Research Library
About Our Research Library
Scroll below to view our research library, a searchable, comprehensive collection of published, peer-reviewed psychedelic research studies.
Our collection features impactful studies on a wide range of conditions and psychedelic substances to aid you on your unique health journey.
If you’d prefer one-on-one, direct support, please reach out to our Psychedelic Info Line for free answers to all your psychedelic questions.
Our Latest Published Research
Examining differences in the effects and contexts of naturalistic psilocybin use for White participants vs. participants of Color: A longitudinal online survey study
This study used data from a large, online longitudinal study of individuals who planned to engage in naturalistic psilocybin use. We used mixed-effects models to assess whether race/ethnicity (White vs. Participant of Color) moderated outcomes related to mental health.
Shame, guilt and psychedelic experience: Results from a prospective, longitudinal survey of real-world psilocybin use
The experience of self-conscious emotions with psychedelics has been explored minimally, but further study in this area may have far-reaching implications for psychological health. The activation of shame-related experiences with psychedelics may pose a unique and context-dependent learning condition for both therapeutic and detrimental forms of shame-related memory reconsolidation.
Long-term benefits to psychological health and well-being after ceremonial use of Ayahuasca in Middle Eastern and North African immigrants and refugees
Refugees and immigrants can experience complex stressors from the process of immigration that can have lasting and severe long-term mental health consequences. Experiences after ayahuasca ingestion are shown to produce positive effects on psychological wellbeing and mental health.
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Phenomenological assessment of psychedelics induced experiences: Translation and validation of the German Challenging Experience Questionnaire (CEQ) and Ego-Dissolution Inventory (EDI)
Abstract Several measures have been designed to assess subjective experiences induced by psychedelic substances or other mind-altering drugs as well as non-pharmacological methods. Recently, two self-report questionnaires have been introduced to measure acute adverse effects following psilocybin ingestion and the phenomenon of ego-dissolution associated with the use of psychedelics, respectively. The 26-item Challenging Experience […]
March 25, 2024
Validation of the Danish Translation of the Revised Mystical Experience Questionnaire (MEQ30) and Possible Impact of Setting, Dose and Intention
ABSTRACT Research suggests positive changes in both well-being and psychiatric symptoms following a psychedelic experience. One explanation may be the ability of psychedelic compounds to occasion mystical-type experiences. The Revised Mystical Experiences Questionnaire (MEQ30) is designed to assess the intensity and quality of such experiences. We examined the validity, reliability, and factor structure of […]
Validation of a French Version of the Mystical Experience Questionnaire with Retrospective Reports of the Most Significant Psychedelic Experience among French Users
ABSTRACT Mystical experiences triggered by psychedelic drugs predict symptom reduction in various psychiatric disorders, and increased well-being in healthy individuals. This work aimed at validating a French version of a tool used to measure mystical experiences: the Revised Mystical Experience Questionnaire-30 items (MEQ30). Construct validity, internal consistencies, concurrent, discriminant, and predictive validities of the […]
A Psychometric Evaluation of the Dutch Revised Mystical Experience Questionnaire
ABSTRACT In the Netherlands, scientific interest in psychedelics and their subjective effects has been increasing. The present study examined the reliability, construct and predictive validity of the Dutch 30- item Revised Mystical Experience Questionnaire (MEQ30), a self-report measure that has been used to assess subjective and mystical experiences occasioned by psychedelics. In an online […]
Development of the Japanese version of the Ego-Dissolution Inventory (EDI)
Abstract Aim: Psychedelics have recently gained attention as potential therapeutic agents for various psychiatric disorders. Previous research has highlighted that a diminished sense of self, commonly termed “ego-dissolution” is a pivotal feature of the psychedelic-induced state. While the Ego-Dissolution Inventory (EDI) is a widely acknowledged instrument for measuring this phenomenon, no Japanese version has […]
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