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===Stroboscopics=== | ===Stroboscopics=== | ||
A bright light which flashes at the same speed as the transmission rate of the optical nerve can induce visual hallucinations similar to effects induced by psychedelic substances<ref>'''Altered states phenomena induced by visual flicker light stimulation'''. Marie Therese Bartossek, Johanna Kemmerer, Timo Torsten Schmidt. Published: July 1, 2021. <nowiki>https://doi.org/10.1371/journal.pone.0253779</nowiki></ref>. Whilst the visual aspects of the psychedelic experience can be replicated, there is no evidence to suggest any other neurological effect occurs. Anyone can perform this at home using [https://burnzero.com/Setting#:~:text=an%20individual%20basis.-,Psychedelic,-Visualisation%20Modulators Psychedelic Visualisation Modulators], the strongest of which is a [https://strobe.cool/ stroboscopic]. Many of these techniques are thought to work by replicating the speed of specific brain wave patterns. It is thought that low hallucination-inducing frequencies (8 to 11 Hz) and high hallucination-inducing frequencies (19 to 25 Hz)<ref>'''''The hodology of hallucinations'''. FFYTCHE, D. (2008). Cortex, 44(8), 1067–1083.'' doi:10.1016/j.cortex.2008.04.005. Accessed on 17th September 2022 via: https://pubmed.ncbi.nlm.nih.gov/18586234/ </ref>. | |||
=== Optical Illusions === | === Optical Illusions === |