The revival of the psychedelic experience scale: Revealing its extended-mystical, visual, and distressing experiential spectrum with LSD and psilocybin studies

Oct 31, 2023Journal of psychopharmacology (Oxford, England)

Expanding the psychedelic experience scale to include mystical feelings, visuals, and distress in LSD and psilocybin studies

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Abstract

Data from 239 measurements reveals a new validated structure for assessing psychedelic experiences.

  • Four original factors of the Mystical Experience Questionnaire (MEQ30) were confirmed as reliable.
  • New subscales for non-MEQ items were identified: , , visual experience, and distressing experience.
  • Paradoxicality and connectedness showed strong correlations with the MEQ30 mystical subscale.
  • The addition of the new subscales increased the explained variance with the 5-Dimensional Altered States of Consciousness Scale (5D-ASC).
  • A cluster analysis supported the main findings and provided insights for future psychedelic psychometrics.

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Key numbers

100
Total Items
Total number of items in the revised .
140
Participants
Number of healthy participants included in the analysis.
4
New Subscales
Number of new subscales added to the beyond the traditional mystical experience.

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