S & BIBLIOGRAPHIES Bibliography of Agriculture Biological Abstracts Botany Subject Index (U. S. Dept. of Agriculture) Chemical Abstracts Craker, L. E., A. F. Chadwick, & J. E. Simon. 1986. An introduction to the scientific literature on herbs, spices, and medicinal plants. Recent Adv. Bot. Hort. Pharm. 1: 1-9. Excerpta Botanica Index Medicus Index to American Botanical Literature Simon, J. E., A. F. Chadwick, & L. E. Craker. 1984. Herbs: an indexed bibliography, 1971-1980: the scientific literature on selected herbs, and aromatic and medicinal plants of the temperate zone. Shoe String Press. 770 pp.

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Plants & Civilization; An Introduction to the Interrelationships of Plants and People

Our experiences of dying have been shaped by ancient ideas about death and social responsibility at the end of life. From Stone Age ideas about dying as otherworld journey to the contemporary Cosmopolitan Age of dying in nursing homes, Allan Kellehear takes the reader on a 2 million year journey of discovery that covers the major challenges we will all eventually face: anticipating, preparing, taming and timing for our eventual deaths. This book, first published in 2007, is a major review of the human and clinical sciences literature about human dying conduct. The historical approach of this book places our recent images of cancer dying and medical care in broader historical, epidemiological and global context. Professor Kellehear argues that we are witnessing a rise in shameful forms of dying. It is not cancer, heart disease or medical science that presents modern dying conduct with its greatest moral tests, but rather poverty, ageing and social exclusion.

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A Social History of Dying

The ancient Maya and other Mesoamerican peoples showed an intense interest in invoking the senses, especially hearing, sight, and smell. The senses were flagged by graphic devices of synaesthetic or cross-sensory intent; writing and speech scrolls triggered sound, sightlines the acts and consequences of seeing, and flowery ornament indicated both scent and soul essence. As conceived anciently, the senses were projective and procreative, involving the notion of unity and shared essence in material and incorporeal realms. Among the Maya, spaces could be injected with moral and hierarchical valuation through visual fields known as y-ichnal. The inner mind extended to encompass outer worlds, in strong parallel to concepts of monism. From such evidence arises the possibility of reconstructing the phenomenology of ancient Mesoamericans.

An archaeology of the senses: perception and cultural expression in ancient mesoamerica

Healing should be understood as a process, comprised of stages to which are ascribed different meanings and for which the outcomes expected at each stage of prevention and therapy may vary from one medical system to another. Thus it follows that the efficacy of medical treatments can be properly evaluated only by multidimensional approaches that take into account this processual nature of healing, distinguish among emic and etic criteria that determine efficacy, and comprehend an interrelatedness among the biological and behavioral aspects of healing. The intent of this chapter is to demonstrate the implications of using such an approach, through review of recent literature in the areas of ethnopharmacology1 and cross-cultural studies in health care. Examples are drawn from the author’s research on Hausa (northern Nigerian) indigenous medicine (Etkin 1979, 1980, 1981; Etkin and Ross 1982, 1983) and from selected references.

Cultural Constructions of Efficacy

New World indigenous peoples are noted for their sophisticated use of psychedelic plants in shamanic and ethnomedical practices. The use of psychedelic plant preparations among New World tribes is far more prevalent than in the Old World. Yet, although these preparations are botanically diverse, almost all are chemically similar in that their active principles are tryptamine derivatives, either DMT or related constituents. Part 1 of this paper provides an ethnopharmacological overview of the major tryptamine-containing New World hallucinogens. Part 2 focuses on ayahuasca and its effects on the human brain. Using complementary neurophysiological and neuroimaging techniques, we have identified brain areas involved in the cognitive effects induced by this complex botanical preparation. Initial SPECT data showed that ayahuasca modulated activity in higher order association areas of the brain. Increased blood perfusion was observed mainly in anterior brain regions encompassing the frontomedial and anterior cingulate cortices of the frontal lobes, and in the medial regions of the temporal lobes. On the other hand, applying spectral analysis and source location techniques to cortical electrical signals, we found changes in neuronal activity that predominated in more posterior sensory-selective areas of the brain. Now, using functional connectivity analysis of brain oscillations we have been able to reconcile these seemingly contradictory findings. By measuring transfer entropy, a metric based on information theory, we have shown that ayahuasca temporarily modifies the ordinary flow of information within the brain. We propose a model in which ayahuasca reduces top-down constraints and facilitates bottom-up information transfer. By simultaneously enhancing endogenous cortical excitability and reducing higher-order cognitive control, ayahuasca temporarily disrupts neural hierarchies allowing inner exploration and a new outlook on reality.

New World Tryptamine Hallucinogens and the Neuroscience of Ayahuasca

Jaborandi: an interdisciplinary appraisal.

(1963). The use of parica, an ethnological and pharmacological review. Ethnos: Vol. 28, No. 1, pp. 5-45.

S. Henry Wassén

Papers

Jaborandi: an interdisciplinary appraisal.

The use of paricá, an ethnological and pharmacological review

Some general viewpoints in the study of native drugs especially from the West Indies and South America

On concepts of disease among Amerindian tribal groups.

Ritual enemas and snuffs in the Americas