The Altered States Database: Psychometric data from a systematic literature review
Scientific Data January 1, 2022 Costines, Cyril, Derdiyok, Ekin, Dinkelacker, Jannis et al.
The Altered States Database (ASDB) is an open-science project that provides psychometric questionnaire data on subjective experiences of altered states of consciousness (ASC) induced by pharmacological and non-pharmacological methods. Developed through a systematic literature review following PRISMA guidelines, the database includes data from 165 journal articles identified via PubMed and Web of Science. It contains responses from validated questionnaires such as the APZ, 5D-ASC, 11-ASC, PCI, HRS, and MEQ30. The data is freely available on the Open Science Framework and the ASDB website, enabling calculation of comparable psychometric values and dose-response relationships for substances that induce ASC.