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

Thank you Emergence Benefactors!

Emergence Benefactors logo
Thank you to our wonderful sponsor, Emergence Benefactors

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
by nervewing
Memantine
150 mg Oral
by nervewing
MXPr
60mg Intranasal
by nervewing
MXE
50mg Intranasal
LSD
4 tabs Oral
Ayahuasca
2.5g Syrian Rue / 6g Mimosa hostillis Oral
Combination
4-HO-MET
100mg Oral
Ayahuasca
2.5g Syrian Rue / 6g Mimosa hostilis rootbark Oral
For more, see the reports section.