Titre : | Effects of the amazonian psychoactive beverage ayahuasca on binocular rivlary : interhemispheric switching or interhemispheric fusion ? |
Titre traduit : | (Effets de l'ayahuasca, boisson psychotrope amazonienne, sur la rivalité binoculaire : commutation ou fusion entre les deux hémisphères cérébraux ?) |
Auteurs : | FRECSKA E. ; K. D. WHITE ; LUNA L. E. |
Type de document : | Périodique |
Année de publication : | 2003 |
Format : | 367-374 / fig. |
Note générale : |
Journal of Psychoactive Drugs, 2003, 35, (3), 367-374 |
Langues: | Anglais |
Discipline : | PRO (Produits, mode d'action, méthode de dépistage / Substances, action mode, screening methods) |
Mots-clés : |
Thésaurus mots-clés AYAHUASCA ; CERVEAU ; VISION ; OEIL ; EFFET SECONDAIRE ; TROUBLES DE LA PERCEPTION |
Résumé : |
ENGLISH : An early theoretical analysis supposed changes in hemispheric integration as the basis of altered state of consciousness induced by psychoactive drugs. Brain imaging studies revealed right cortical activation after administration of hallucinogens. Recent studies on binocular rivalry suggest that interhemispheric switching is the neural substrate of the perceptual oscillations observed during dichoptic stimulus presentation. The current study tested perceptual alternation in ceremonial participants, who ingested the South American hallucinogenic beverage ayahuasca, to examine the claim that there might be changes in interhemispheric function under the influence of hallucinogens. Ingestion of ayahuasca resulted in a decrease of rivalry alternation rates, increased length of one percept and there was evidence of phenomenal fusion. The findings are in line with results of brain activation studies and support the concept of interhemispheric fusion in altered states of consciousness. (Editor's abstract.) |
Note de contenu : | fig. |
Domaine : | Drogues illicites / Illicit drugs |
Refs biblio. : | 46 |
Affiliation : |
MHC, 2717 NW 103 rd way, Gainesville, FL 32606 Etats-Unis. United States. |
Numéro Toxibase : | 102485 |
Centre Emetteur : | 01 Pey Berland |
Exemplaires
Disponibilité |
---|
aucun exemplaire |
Accueil