal of Neural Engineering, 2020
Objective. Cortical vision prostheses aim to restore visual percepts to those who have lost sight by delivering electrical stimulation to the visual cortex. These devices need to be implanted intracranially using subdural or intracortical microelectrodes,
J. Rosenfeld, Y. Wong, E. Yan, Julian Szlawski, Anand Mohan, Jonathan C. M. Clark, Marcello Rosa, Arthur James Lowery   +7 more
semanticscholar   +1 more source

Electronic Visual Prosthesis

Artificial Organs, 2003
Abstract: Retinitis pigmentosa (RP) and age‐related macular degeneration (AMD) are incurable diseases that result in profound vision loss due to degeneration of the light sensing photoreceptors. However, the discovery that direct electrical stimulation of the retinal neurons creates visual sensation has inspired prosthetic devices aimed to restore ...
Wentai, Liu, Mohanasankar, Sivaprakasam, Praveen R, Singh, Rizwan, Bashirullah, Guoxing, Wang   +4 more
openaire   +2 more sources

Toward the development of a color visual prosthesis

Journal of Neural Engineering, 2020
Objective. All of the human prosthetic visual systems implanted so far have been achromatic. Schmidt et al (1996 Brain 119 507–22) reported that at low stimulation intensities their subject reported that phosphenes usually had a specific hue, but when ...
V. Towle, Tuan Pham, M. Mccaffrey, Danielle Allen, P. Troyk   +4 more
semanticscholar   +1 more source

A Wearable Real-Time System for Simultaneous Wireless Power and Data Transmission to Cortical Visual Prosthesis

IEEE Transactions on Biomedical Circuits and Systems
Wireless, miniaturised and distributed neural interfaces are emerging neurotechnologies. Although extensive research efforts contribute to their technological advancement, the need for real-time systems enabling simultaneous wireless information and ...
Gian Luca Barbruni, Francesca Rodino, P. Ros, D. Demarchi, D. Ghezzi, Sandro Carrara   +5 more
semanticscholar   +1 more source

Experimental visual prosthesis

Proceedings of the Institution of Electrical Engineers, 1973
Of the methods available which seek artificially to replace the sensory input lost through blindness, the approach which should ultimately be of greatest value is that by which visual information is fed directly to the brain. The paper reviews earlier work in this field and describes a new prosthesis which gives grounds for optimism.
openaire   +1 more source

Psychophysical Evaluation for Visual Prosthesis

Annual Review of Biomedical Engineering, 2008
Vision restoration through retinal, optic nerve, and cortical implants is no longer just the stuff of fantasy. The design and development of visual prostheses rapidly move from the engineering phase toward preclinical and clinical trials, yet the benchmarks to determine their efficacy in blind research subjects have received very little attention, and
openaire   +2 more sources

Implantable Imaging System for Visual Prosthesis

Artificial Organs, 2010
AbstractIn order to propose a method of intraocular imaging system for the visual prosthesis, an implantable microcamera was developed and evaluated in vivo. The microcamera was specially developed and shaped to fit the rabbit's lens capsule and encapsulated with the biocompatible silicone. To evaluate the feasibility of this novel approach, the custom‐
Chuanqing, Zhou, Chen, Tao, Xinyu, Chai, Yong, Sun, Qiushi, Ren   +4 more
openaire   +2 more sources