Dartiu Xavier da Silveira

• Abstract

  Ayahuasca, Daime, Vegetal, Hoasca or Yajé (Yagé) are some of the many names attributed, by different cultures, to a plant decoction from the Amazon (made mainly with Psychotria viridis e Banisteriopsis caapi). The brew contains N,N-Dimethyltriptamine and also beta carbolines like harmine, harmaline and tetrahydroharmine, currently used by many Brazilian communities, mainly the Santo Daime…

  Neurophysiological assessment of ayahuasca's effects in humans, AP.R

• Abstract

  Substance dependence is a chronic disease with great impact in public health. High comorbidity with other medical conditions leads to worse the prognosis making the treatment of the addictive disorder even more difficult. Although there is a considerable amount of knowledge on the neurobiological mechanisms involved in the disorders separately, the intrinsic mechanisms of the associated c…

  Neurochemical and behavioral study on the relationship between depression and alcohol and cocaine dependence in mice: influence of the cannabinoid system, AP.R

• Abstract

  Role Playing Game (RPG) can be defined as a group gambling activity characterized by the verbal dramatizing of a fictitious character. This study aims to investigate if the RPG player has a risky behavior for pathological gambling and related psychiatric conditions. Furthermore, assuming a potential risk for mental problems, it will be necessary to define limits between normal playing and…

  Role Playing Game: profile of the RPG player, AP.R

(Only some records are available in English at this moment)

• Abstract

  Ayahuasca (Santo Daime, Daime, Vegetal, Hoasca, Yagé or Yajé) is a tea made from amazonian plants (Psychotria viridis and Banisteriopsis caapi) containing dimethyltryptamine, or DMT (5HT-2A agonist and endogenous ligand of the sigma-1 receptor) containing also harmine and harmaline (among other MAO-A inhibitor molecules), presently used by diverse communities in Brazil and abroad. When in…

  Evaluation of the electrophysiological alterations on healthy subjects EEG during the effect of ayahuasca, BP.PD
• Neurochemical and behavioral study of the relationship between depression and addiction to ethanol in mice: influence of the endocannabinoid system, BP.MS
• Role Playing Game: an investigation of the characteristics of the RPG player, BP.IC

• Abstract

  Ayahuasca is a decoction prepared with P. viridis and B. caapi, containing N,N-Dimethyltryptamine (DMT), harmine, tetrahydroharmine and harmaline. It's currently used by Brazilian communities, mainly the Santo Daime and União do Vegetal (UDV) churches, that also have international branches. After ingestion, the brew elicits somatic, emotional and sensorial perceptual alterations.Our curre…

  Statistical analysis of electrophysiological signals from the human brain during the effects of ayahuasca, BE.EP.PD