viernes, 6 de mayo de 2011


"A phosphene is an entoptic phenomenon characterized by the experience of seeing light without light actually entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes are flashes of light, often associated with optic neuritis, induced by movement or sound.
Phosphenes can be directly induced by mechanical, electrical, or magnetic stimulation of the retina or visual cortex as well as by random firing of cells in the visual system. Phosphenes have also been reported by meditators (commonly called nimitta); people who go for long periods without visual stimulation (also known as the prisoner's cinema); or those who are using psychedelic drugs." Wikipedia

"Fosfenos es un Fenómeno entóptico, caracterizado por la sensación de ver manchas luminosas, causada por la estimulación mecánica, eléctrica o magnética de la retina o corteza visual. Un ejemplo de fosfeno son los patrones luminosos que se ven al frotar los párpados con bastante presión." Wikipedia

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