In the effort to better relate neuronal mechanisms to states of mind, it makes sense to have - in addition to pharmacological classifications of drugs and imaging/physiology classifications of their effects - classifications of the states of mind they evoke, according to introspective reports.
I have been unable to find such a data-driven classification in the literature (I would imagine a cluster analysis of reported terms, or a factor analysis of ratings on statements could be appropriate). Instead, "subjective effects" classification seems to be restricted to single-substance profiling, and elsewise is remarkably top-down - based on ad hoc models by the same authoritative people or entities which commonly make psychoactive substances available to consumers (introducing confirmation bais). I'm wondering if there's anything else out there?