Evidence map›Paper›PMID 31061128›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Chemical evidence for the use of multiple psychotropic plants in a 1,000-year-old ritual bundle from South America.

Melanie J Miller, Juan Albarracin-Jordan, Christine Moore, José M Capriles

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
22.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 162 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Rapid and sustained antidepressant effects of vaporized N,N-dimethyltryptamine: a phase 2a clinical trial in treatment-resistant depression.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Trial
  4. A Phase 1 single ascending dose study of pure oral harmine in healthy volunteers.Journal of psychopharmacology (Oxford, England) · 2024
    Trial
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Psychoactive plants and secret rituals in ancient Peru.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Pre-Hispanic ritual use of psychoactive plants at Chavín de Huántar, Peru.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  13. Dated Phylogeny ofPlants (Basel, Switzerland) · 2025
    Article
  14. Article
  15. Traditional Indigenous-Amazonian Therapy Involving Ceremonial Tobacco Drinking as Medicine: A Transdisciplinary Multi-Epistemic Observational Study.Health education & behavior : the official publication of the Society for Public Health Education · 2024
    Observational
  16. Contemporary Uses of Vilca (Plants (Basel, Switzerland) · 2024
    Article
  17. Making Sense of Psychedelics in the CNS.The international journal of neuropsychopharmacology · 2024
    Article
  18. Review
  19. Article
  20. Ayahuasca: A review of historical, pharmacological, and therapeutic aspects.PCN reports : psychiatry and clinical neurosciences · 2023
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 3 countries.

Melanie J MillerDepartment of Anatomy, University of Otago, Dunedin 9016, New Zealand; melanie.miller@otago.ac.nz juc555@psu.edu.ORCID 0000-0002-7189-1109
Juan Albarracin-JordanInstituto de Investigaciones Antropológicas y Arqueológicas, Universidad Mayor de San Andrés, La Paz, Bolivia.
Christine MooreImmunalysis Corporation, Pomona, CA 91767.
José M CaprilesDepartment of Anthropology, The Pennsylvania State University, University Park, PA 16802 melanie.miller@otago.ac.nz juc555@psu.edu.ORCID 0000-0001-6046-0939
Pennsylvania State University · USPomona College · USUniversidad Mayor de San Andrés · BOUniversity of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Over several millennia, various native plant species in South America have been used for their healing and psychoactive properties. Chemical analysis of archaeological artifacts provides an opportunity to study the use of psychoactive plants in the past and to better understand ancient botanical knowledge systems. Liquid chromatography tandem mass spectrometry (LC-MS/MS) was used to analyze organic residues from a ritual bundle, radiocarbon dated to approximately 1,000 C.E., recovered from archaeological excavations in a rock shelter located in the Lípez Altiplano of southwestern Bolivia. The site is located at an elevation of ∼3,900 m above sea level and contains evidence of intermittent human occupations during the last 4,000 years. Chemical traces of bufotenine, dimethyltryptamine, harmine, and cocaine, including its degradation product benzoylecgonine, were identified, suggesting that at least three plants containing these compounds were part of the shamanic paraphernalia dating back 1,000 years ago, the largest number of compounds recovered from a single artifact from this area of the world, to date. This is also a documented case of a ritual bundle containing both harmine and dimethyltryptamine, the two primary ingredients of ayahuasca. The presence of multiple plants that come from disparate and distant ecological areas in South America suggests that hallucinogenic plants moved across significant distances and that an intricate botanical knowledge was intrinsic to pre-Columbian ritual practices.

Indexed as

ArchaeologyBanisteriopsisBoliviaGas Chromatography-Mass SpectrometryHallucinogensHumansPlants, MedicinalPsychotropic DrugsSouth AmericaTandem Mass SpectrometryHallucinogensPsychotropic Drugsarchaeometryexchangehallucinogenliquid chromatography mass spectrometryshamanism

Identifiers

PMID31061128
PMCPMC6561276
OpenAlexW2944337860

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.