
Knowledge · Tool
Altered States Database
By Timo Torsten Schmidt, Tim Hirschfeld
The Altered States Database (ASDB) is an open-science project by CIRCE, providing access to scientific data on pharmacological and non-pharmacological methods for inducing altered states of consciousness. It includes only peer-reviewed psychometric data and is updated annually based on systematic literature reviews. The project aims to support research on human consciousness, particularly in the context of psychedelics in therapy, by enhancing data comparability and optimizing study designs.
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- 2020Where it sits among everything in the Knowledge Bank, by year
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About the tool

The Altered States Database (ASDB) is an open-science project managed by the scientific collaboration CIRCE that aims to facilitate access for researcher and laypersons to scientific data on various pharmacological and non-pharmacological induction methods for altered states of consciousness (ASCs).
This database only contains psychometric data published in peer-reviewed (quality controlled) scientific publications and is updated annually following a systematic literature review according to the PRISMA 2020 Statement Guidelines.
Our mission is to support rigorous research on human consciousness. As interest in psychedelics in therapy grows, we enhance data comparability by offering comparison data and optimizing study designs with suitable questionnaire tools.
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