20 studies whose primary subject is ayahuasca were published in 2005, up from 7 in 2004. Newest first. Back to the ayahuasca overview
CAMPOS - Revista de Antropologia Social December 31, 2005 Marcelo S. Mercante 23 citations
Resenha do livro A Reinvencao do Uso da Ayahuasca nos Centros Urbanos, de Beatriz Caiuby Labate, publlicado em 2004.
Archives of Clinical Psychiatry (São Paulo) December 1, 2005 Maria Carolina Meres Costa, Mariana Cecchetto Figueiredo, Sílvia de Oliveira Santos Cazenave 17 citations
O chá da Ayahuasca vem sendo utilizado milenarmente por índios da América do Sul,como instrumento espiritual e ritual, com extrema religiosidade. No século passado surgiram seitas não-indígenas, que passaram a fazer uso do chá. Essa utilização vem aumentando desde a liberação do uso da Ayahuasca para fins religiosos no Brasil. A ação do chá deve-se à presença de alcalóides nas plantas...
Discourse December 1, 2005 Richard Doyle 7 citations
Twenty minutes in, like clockwork, the visions begin. They are strong but I was expecting them this time. Norma, the vegetalista who so astonished me with her care, skill and knowledge during my first ceremony two nights prior, had packed a big bowl with a knot of the local Nicotina Rustica and had blown curling, whistling smoke over a plastic liter bottle filled with an opaque orangish liquid...
Journal of Psychoactive Drugs June 1, 2005 James C. Callaway, Glacus S. Brito, Edison S. Neves
A total of 32 Banisteriopsis caapi samples and 36 samples of Psychotria viridis were carefully collected from different plants on the same day from 22 sites throughout Brazil for phytochemical analyses. A broad range in alkaloid distribution was observed in both sample sets. All B. caapi samples had detectable amounts of harmine, harmaline and tetrahydroharmine (THH), while some samples of P....
Journal of Psychoactive Drugs June 1, 2005 James C. Callaway
Twenty nine decoctions of Banisteriopsis caapi from four different sources and one specimen of B. caapi paste were analyzed for N,N-dimethyltryptamine (DMT), tetrahydroharmine (THH), harmaline and harmine. Other plants were also used in the preparation of these products, typically Psychotria viridis, which provides DMT. There were considerable variations in alkaloid profiles, both within and...
Journal of Psychoactive Drugs June 1, 2005 Marlene Dobkin De Rios, Charles S. Grob 5 citations
A telephone interview was held in November of 2004 with Mr. Jeffrey Bronfman, representative mestre for the União do Vegetal Church in the United States, which utilizes ayahuasca as a religious sacrament. At the time of this writing, the U.S. Supreme Court has agreed to hear a case in which a large quantity of the ayahuasca tea was seized in the U.S. destined for sacramental use in church...
Journal of Psychoactive Drugs June 1, 2005 James C. Callaway 34 citations
Harmine, a major alkaloid in ayahuasca (hoasca), is a selective and reversible inhibitor of the enzyme monoamine oxidase-A (MAO-A). It is also a selective inhibitor of the human cytochrome P450 isozyme 2D6 (CYP 2D6), which metabolizes harmine to a more hydrophilic derivative for eventual excretion. CYP 2D6 exhibits a wide range of polymorphisms in human populations, and variations in this...
Journal of Psychoactive Drugs June 1, 2005 David E. Stuckey, Robert F. Lawson, Luís Eduardo Luna 43 citations
The current study examined QEEG power and coherence of ayahuasca experiences with two experienced participants in a Brazilian jungle setting. An exploratory case series design was adopted for naturalistic field research. EEGs recorded during visual imagery was compared to eyes-closed baselines. The most important findings were increases in global EEG coherence in the 36-44 Hz and 50-64 Hz...
Journal of Psychoactive Drugs June 1, 2005 Jordi Riba, Manel J. Barbanoj 58 citations
Since the winter of 1999, the authors and their research team have been conducting clinical studies involving the administration of ayahuasca to healthy volunteers. The rationale for conducting this kind of research is twofold. First, the growing interest of many individuals for traditional indigenous practices involving the ingestion of natural psychotropic drugs such as ayahuasca demands the...
Journal of Psychoactive Drugs June 1, 2005 Paulo César Ribeiro Barbosa, Joel Sales Giglio, Paulo Dalgalarrondo 121 citations
This report describes psychological assessments of the first time ritual use of ayahuasca in the religious groups União do Vegetal and Santo Daime. Nineteen subjects who tried the beverage in Santo Daime rituals and nine subjects who tried it in União do Vegetal rituals were evaluated one to four days before their first ayahuasca experience in life and one to two weeks after this experience....
Journal of Psychoactive Drugs June 1, 2005 Michael Winkelman 156 citations
This research addresses the question of whether Westerners who seek traditional spiritual medicine known as ayahuasca can be best characterized as "drug tourists" or as people pursuing spiritual and therapeutic opportunities. Participants in an ayahuasca retreat in Amazonia were interviewed regarding their motivations for participation and the benefits they felt that they received. These...
Journal of Psychoactive Drugs June 1, 2005 Marlene Dobkin De Rios, Charles S. Grob 22 citations
(2005). Editors' Introduction: Ayahuasca Use in Cross-Cultural Perspective. Journal of Psychoactive Drugs: Vol. 37, Ayahuasca Use In Cross-Cultural Perspective, pp. 119-121.
Journal of Psychoactive Drugs June 1, 2005 Evelyn Doering-Silveira, Enrique Lopez, Charles S. Grob et al. 70 citations
The purpose of the study was to evaluate neuropsychologically adolescents who use ayahuasca in a religious context. A battery of neuropsychological tests was administered to adolescents who use ayahuasca. These subjects were compared to a matched control group of adolescents who did not use ayahuasca. The controls were matched with regards to sex, age, and education. The neuropsychological...
Journal of Psychoactive Drugs June 1, 2005 Dartiu Xavier Da Silveira, Charles S. Grob, Marlene Dobkin De Rios et al. 111 citations
Ayahuasca is believed to be harmless for those (including adolescents) drinking it within a religious setting. Nevertheless controlled studies on the mental/ psychiatric status of ritual hallucinogenic ayahuasca concoction consumers are still lacking. In this study, 40 adolescents from a Brazilian ayahuasca sect were compared with 40 controls matched on sex, age, and educational background for...
Journal of Psychoactive Drugs June 1, 2005 Marlene Dobkin De Rios, Charles S. Grob, Enrique Lopez et al. 34 citations
Qualitative research was conducted in Brazil among 28 ayahuasca-consuming adolescents members of the União do Vegetal Church, and 28 adolescents who never used ayahuasca. They were compared on a number of qualitative variables, including vignettes measuring moral and ethical concerns. Psychocultural studies utilizing co-occurences of variables in the realm of qualitative studies are useful in...
Journal of Psychoactive Drugs June 1, 2005 Evelyn Doering-Silveira, Charles S. Grob, Marlene Dobkin De Rios et al. 122 citations
Ritual use of ayahuasca within the context of the Brazilian ayahuasca churches often starts during late childhood or early adolescence. Premature access to psychoactive drugs may represent a risk factor for drug misuse. Conversely, religious affiliation seems to play a protective role in terms of substance abuse. The objective of this study was to describe patterns of drug use in a sample of...
Journal of Psychoactive Drugs June 1, 2005 Dennis J. Mckenna 2 citations
In this essay, the author shares his personal reflections gleaned from a lifetime of research with ayahuasca, and speculates on the societal, political, planetary, and evolutionary implications of humanity's aeons-old symbiosis with this shamanic plant. The thesis is developed that at this critical historical juncture, ayahuasca has developed a strategy to broadcast its message to a wider...
International Journal of Transpersonal Studies 2005 Robert Tindall
Oh day and night,
Palgrave Macmillan US eBooks 2005 Stanley Krippner 2 citations
For several years, I have been interested in the Brazilian churches that use a particular mind-altering brew as a sacrament. This brew is referred to as "ayahuasca,""yage,""hoasca," etc., depending on the part of the country in which one encounters it. I am often invited to participate in evening ceremonies by the church elders, and one visit was especially memorable.
Journal of Analytical Toxicology 2005 Jason H Sklerov, Barry Levine, Karla A. Moore et al. 142 citations
A case of a 25-year-old white male who was found dead the morning after consuming herbal extracts containing beta-carbolines and hallucinogenic tryptamines is presented. No anatomic cause of death was found at autopsy. Toxicologic analysis of the heart blood identified N,N-dimethyltryptamine (0.02 mg/L), 5-methoxy-N,N-dimethyltryptamine (1.88 mg/L), tetrahydroharmine (0.38 mg/L), harmaline...