Replication and extension of a model predicting response to psilocybin

Area of Science:

• Psychopharmacology
• Neuroscience
• Mental Health Research

Background:

• Psychedelic drugs show promise for treating depression and anxiety.
• Individual responses to psychedelics vary based on traits, setting, and mental state.
• Previous models inadequately explained response variations, but recent studies highlight the impact of surrender and preoccupation.

Purpose of the Study:

• To replicate and extend a model predicting psilocybin experience variability.
• To investigate the influence of mental states (surrender, preoccupation) on psilocybin outcomes.
• To examine the role of mystical experiences in facilitating positive long-term change.

Main Methods:

• Hierarchical regression analysis of crowdsourced retrospective data from 183 psilocybin users.
• Exploration of mental states before, during, and after psilocybin ingestion using memory prompts.
• Non-controlled drug administration in a real-world setting.

Main Results:

• Replication of previous findings: surrender predicted optimal experiences, preoccupation predicted adverse experiences.
• Inclusion of additional predictors enhanced the model's explanatory power for both optimal and adverse outcomes.
• Mystical experiences were found to be significant predictors of long-term positive change.

Conclusions:

• Pre-ingestion mental states of surrender and preoccupation significantly predict psilocybin experience quality.
• Mystical experiences correlate with sustained positive psychological transformation.
• Identifying and cultivating a preparatory state of surrender may enhance therapeutic psilocybin use.