Results 81 to 90 of about 4,659 (203)

A Patient-Specific Computational Framework for the Argus II Implant

open access: yesIEEE Open Journal of Engineering in Medicine and Biology, 2020
Goal: Retinal prosthesis performance is limited by the variability of elicited phosphenes. The stimulating electrode's position with respect to retinal ganglion cells (RGCs) affects both perceptual threshold and phosphene shape.
Kathleen E. Finn   +4 more
doaj   +1 more source

www.fevertravel.ch: an online study prototype to evaluate the safety and feasibility of computerized guidelines for fever in returning travellers and migrants [PDF]

open access: yes, 2007
Following the paper publication of practice guidelines for the management of febrile patients returning from the tropics, we constructed a consultation website that comprises a decision chart and specific diagnostic features providing medical diagnostic ...
Ambresin, Anne-Emmanuelle   +5 more
core   +1 more source

On the “blindness” of blindsight: What is the evidence for phenomenal awareness in the absence of primary visual cortex (V1)? [PDF]

open access: yes, 2019
Blindsight has been central to theories of phenomenal awareness; that a lesion to primary visual cortex (V1) abolishes all phenomenal awareness while unconscious visual functions can remain has led to the views that this region plays in generating visual
Mazzi, C.   +5 more
core   +1 more source

Processing of emotional expression in subliminal and low-visibility images [PDF]

open access: yes, 2013
This thesis investigated the processing of emotional stimuli by the visual system, and how the processing of emotions interacts with visual awareness. Emotions have been given ‘special’ status by some previous research, with evidence that the processing ...
Filmer, Hannah
core  

Exploring Cortical Connectivity of Visual Prosthesis Users: Resting-State Study

open access: yesEngineering Proceedings
Electrophysiological studies reveal significant organizational and functional differences in the cortex of blind individuals compared to sighted individuals.
María del Mar Ayuso Arroyave   +4 more
doaj   +1 more source

Integrating Eye-Tracking With Cortical Visual Prostheses in Patients Without Eyes: A Case Study

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering
Cortical prostheses aim to provide artificial vision to blind individuals by electrically stimulating the occipital cortex to induce visual sensations called phosphenes.
Dorota Waclawczyk   +4 more
doaj   +1 more source

Dopamine Activation Preserves Visual Motion Perception Despite Noise Interference of Human V5/MT [PDF]

open access: yes, 2016
Copyright © 2016 Yousif et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License Creative Commons Attribution 4.0 International, which permits unrestricted use, distribution and reproduction in any ...
Abou-El-Ela Bourquin, Bilal   +5 more
core   +3 more sources

Early Globus Pallidus Internus Stimulation in Pediatric Patients With Generalized Primary Dystonia: Long-Term Efficacy and Safety [PDF]

open access: yes, 2010
Primary generalized dystonia presents mainly at a young age and commonly is severely disabling. The authors report the long-term follow-up (mean, 73 months; range, 50-101 months) of 5 pediatric patients (mean age at surgery 13 years; range, 8-16 years ...
Berend Feddersen   +6 more
core   +1 more source

Cortical Dynamics of Phosphene Perception: A Study Using EEG Signals

open access: yesEngineering Proceedings
The electrical stimulation of the primary occipital cortex can evoke luminous perceptions known as phosphenes, forming the basis for cortical visual prostheses for blind individuals.
Fernando Daniel Farfán   +4 more
doaj   +1 more source

Emotion Recognition with Simulated Phosphene Vision

open access: yesProceedings of the 2nd Workshop on Multimedia for Accessible Human Computer Interfaces, 2019
Electrical stimulation of retina, optic nerve or cortex is found to elicit visual sensations, known as phosphenes. This allows visual prosthetics to partially restore vision by representing the visual field as a phosphene pattern. Since the resolution and performance of visual prostheses are limited, only a fraction of the information in a visual scene
Bollen, C.J.M.   +3 more
openaire   +2 more sources

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