Brightness alteration

Brightness alteration is a distortion or change in the intensity of perceived brightness comprising a person's vision. This usually results in the person's vision becoming dimmer or darker,^[1]^[2]^[3] but could also potentially result in it becoming lighter and more vivid^[2]^[4] depending on the person's environment and substances they have consumed.

Brightness alteration can be accompanied by the coinciding effects of pupil dilation or constriction and photophobia. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

This effect seems to be mentioned within the following trip reports:

Vestiges of a Trip

on 05/2018 - nervewing

4-MeO-MiPT 40 mg Oral in solution

My skin didn't look like this before

on 23rd of October, 2020 - Natalie

4-AcO-DET 42 mg Oral

Nexuswalk - A beautiful mix of DXM and 2C-B

on 11/6/2022 - LeftoverNinja

DXM 150mg Freebase Oral
2C-B 10mg Oral

External Links

Adaptation (eye) (Wikipedia)

References

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), 562. | https://dx.doi.org/10.1093/schbul/3.4.560
[1][2] Fischer, R., Hill, R. M., & Warshay, D. (1969). Effects of the psychodysleptic drug psilocybin on visual perception. Changes in brightness preference. Experientia, 25(2), 166-169. | https://doi.org/10.1007/BF01899102
Abraham, H. D., & Wolf, E. (1988). Visual function in past users of LSD: Psychophysical findings. Journal of Abnormal Psychology, 97(4), 443. | http://dx.doi.org/10.1037/0021-843X.97.4.443
Baggott, M. J., Coyle, J. R., Erowid, E., Erowid, F., & Robertson, L. C. (2011). Abnormal visual experiences in individuals with histories of hallucinogen use: a Web-based questionnaire. Drug & Alcohol Dependence, 114(1), 63-64. | https://doi.org/10.1016/j.drugalcdep.2010.09.006