Depth perception distortions
Depth perception distortions are defined as alterations in how a person perceives the distance of various objects within their visual field. During this state, the various layers of scenery can become exaggerated, skewed, or completely rearranged. An example of this could be the swapping of layers in a given environment, in which objects in the background begin to appear as if they are in the foreground and objects in the foreground appear as if they are in the background. In other instances, the same distortion is applied to the entire visual field, such as everything appearing small and distant or large and near.
Another example of these distortions is the complete loss of depth perception. This occurs when the different sections of a scene appear to unify into a flat 2-dimensional image regardless of their actual distance from each other and the observer.
Depth perception distortions are often accompanied by other coinciding effects such as perspective distortions and drifting. They are most commonly induced under the influence of moderate dosages of psychedelic compounds, such as LSD, psilocybin, and mescaline.
Compounds within our psychoactive substance index which may cause this effect include:
- Amanita muscaria
- Psilocybin mushrooms
- Salvinorin A
Anecdotal reports which describe this effect within our experience index include:
- Experience:1000 Morning Glory seeds - Rediscovering the Self
- Experience:150mg MDMA + 20mg 2C-B - I designed it this way myself
- Experience:225ug LSD + 9g cubensis - Galactic Melt and the Meverse
- Experience:230ug of LSD- An amazing adventure by vikilikepsych
- Experience:250 seeds - Harsh body load
- Experience:3 Grams of Mushrooms - Reset on my Life, Experiencing Satori and the Cosmic Perspective
- Experience:300µg AL-LAD - Don't worry, because you're everyone!
- Experience:300µg LSD - Togetherness and the Silent Dusk
- Experience:30mg (smoked) DMT - The Monolith
- Experience:3g Syrian Rue + 5g Acacia Confusa - Life Changing Madness
- Experience:LSA (20 HWBR seeds) – A pleasant adventure with a harsh body load
- Experience:Mushrooms and Snuff Films -- Trip Report (3.5 grams)
- Experience:~150mg MDA(oral) - a case of mistaken identity
- Fischer, Roland; Hill, Richard; Thatcher, Karen; Scheib, James (1970). "Psilocybin-induced contraction of nearby visual space". Agents and Actions. 1 (4): 190–197. doi:10.1007/BF01965761. ISSN 0065-4299.
- Kleinman, J. E.; Gillin, J. C.; Wyatt, R. J. (1977). "A Comparison of the Phenomenology of Hallucinogens and Schizophrenia From Some Autobiographical Accounts*". Schizophrenia Bulletin. 3 (4): 560–586. doi:10.1093/schbul/3.4.560. ISSN 0586-7614.
- Marsh, A. (1979). "Visual Hallucinations During Hallucinogenic Experience and Schizophrenia". Schizophrenia Bulletin. 5 (4): 627–630. doi:10.1093/schbul/5.4.627. ISSN 0586-7614.
- Szara, S. The comparison of the psychotic effect of tryptamine derivatives with the effects of mescaline and LSD-25 in self-experiments. In: Garattini, S., and Ghetti, V., eds. Psychotropic Drugs. Amsterdam: Elsevier Publishing Company, 1957. pp. 460-467. https://www.erowid.org/references/texts/show/1667docid1552
- Hofmann, A. Psychotomimetic drugs, chemical and pharmacological aspects. Acta Physiologica Pharmacologica Neerlandica, 8:240-258, 1959. http://www.samorini.it/doc1/alt_aut/ek/hofmann-psychotomimetic-drugs.pdf
- Sechehaye, Marguerite; Rubin-Rabson, Grace (1951). "Autobiography of a schizophrenic girl: Reality lost and gained, with analytic interpretation". doi:10.1037/11511-000.