Behavioural Pharmacology
June 1, 2019
Susan Schenk, Quenten Highgate
2 citations
Most studies on discriminative stimulus effects of 3,4-methylenedioxymethamphetamine (MDMA) have been conducted using a relatively low dose (1.5 mg/kg), and those studies have invariably implicated serotonergic mechanisms. In contrast, dopaminergic mechanisms mediate the discriminative stimulus effects of amphetamine (AMPH). Some studies have suggested that the discriminative stimulus effects...
Interdisciplinaria Revista de Psicología y Ciencias Afines
June 1, 2019
Ismael Apud
6 citations
La ayahuasca es una sustancia psicoactiva de origen amazónico, usada tradicionalmente con fines espirituales, médicos y religiosos. En la década de los ‘90 adquiere gran popularidad, tanto a través de las redes internacionales de espiritualidad y religiosidad, como en el denominado renacimiento de los estudios psicodélicos, donde se retoma la investigación y experimentación sobre los posibles...
Biological Psychiatry
May 30, 2019
Gunes Sevinc, Britta K. Hölzel, Jonathan Greenberg et al.
Background: The role of hippocampus in context-dependent recall of extinction is well recognized. However, little is known about how intervention-induced changes in hippocampal networks relate to improvements in extinction learning. In this study, we hypothesized that mindfulness training creates an optimal exposure condition by heightening attention and awareness of present moment sensory...
Natural Products and Bioprospecting
May 27, 2019
Edgar Antonio Estrella-Parra, Julio Cesar Almanza-Pérez, Francisco Javier Alarcón-aguilar
57 citations
Ayahuasca (caapi, yajé), is a psychoactive brew from the Amazon Basin region of South America traditionally considered a "master plant." It is prepared as a decoction from Banisteriopsis caapi and Psychotria viridis, which it is thought that it stimulates creative thinking and visual creativity. Native healers of the Orinoco and Amazon basins have used traditionally ayahuasca as a healing tool...
International Journal of Drug Policy
May 25, 2019
John Gardner, Adrian Carter, Kerry O’Brien et al.
23 citations
Recent clinical studies illustrate that psychedelics such as LSD and psilocybin may represent much-needed new treatment options for mood disorders and alcohol and other drug use disorders. More clinical studies are required to confirm the safety and efficacy of psychedelic-assisted therapies, but the cultural stigma that has surrounded psychedelics since the 1960s has hindered research. This...
Frontiers in Psychology
May 24, 2019
Alejandra Vasquez-Rosati, Rodrigo Montefusco-Siegmund, Vladimir Lopez et al.
Imagine a scenario where you are cooking and suddenly, the contents of the pot start to come out, and the oven bell rings. You would have to stop what you are doing and start responding to the changing demands, switching between different objects, operations and mental sets. This ability is known as cognitive flexibility. Now, add to this scenario a strong emotional atmosphere that invades you...
ACS Chemical Neuroscience
May 15, 2019
Samuel D Banister, Jonathon C Arnold, Mark Connor et al.
Cannabis ( Cannabis sativa) is the most widely used illicit drug in the world, with an estimated 192 million users globally. The main psychoactive component of cannabis is (-)- trans-Δ9-tetrahydrocannabinol (Δ9-THC), a compound with a diverse range of pharmacological actions. The unique and distinctive intoxication caused by Δ9-THC primarily reflects partial agonist action at central...
Journal of Psychopharmacology
May 14, 2019
Albert Garcia‐romeu, Alan K. Davis, Fire Erowid et al.
286 citations
Background: Meta-analysis of randomized studies using lysergic acid diethylamide (LSD) for alcohol use disorder (AUD) showed large, significant effects for LSD efficacy compared to control conditions. Clinical studies suggest potential anti-addiction effects of LSD and mechanistically-related classic psychedelics for alcohol and other substance use disorders. Aims: To supplement clinical...
Drug Testing and Analysis
May 13, 2019
Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al.
72 citations
Abstract The psychedelic properties of lysergic acid diethylamide (LSD) have captured the imagination of researchers for many years and its rediscovery as an important research tool is evidenced by its clinical use within neuroscientific and therapeutic settings. At the same time, a number of novel LSD analogs have recently emerged as recreational drugs, which makes it necessary to study their...
Frontiers in Neurology
May 9, 2019
Tirza Naarden, Bastiaan C. Ter Meulen, Sarah I Van der Weele et al.
Background: Alice in Wonderland syndrome (AIWS) is a rare neurological disorder characterized by distortions of visual perception (metamorphopsias), the body image, and the experience of time, along with derealization and depersonalization. Some 85% of patients present with perceptual distortions in a single sensory modality, e.g., only visual or only somesthetic in nature. Moreover, the...