For decades I have used a Integrating Stimulating Intensity Stroboscope [I.S.I.S.], said to have been invented in 1968 or 1969 by Jack Schwarz. It produces fascinating results! I often used it in the 1980s while taking 5 microgram doses of LSD. I start out seeing colors and geometric shapes, but as the speed of the flicker and the intensity of the light increase I see incredibly detailed images of MANY things like faces, trees, houses, cars, groups of people dressed in beautiful clothes, etc. When I have shared the ISIS device with other people, some report seeing things like what I see, others just see colors and geometric shapes, and some just see flashing lights and then what some people described to me as "random visual static". I have seen a few people have a strongly negative experience using the ISIS device. Interestingly, the people who absolutely did NOT like the images the device triggered were people who said they very much liked to take psychedelic drugs and see "hallucinations". (Perhaps they were like a dear friend who astounded me by saying that they had never seen any patterns or other type of pseudo-hallucination or hallucination or even any enhancement of color during the many high dose LSD experiences we shared over a period of years. They told me they had lied when they said they "saw things", basing their lies on what they had heard others describe...)
For decades I have used a Integrating Stimulating Intensity Stroboscope [I.S.I.S.], said to have been invented in 1968 or 1969 by Jack Schwarz. It produces fascinating results! I often used it in the 1980s while taking 5 microgram doses of LSD. I start out seeing colors and geometric shapes, but as the speed of the flicker and the intensity of the light increase I see incredibly detailed images of MANY things like faces, trees, houses, cars, groups of people dressed in beautiful clothes, etc. When I have shared the ISIS device with other people, some report seeing things like what I see, others just see colors and geometric shapes, and some just see flashing lights and then what some people described to me as "random visual static". I have seen a few people have a strongly negative experience using the ISIS device. Interestingly, the people who absolutely did NOT like the images the device triggered were people who said they very much liked to take psychedelic drugs and see "hallucinations". (Perhaps they were like a dear friend who astounded me by saying that they had never seen any patterns or other type of pseudo-hallucination or hallucination or even any enhancement of color during the many high dose LSD experiences we shared over a period of years. They told me they had lied when they said they "saw things", basing their lies on what they had heard others describe...)
Would it be interesting to use this process as a control for psychedelic meds or a comparator group.