External hallucinations

Deliriants by Anonymous /deli/ user - This image represents the sinister external hallucinations commonly induced by deliriants.

Deliriants by Anonymous /deli/ user - This image represents the sinister external hallucinations commonly induced by deliriants.

External hallucinations can be described as the experience of perceiving imagined visual concepts and occurrences which display themselves seamlessly into the external environment as if they were actually happening. This is in stark contrast to internal hallucinations such as dreams that exclusively occur within an imagined environment which can typically only be viewed with closed eyes.

The experience of this effect can be broken down into 4 basic levels of intensity. These are described and documented below:

  1. Erratic hallucinations - The lowest level of external hallucination generally consists of movement within the peripheral vision and ill-defined, fleeting hallucinations which disappear once a person double takes.
  2. Vaguely defined hallucinations - At this level, the hallucinations are visible within one's direct line of sight, but are not fully defined in their appearance. This means that, although visible, they do not look completely detailed and are often extremely blurry or semi-translucent with little, if any, color.
  3. Partially defined hallucinations - At this level, the hallucinations become distinct enough in their detail and vividness to extend beyond transparent, colorless, or blurry manifestations. However, they still remain unconvincing and do not quite live up to the detail of completely realistic and convincing hallucinations.
  4. Fully defined hallucinations - At this level, the hallucinations have become completely realistic, and will rarely disappear simply because a person double takes. They are now capable of a completely convincing and photo-realistic appearance.

It is worth noting that there are certain factors that directly alter both the likelihood of external hallucinations manifesting themselves and the level of detail which they are rendered in. For example, the more unfamiliar with the external environment one is, the more likely it is that this effect will manifest itself. Cluttered areas also tend to produce more external hallucinations. As far as lighting goes, either a dark or dim room is optimum. Darkness seems to produce significantly more hallucinations, while the light present in a dim room will result in less (although more detailed) hallucinations.

The content within these external hallucinations can be further broken down into four distinct subcomponents. These are described and documented within their own dedicated articles, each of which are listed below:


Style variations

  • Lucid vs. Delirious - Hallucinatory states can maintain a consistent level of awareness throughout them, regarding the fact that none of these events are really happening and that the current situation is simply a result of drug-induced hallucination. In contrast to this, hallucinations can also become completely believable, no matter how nonsensical they may be, in exactly the same way that we do not have any problem accepting absurd and non-linear plots within our dreams.
  • Interactive vs. Fixed – Hallucinatory states can either present themselves as completely separate in a manner that is similar to watching a video play out in front of one's field of vision or they can be completely interactive. For example, conversing with autonomous entities or interacting with imagined objects in a fashion similar to lucid dreaming is entirely possible.
  • New experiences vs. Memory replays – In terms of their subject matter, hallucinations can either be entirely new experiences or they can follow themes of normal, everyday concepts and a replaying of specific memories.
  • Controllable vs. Autonomous – Imagery and hallucinations can be partially to completely controllable. This can be described as the content of their appearance always seeming to perfectly follow and fit the general topic and subject matter of one's current thought stream, with varying levels of partial to absolute control. In contrast, autonomous hallucinations are completely spontaneous in their subject matter and entirely uncontrollable.
  • Geometry-based vs. Solid – Hallucinations can be comprised of condensed psychedelic geometry or they can appear to be made from realistic materials.

psychoactive substances

Compounds which may cause this effect commonly include:

1P-LSD, 25C-NBOMe, 25D-NBOMe, 2C-C, 2C-D, 2C-I, 2C-T-2, 4-AcO-DMT, 4-HO-MET, 6-APB, 6-APDB, AL-LAD, ALD-52, Ayahuasca, Benzydamine, DMT, DOB, DOC, DOI, Datura, DXM, DPH, ETH-LAD, Efavirenz, Escaline, Ketamine, LSD, MDA, MDMA, Mescaline, Methoxetamine, Mirtazapine, Nitrous, PCE, PCP, PRO-LAD, Psilocin, Psilocybin mushrooms, Zolpidem, Zopiclone


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Documentation written by Josie Kins