![]() That clear space lets light pass through and we see a quickly moving dot of white. The cells are nearly the width of those capillaries, so they cause a little bit of a traffic jam, where red blood cells pile up behind them and a clear plasma space builds up in front of them. imagery (known as phosphenes, form constants or entoptic phenomena). These lights are caused by white blood cells coursing through the tiny capillaries on the retina’s surface. Finally, I essay an explanation of these Upper Palaeolithic images that takes. The second phenomena, "dots of light darting about," is called the blue field entoptic phenomenon because it's easiest to see against a uniform blue field. These include vitreous floaters, the Purkinje tree (the vascular tree of the retina cast onto the photoreceptors), and the blue field entoptic phenomenon also known as Scheerer’s phenomenon. When the floaters drift close to the back of your eye, they cast a shadow on the retina that you can see against a uniform background. Entoptic images result from structures coming from within, casting shadows onto the retina. "They might be bits of tissue, red blood cells or clumps of protein," the narrator explains, all floating in the vitreous humor contained within your eyeball. David Lewis-Williams's system Stage 1 Experiences include geometric visual patterns such as dots, zagging lines, as well as grid patterns which are all common shapes which are universally understood by the human condition. The "small worms or transparent blobs" are eye floaters or muscae volitantes, Latin for "hovering flies," explains Michael Mauser in this TED Ed video ( via CasesBlog). If you’re reading this at night, try a blank computer screen. Any bright, uniform background should work. ![]() 2 Personification is the related attribution of human form and characteristics to abstract concepts such as nations, emotions, and natural forces, such as seasons and weather. ![]() 1 It is considered to be an innate tendency of human psychology. Whether it’s the clear blue of a sunny day or the overcast gray of winter, you should be able to see a familiar sight-slightly darker or fuzzy blobs that dip and float when you shift your gaze and sparkling dots that zig and zag. Anthropomorphism is the attribution of human traits, emotions, or intentions to non-human entities. ![]()
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