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Literature DB >> 19224730

Simulations of electrode placement for a thalamic visual prosthesis.

Abstract

In this paper, placement parameters for microstimulation electrodes in a visual prosthesis are evaluated based on retinotopic models of macaque and human lateral geniculate nucleus. Phosphene patterns were simulated for idealized microwire electrodes as well as for currently available clinical electrodes. For idealized microwire electrodes, spacing as large as 600 microm in three dimensions would allow for over 250 phosphenes per visual hemifield in macaques, and over 800 in humans.

Entities: CellLine Chemical Disease Gene Species

Mesh：

Year: 2009 PMID： 19224730 PMCID： PMC5446893 DOI： 10.1109/TBME.2008.2005973

Source DB: PubMed Journal: IEEE Trans Biomed Eng ISSN： 0018-9294 Impact factor: 4.538

29 in total

1. Relationship between laminar topology and retinotopy in the rhesus lateral geniculate nucleus: results from a functional atlas.

Authors: E Erwin; F H Baker; W F Busen; J G Malpeli
Journal: J Comp Neurol Date: 1999-04-28 Impact factor: 3.215

Review 8. Eye Movement Compensation and Spatial Updating in Visual Prosthetics: Mechanisms, Limitations and Future Directions.

Authors: Nadia Paraskevoudi; John S Pezaris
Journal: Front Syst Neurosci Date: 2019-02-01

9. Visual acuity of simulated thalamic visual prostheses in normally sighted humans.

Authors: Béchir Bourkiza; Milena Vurro; Ailsa Jeffries; John S Pezaris
Journal: PLoS One Date: 2013-09-27 Impact factor: 3.240

10. Full gaze contingency provides better reading performance than head steering alone in a simulation of prosthetic vision.

Authors: Nadia Paraskevoudi; John S Pezaris
Journal: Sci Rep Date: 2021-05-27 Impact factor: 4.379

Simulations of electrode placement for a thalamic visual prosthesis.

1. Relationship between laminar topology and retinotopy in the rhesus lateral geniculate nucleus: results from a functional atlas.

2. Visual acuity measurement of prosthetic vision: a virtual-reality simulation study.

3. Effects of insertion conditions on tissue strain and vascular damage during neuroprosthetic device insertion.

4. Demonstration of artificial visual percepts generated through thalamic microstimulation.

5. A two-dimensional Kolmorogov-Smirnov test for binned data.

6. [New data on individual quantitative features of the human lateral geniculate body].

7. Visual resolution with epi-retinal electrical stimulation estimated from activation profiles in cat visual cortex.

8. Electrical stimulation of the subthalamic nucleus in advanced Parkinson's disease.

Review 9. Phosphene induction and the generation of saccadic eye movements by striate cortex.

10. Visual perception elicited by electrical stimulation of retina in blind humans.

Review 1. Getting signals into the brain: visual prosthetics through thalamic microstimulation.

2. Lateral geniculate body evoked potentials elicited by visual and electrical stimulation.

Review 3. Neurophysiological considerations for visual implants.

4. Strength-duration relationship for intra- versus extracellular stimulation with microelectrodes.

5. Simulation of thalamic prosthetic vision: reading accuracy, speed, and acuity in sighted humans.

6. Perceptual learning in a non-human primate model of artificial vision.

7. Improvement in reading performance through training with simulated thalamic visual prostheses.

Review 8. Eye Movement Compensation and Spatial Updating in Visual Prosthetics: Mechanisms, Limitations and Future Directions.

9. Visual acuity of simulated thalamic visual prostheses in normally sighted humans.

10. Full gaze contingency provides better reading performance than head steering alone in a simulation of prosthetic vision.