Results 81 to 90 of about 4,502 (185)

Encyclopedia of psychopharmacology [PDF]

, 2013
Definition of microiontophoresis and related methods as found in the Encyclopedia of Psychopharmacology.peer ...
BS Bunney, DR Curtis, DR Curtis, DR Curtis, DW Gallager, G Giovanni Di, GK Aghajanian, J Castillo del, RW Invernizzi, TP Hicks, WL Nastuk   +10 more
core   +1 more source

Structural characterization and comparative analysis of polymorphic forms of psilocin (4-hydroxy-N,N-dimethyltryptamine)

Acta Crystallographica Section E: Crystallographic Communications
The title compound, C12H16N2O, is a hydroxy-substituted monoamine alkaloid, and the primary metabolite of the naturally occurring psychedelic compound psilocybin.
Matthias Zeller, Stephan Parent, Nate Schultheiss   +2 more
doaj   +1 more source

Seasonal Effect on the Chemical Composition of Mimosa tenuiflora (Willd.) Poir Stem Bark from the Semi‐Arid Region of Pernambuco, Brazil

Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.
Investigation of the seasonal influence of environmental factors on the production of secondary metabolites in Mimosa tenuiflora stem bark by Principal Component Analysis (PCA). ABSTRACT Mimosa tenuiflora (Willd.) Poir., known as “Jurema‐preta”, is a species of ethnobotanical relevance, used in traditional medicine.
Nathália Andrezza Carvalho de Souza, Pedro Guilherme Sousa de Sá, Tarcísio Cícero de Lima Araújo, Victória Laysna dos Anjos Santos, Guilherme Urias Menezes Novaes, Emerson de Oliveira Silva, Heberte Fernandes de Figueredo, Raimundo Gonçalves de Oliveira‐Júnior, Raphaël Grougnet, Larissa Araújo Rolim   +9 more
wiley   +1 more source

The void and the brain

Cell Reports
Blackburne et al. track the electroencephalogram activity of volunteers inhaling a high dose of the powerful psychedelic 5-methoxy-N,N-dimethyltryptamine, revealing profoundly slowed-down brain activity but no significant reduction of alpha band power ...
Christof Koch
doaj   +1 more source

Resilience and Brain Changes in Long‐Term Ayahuasca Users: Insights From Psychometric and fMRI Pattern Recognition

Journal of Magnetic Resonance Imaging, Volume 62, Issue 6, Page 1782-1790, December 2025.
ABSTRACT Background Ayahuasca is an Amazonian psychedelic brew that contains dimethyltryptamine (DMT) and beta carbolines. Prolonged use has shown changes in cognitive‐behavioral tasks, and in humans, there is evidence of changes in cortical thickness and an increase in neuroplasticity factors that could lead to modifications in functional neural ...
Lucas Rego Ramos, Orlando Fernandes Jr, Tiago Arruda Sanchez   +2 more
wiley   +1 more source

Self‐treatment with psychedelic substances for health and wellbeing in Aotearoa New Zealand: an exploratory descriptive study

Kōtuitui: New Zealand Journal of Social Sciences Online, Volume 20, Issue 4, Page 937-958, December 2025.
ABSTRACT This study draws attention to, and provides a description of, a previously unmapped and emerging self‐medication phenomenon occurring in Aotearoa New Zealand where psychedelic substances are being used in the absence of clinical supervision to address a wide range of health and wellbeing issues, partly in response to unmet mental health needs.
Chris Arnison, Richard Egan, John H. Shaver   +2 more
wiley   +1 more source

Psychotria viridis: Chemical constituents from leaves and biological properties

Anais da Academia Brasileira de Ciências
The phytochemical study of hexane, chloroform and methanol extracts from leaves of Psychotria viridis resulted in the identification of: the pentacyclic triterpenes, ursolic and oleanolic acid; the steroids, 24-methylene-cycloartanol, stigmasterol and β ...
DÉBORA B.S. SOARES, LUCIENIR P. DUARTE, ANDRÉ D. CAVALCANTI, FERNANDO C. SILVA, ARIADNE D. BRAGA, MIRIAM T.P. LOPES, JACQUELINE A. TAKAHASHI, SIDNEY A. VIEIRA-FILHO   +7 more
doaj   +1 more source

Modern Clinical Research on LSD [PDF]

, 2017
All modern clinical studies using the classic hallucinogen lysergic acid diethylamide (LSD) in healthy subjects or patients in the last 25 years are reviewed herein. There were five recent studies in healthy participants and one in patients.
A Garcia-Romeu, A Rickli, A Rickli, AB Wolbach Jr, AL Halberstadt, AL Halberstadt, Andrea E. Steuer, AV Lebedev, CM Hysek, CM Hysek, CS Grob, D Holland, D Marona-Lewicka, D Nutt, DB Terhune, DE Nichols, DE Nichols, DE Nichols, DV Sheehan, E Gouzoulis-Mayfrank, E Studerus, E Tagliazucchi, EA Schindler, F Hasler, F Mueller, FL Osorio, FX Vollenweider, FX Vollenweider, J Riba, J Seibert, J Speth, JC Bouso, JH Halpern, JJ Rucker, KA MacLean, KH Preller, KH Preller, KH Preller, KPC Kuypers, L Roseman, L Roseman, LD Simmler, LE Hollister, M Johnson, M Kaelen, M Kaelen, M Kometer, M Kometer, MA Geyer, Matthias E Liechti, ME Liechti, MJ Baggott, MP Bogenschutz, MW Johnson, P Gasser, P Gasser, P Strajhar, Patrick C. Dolder, PC Dolder, PC Dolder, PC Dolder, PS Hendricks, R Kraehenmann, Rainer Kraehenmann, RE Belleville, RG Dos Santos, RJ Strassman, RJ Strassman, RL Carhart-Harris, RL Carhart-Harris, RL Carhart-Harris, RL Carhart-Harris, RL Carhart-Harris, RL Carhart-Harris, RL Carhart-Harris, RR Griffiths, RR Griffiths, S Ross, SD Muthukumaraswamy, T Passie, TS Krebs, TS Krebs, WE Fantegrossi, WN Pahnke, WN Pahnke, Y Schmid   +85 more
core   +1 more source

Psilocybin links binocular rivalry switch rate to attention and subjective arousal levels in humans [PDF]

, 2018
Rationale: Binocular rivalry occurs when different images are simultaneously presented to each eye. During continual viewing of this stimulus, the observer will experience repeated switches between visual awareness of the two images.
Carter, Olivia, Hasler, Felix, Liu, Guang, Pettigrew, John, Vollenweider, Franz, Wallis, Guy   +5 more
core  

Infrared and Raman screening of seized novel psychoactive substances:a large scale study of >200 samples [PDF]

, 2016
The potential of IR absorption and Raman spectroscopy for rapid identification of novel psychoactive sub- stances (NPS) has been tested using a set of 221 unsorted seized samples suspected of containing NPS.
Bell, Steven E. J., Fletcher, Nicholas Charles, Jones, Louise E., McNaul, M., Peters, K. Laota, Speers, S. James, Stewart, A.   +6 more
core   +1 more source