Spatial disorientation

Spatial disorientation is the failure to perceive or perceiving incorrectly the position, motion, or altitude of oneself^[1] within the fixed coordinate system provided by the surface of the Earth and the gravitational vertical.^[2] In this state, a person may have trouble distinguishing up from down, right from left, or any two different directions from another. The person might also perceive the world or their own body as being flipped sideways or upside down.

Spatial disorientation is often accompanied by other coinciding effects such as holes, spaces and voids, changes in felt gravity^[3], and dizziness.^[4] It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as diphenidine,^[4] ketamine,^[5] and DXM.

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

The Expedition

on 22/02/2016 - nervewing

MXE 50mg Intranasal

A River of Gravel Drowning in my Mind

on 11/07/2016 - nervewing

Diphenidine 125 mg Oral

Encased in Stone

on 25/01/2016 - nervewing

DCK 50 mg Insufflated

External Links

References

Peters, R. A. (1969). Dynamics of the vestibular system and their relation to motion perception, spatial disorientation, and illusions. | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19690013275.pdf
Cheung, B. (2013). Spatial disorientation: more than just illusion. Aviation, space, and environmental medicine, 84(11), 1211-1214. | https://doi.org/10.3357%2FASEM.3657.2013
Espiard, M. L., Lecardeur, L., Abadie, P., Halbecq, I., & Dollfus, S. (2005). Hallucinogen persisting perception disorder after psilocybin consumption: a case study. European Psychiatry, 20(5-6), 458-460. | https://doi.org/10.1016%2Fj.eurpsy.2005.04.008
[1][2] Katselou, M., Papoutsis, I., Nikolaou, P., Misailidi, N., Spiliopoulou, C., & Athanaselis, S. (2018). Diphenidine: a dissociative NPS makes an entrance on the drug scene. Forensic Toxicology, 1-10. | https://doi.org/10.1007%2Fs11419-018-0421-1
Jansen, K. L. (1997). The ketamine model of the near-death experience: A central role for the N-methyl-D-aspartate receptor. Journal of Near-Death Studies, 16(1), 5-26. | https://doi.org/10.1023%2FA%3A1025067412205