Getting signals into the brain: visual prosthetics through thalamic microstimulation
نویسندگان
چکیده
منابع مشابه
Getting signals into the brain: visual prosthetics through thalamic microstimulation.
Common causes of blindness are diseases that affect the ocular structures, such as glaucoma, retinitis pigmentosa, and macular degeneration, rendering the eyes no longer sensitive to light. The visual pathway, however, as a predominantly central structure, is largely spared in these cases. It is thus widely thought that a device-based prosthetic approach to restoration of visual function will b...
متن کاملDemonstration of artificial visual percepts generated through thalamic microstimulation.
Electrical stimulation of the visual system might serve as the foundation for a prosthetic device for the blind. We examined whether microstimulation of the dorsal lateral geniculate nucleus of the thalamus can generate localized visual percepts in alert monkeys. To assess electrically generated percepts, an eye-movement task was used with targets presented on a computer screen (optically) or t...
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The last two hundred years have seen many advancements in prosthetic limb technology, but only minimal improvements in dexterity and grip. This is partially due to the lack of tactile sensation in prostheses. To remedy this problem, researchers are applying brain implant technology called intracortical microstimulation. Intracortical microstimulation of the brain’s somatosensory cortex can be u...
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University of Pittsburgh, Swanson School of Engineering 11.01.2016 1 Disclaimer—This paper partially fulfills a writing requirement for first year (freshman) engineering students at the University of Pittsburgh Swanson School of Engineering. This paper is a student, not a professional, paper. This paper is based on publicly available information and may not provide complete analyses of all rele...
متن کاملConsistent Phosphenes Generated by Electrical Microstimulation of the Visual Thalamus. An Experimental Approach for Thalamic Visual Neuroprostheses
UNLABELLED Most work on visual prostheses has centered on developing retinal or cortical devices. However, when retinal implants are not feasible, neuroprostheses could be implanted in the lateral geniculate nucleus (LGN) of the thalamus, the intermediate relay station of visual information from the retina to the visual cortex (V1). The objective of the present study was to determine the types ...
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ژورنال
عنوان ژورنال: Neurosurgical Focus
سال: 2009
ISSN: 1092-0684
DOI: 10.3171/2009.4.focus0986