«All 13 subjects volunteered to long visual deprivation, were perfectly healthy people who have not been cases of cognitive dysfunction or psychosis. They also have not had any ocular pathology. They were specially designed bandages, and in the course of the experiment specialists recorded their feelings on tape. Ten subjects (77%) reported visual hallucinations that were both simple (in the form of bright spots of light) and complex (decorative objects, landscapes). In most cases, hallucinations began at the end of the first day of visual deprivation. The subjects were aware that their vision is not real. This experiment clearly shows that rapid and complete visual deprivation is enough to cause visual hallucinations have absolutely healthy subjects ».
blockquote> One subject, a 29-year-old woman, saw a hallucination after 12 hours of deprivation. This happened at a time when she stood before the mirror. That's when she dreamed green face with huge eyes that really frightened her. Another 24-year-old woman reported that her hallucination was one and the same event. It seemed to her that she was asleep, waiting for her sister to come. When the sister finally came into the room, she noticed that her eyes instead of patches of light.
via factroom.ru