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.

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Substance Summaries

Hallucinogenic substance classes, broken down and described
For more, see the articles section.

Featured Article

Analyses that go beyond individual subjective effects

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.

For more, see the articles section.

Featured Reports

Recommended firsthand accounts of hallucinogenic experiences
4-HO-MET
60mg Oral
by Kaylee
DMT
50mg Smoked
DiPT
70 mg oral
by Kaylee
Combination
3-HO-PCP
10 mg Intranasal
Ayahuasca
2.5g Syrian Rue / 6g Mimosa hostilis rootbark Oral
4-HO-MET
100mg Oral
Combination
For more, see the reports section.