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The sound-induced phosphene illusion
Experimental Brain Research, 2013Crossmodal illusions clearly show how perception, rather than being a modular and self-contained function, can be dramatically altered by interactions between senses. Here, we provide evidence for a novel crossmodal "physiological" illusion, showing that sounds can boost visual cortical responses in such a way to give rise to a striking illusory visual
BOLOGNINI, NADIA +3 more
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Vision Research, 1990
A low flux of X-rays below the Cerenkov energy threshold generates a phosphene by direct action on the retina without a fluorescence in the ocular media. X-rays above the Cerenkov threshold can generate only a faint luminescence in the lens and cornea.
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A low flux of X-rays below the Cerenkov energy threshold generates a phosphene by direct action on the retina without a fluorescence in the ocular media. X-rays above the Cerenkov threshold can generate only a faint luminescence in the lens and cornea.
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Feature accentuation in phosphenated images
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012We present and evaluate different approaches to feature accentuation in phosphenated images for different image resolutions. The goal of this study is to find methods to attract an implantee's visual attention to important image content like faces, obstacles or road signs.
Filiz Isabell Kiral-Kornek +3 more
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The Threshold for Phosphenes is Lower in Migraine
Cephalalgia, 2003We have reported a preliminary study confirming hyperexicitability of occipital cortex in migraine with aura (MwA) using transcranial magnetic stimulation (TMS). We have now completed a blinded study to investigate the occipital cortex in MwA and without aura (MwoA) compared with normal controls (NC) using TMS. TMS was performed using the Caldwell MES-
S K, Aurora, K M A, Welch, F, Al-Sayed
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The Phosphene of Quick Eye Motion
Archives of Ophthalmology, 1957Entoptic imagery, which refers to reproducible visible phenomena arising within the human eye, is not a neglected subject. With Purkinje9,10it was a major field of investigation; his fiery rings are related to the present study, but he did not describe the present phenomenon proper.
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Electrophysiology of the X-Ray Phosphene
Radiation Research, 1955This is the second of two papers dealing with the ability of ionizing radiations to arouse a sensation of light (a phosphene) on striking the eye. In the first paper (Lipetz, 1), the literature on the X-ray and radium phosphenes was critically reviewed.
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Simulated phosphene model for visual prosthesis
2012 5th International Conference on BioMedical Engineering and Informatics, 2012Two simulated phosphene models were proposed in this paper. Model I was based on uniform or Gaussian round or square spots which arranged in rectangle or hexagonal arrays. Model II was based on partial clinical experiment data of one optic nerve prosthesis research. Numbers, letters and Chinese characters were pixelated by these models. The feasibility
Ying Zhao +4 more
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TEMPERATURE AND THE PHOSPHENE THRESHOLD MEASURE
Perceptual and Motor Skills, 1959Since the temperature of the experimental environment is known to be an important factor relevant to cff threshold determinations (Landis, 1951), one logically could expect some similar effects to be operating while phosphene threshold determinations were being made.
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Retinal prosthesis phosphene shape analysis
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008A retinal prosthesis system to restore sight for the blind is under development. The system is analogous to cochlear implants, in which photoreceptor input is bypassed and replaced by direct electrical stimulation of the retinal ganglion cells. Currently, six test subjects have been implanted with a 4x4 electrode array and stimulator.
D, Nanduri +4 more
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ChemInform Abstract: PHOSPHENES
Chemischer Informationsdienst, 1980AbstractDas tert.‐Butyl‐substituierte Chlorphosphin (I) läßt sich leicht dehydrochlorieren.
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