Articles
Published guides, scales, and long-form writing from the Effect Index archive.
Drug guides
Single-substance guides that walk the experience end to end.
- DMTInspired by the Shulgin Rating Scale, this article attempts to model the overall DMT experience as a systematic progression of stages and levels.May 2021 · 23 min read
- DXMThis article is part of an ongoing project to apply the subjective effect index to specific psychoactive substances in order to document…June 2021 · 20 min read
Intensity & rating scales
Level-by-level models of experience intensity, in the lineage of the Shulgin Rating Scale.
- Dissociative Intensity ScaleInspired by the Shulgin Rating Scale, this article attempts to model the overall dissociative experience as a systematic progression of six levels.April 2021 · 7 min read
- Psychedelic Intensity ScaleInspired by the Shulgin Rating Scale, this article attempts to model the overall psychedelic experience as a systematic progression of seven levels.April 2021 · 9 min read
- Approximate Frequency of Occurrence ScaleThis rating scale serves as a tool for providing approximations of the likelihood that a given subjective effect will occur.May 2021 · 1 min read
Dreaming & consciousness
Guides to dream states, lucidity, and the practices used to explore them.
- Lucid dreamingThis 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.March 2021 · 12 min read
- MeditationMeditation is a practice in which an individual trains the mind or induces a mode of consciousness, either to realize some benefit, allow…10 min read
- DreamsThis article attempts to comprehensively document the subjective effects that occur during dream states by breaking them down into their individual sub-components while providing detailed descriptions and leveling systems wherever possible.March 2021 · 10 min read
Reference & other writing
Short definitional pages and notes the rest of the archive refers back to.