Effect Index
Effect Index, is a resource dedicated to establishing the field of formalised subjective effect documentation. It is the home of the Subjective Effect Index (SEI), which contains 233 effect descriptions that exist to serve as a comprehensive map of all potential experiences that can occur under the influence of any class of psychoactive compound, particularly hallucinogens.
The effects identified here are accompanied by detailed descriptions of how it feels to experience them. These are written in an objective and consistent writing style based upon phenomenological observation and avoids the use of metaphor or analogy. The descriptions also strive to use language that is as simple and understandable as possible. This has been done with the hope that they will serve as a universal terminology that allows people to describe and discuss that which was previously considered ineffable.
These effects are organised into categories based on the sense affected and their behaviour. Many of these are further broken down into levels, subcomponents, and variations in style, which can occur across different substances. Detailed replications are included whenever possible to supplement the text descriptions in the form of images, audio clips, and animations.
Thank you Emergence Benefactors!
Substance Summaries
Hallucinogenic substance classes, broken down and described
- Psychedelics: Visual, Cognitive, Miscellaneous
- Dissociatives
- Deliriants
Featured Effects
A selection of subjective effects that best represent the SEI
Visual Effects
Autonomous entityColour shiftingDriftingEnvironmental patterningExternal hallucinationGeometryInternal hallucinationSymmetrical texture repetitionTracersVisual disconnection
Featured Article
Analyses that go beyond individual subjective effects
Saturday, March 20 2021 · 12 min read
This article focuses on serving as an informational guide for learning to consistently gain a stable sense of lucidity within one's own dreams, as well as the instructional techniques for utilizing and harnessing further control of the dream once this has been achieved.
Featured Replications
Artistic representations of specific subjective effects
A replication of Recursion
by StingrayZ
Featured Reports
Recommended firsthand accounts of hallucinogenic experiences
by nervewing
Memantine
150 mg Oral
by nervewing
4-HO-MET
30 mg Oral in Gel Cap
by Gregasaurus
LSD
4 tabs Oral
A tall humanoid figure wearing a white cloak
by Anonymous
Salvia divinorum
2 bowls of 20x extract Smoked
by nervewing
3-HO-PCP
10 mg Intranasal
by nervewing
DiPT
70 mg oral
by Cocoanatta
Combination
by Anonymous
2C-E
25mg Oral
