Effect Index, which is currently under construction, 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.
read more
About Us
Substance Summaries
Hallucinogenic substance classes, broken down and described
- Psychedelics: Visual, Cognitive, Miscellaneous
- Dissociatives
- Deliriants
For more, see the
articles section.
Featured Effects
A selection of subjective effects that best represent the SEI
Visual Effects
Autonomous entity ⋅ Colour shifting ⋅ Drifting ⋅ Environmental patterning ⋅ External hallucination ⋅ Geometry ⋅ Internal hallucination ⋅ Symmetrical texture repetition ⋅ Tracers ⋅ Visual disconnection
For more, see the
Subjective Effect Index.
Featured Article
Analyses that go beyond individual subjective effects
by Josie Kins
Thursday, April 22 2021
·
9 min read
Inspired by the Shulgin Rating Scale, this article attempts to model the overall dissociative experience as a systematic progression of six levels.
For more, see the
articles section.
Featured Reports
Recommended firsthand accounts of hallucinogenic experiences
by Kaylee
DMT
50mg Smoked
by nervewing
DiPT
70 mg oral
by Josie
Ayahuasca
2.5g Syrian Rue / 6g Mimosa hostillis Oral
by Cocoanatta
Combination
by nervewing
4-HO-MET
30 mg Oral in Gel Cap
by nervewing
MXPr
60mg Intranasal
by Sedric Lightbury
DPH
2000mg Oral
by Josie
Ayahuasca
2.5g Syrian Rue / 6g Mimosa hostilis rootbark Oral
For more, see the
reports section.