Blossom Pulse Archive

What happened in psychedelic research in 1991

1 event from 1991, dated by when they happened rather than when we logged them. Papers as they published, trials starting and finishing, programme milestones, and the news coverage around them, grouped by week.

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Week of 31 December 1990

  • This methodological critique and long-term, between-subjects, follow-up study (n=16) challenges how the mystical experiences occasioned by psilocybin were measured during Walter Pahnke's infamous 'Good Friday experiment' (1963) on the basis of its imprecise questionnaire assessment and unsuccessful placebo blinding. However, all psilocybin subjects participating in the long-term follow-up, but none of the controls, still considered their original experience to have had genuinely mystical elements and to have made a uniquely valuable contribution to their spiritual lives even 27 years after.

    PsilocybinSafety & Risk Management

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Showing 1 of 1 in 1991