Persisting Effects Questionnaire

The Persisting Effects Questionnaire (PEQ) is a 143-item self-report measure that assesses changes in peoples attitudes, moods, behaviour and spiritual experience at least one month following a psychedelic experience. The PEQ assesses both positive and negative changes attributed to the experience.

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Alternative name
PEQ

Active? Yes

First used: 01 January 1970

Related Papers

Persisting effects of ayahuasca on empathy, creative thinking, decentering, personality, and well-being
This provisionally accepted study (n=40) explored the effects of ayahuasca on processes involved in stress-related psychopathologies. Volunteers attending an ayahuasca ceremony were given a series of questionnaires at baseline, the morning after and one week after the experience. Researchers found ingesting ayahuasca is associated with positive therapeutic outcomes.

The phenomenology of psilocybin's experience mediates subsequent persistent psychological effects independently of sex, previous experience, or setting
This double-blind, placebo-controlled, cross-over study (n=40) found that two doses of psilocybin (18.2mg/70kg) administered at least 56 days apart (avg. 15 months) produced positive lasting effects in healthy individuals regardless of previous psychedelic experience, sex, or setting, with challenging experiences in controlled environments not causing adverse outcomes, supporting psilocybin's psychological safety for repeated use.