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Related Experiment Videos

Agreement and meaning: rethinking consensus analysis.

Daniel E Moerman1

  • 1University of Michigan-Dearborn, 6515 Cherry Hill Road Ypsilanti, MI 48198, USA. dmoerman@umich.edu

Journal of Ethnopharmacology
|May 26, 2007
PubMed
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This study critically examines informant agreement analysis in ethnobotany, proposing a new cultural perspective. It explores medicinal plant use consensus among North American indigenous peoples and the "meaning response" (placebo effect).

Area of Science:

  • Ethnobotany
  • Ethnopharmacology
  • Cultural Anthropology

Background:

  • Informant agreement (consensus) analysis is a key method in ethnobotany and ethnopharmacology.
  • Existing analyses often lack a higher cultural perspective.
  • Understanding traditional medicinal plant knowledge requires nuanced analytical frameworks.

Purpose of the Study:

  • To critically evaluate informant agreement analysis in ethnobotany and ethnopharmacology.
  • To propose a culturally-grounded framework for analyzing medicinal plant use.
  • To investigate the concept of "meaning response" (placebo effect) in traditional medicine.

Main Methods:

  • Cross-cultural analysis of reported medicinal plant uses among North American indigenous peoples.
  • Identification of plant use categories with high and low cultural agreement.

Related Experiment Videos

  • Theoretical development to explain efficacy of plants with low consensus.

    • Main Results:

    • Significant cross-cultural agreement exists for some medicinal plant use categories.
    • Other categories show a lack of consensus, suggesting alternative efficacy mechanisms.
    • The "meaning response" is proposed as a significant factor in plant efficacy.

    Conclusions:

    • Informant agreement analysis needs a broader cultural perspective.
    • The "meaning response" offers a theoretical approach to understanding plant efficacy beyond consensus.
    • This research reframes the understanding of traditional medicinal systems and placebo effects.