نتایج جستجو برای: psychedelic

تعداد نتایج: 602  

2008
Siddhartha Gautama

Psychedelic drugs are agents that may assist a person in approaching existential issues. They enjoy a rich history in ancient, non-Western cultures and, more recently, in psychiatric research of the 1960s. After a 40-year hiatus, international trials are now underway to revisit the role of psychedelic drugs in assisting patients with terminal cancer to explore – and resolve – anxiety-inducing e...

Journal: :Lancet 2012
Ben Sessa

Psychedelic drugs have a rich and vibrant history as clinical aids for psychiatry. For two decades after the discovery of lysergide (LSD) in the 1940s, psychedelics were extensively studied and clinical progress was good. But research collapsed rapidly in 1966 when LSD was made illegal, and there was a subsequent hiatus of psychedelic research. After 40 years, this pause is now coming to an end...

2016
Matthew M. Nour Lisa Evans David Nutt Robin L. Carhart-Harris

AIMS The experience of a compromised sense of "self", termed ego-dissolution, is a key feature of the psychedelic experience. This study aimed to validate the Ego-Dissolution Inventory (EDI), a new 8-item self-report scale designed to measure ego-dissolution. Additionally, we aimed to investigate the specificity of the relationship between psychedelics and ego-dissolution. METHOD Sixteen item...

Journal: :International review of neurobiology 2016
L F Tófoli D B de Araujo

Despite reports of apparent benefits, social and political pressure beginning in the late 1960s effectively banned scientific inquiry into psychedelic substances. Covert examination of psychedelics persisted through the 1990s; the turn of the century and especially the past 10 years, however, has seen a resurgent interest in psychedelic substances (eg, LSD, ayahuasca, psilocybin). This chapter ...

ژورنال: پژوهش در پزشکی 2008
بروجردی, اشرف, حمدیه, مصطفی, عاشری, حسین, مطلبی, نبی,

Background and Aim: This study was conducted in the first 6 months of the year 2005, to define the prevalence of alcohol, psychostimulant, and psychedelic drug abuse in teenagers and adults ranging 15 to 35 years old living in Tehran. Materials and Methods: This is a cross-sectional analysis and the study population encompassed persons aged 15 to 35 years living in Tehran. The study was perfor...

2017
Elena Argento Steffanie A Strathdee Kenneth Tupper Melissa Braschel Evan Wood Kate Shannon

OBJECTIVE This study aimed to longitudinally investigate whether ever having used a psychedelic drug can have a protective effect on incidence of suicidality among marginalised women. DESIGN Longitudinal community-based cohort study. SETTING Data were drawn from a prospective, community-based cohort of marginalised women in Metro Vancouver, Canada. PARTICIPANTS 766 women completed the bas...

2010
Thomas S. Ray

We currently understand the mental effects of psychedelics to be caused by agonism or partial agonism of 5-HT(2A) (and possibly 5-HT(2C)) receptors, and we understand that psychedelic drugs, especially phenylalkylamines, are fairly selective for these two receptors. This manuscript is a reference work on the receptor affinity pharmacology of psychedelic drugs. New data is presented on the affin...

Journal: :Journal of psychoactive drugs 2011
Levente Móró Katalin Simon Imre Bárd József Rácz

Psychoactive drug use shows great diversity, but due to a disproportionate focus on problematic drug use, predominant nonproblematic drug use remains an understudied phenomenon. Historic and anecdotal evidence shows that natural sources of "psychedelic" drugs (e.g., mescaline and psilocybin) have been used in religious and spiritual settings for centuries, as well as for psychological self-enha...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Robin L Carhart-Harris David Erritzoe Tim Williams James M Stone Laurence J Reed Alessandro Colasanti Robin J Tyacke Robert Leech Andrea L Malizia Kevin Murphy Peter Hobden John Evans Amanda Feilding Richard G Wise David J Nutt

Psychedelic drugs have a long history of use in healing ceremonies, but despite renewed interest in their therapeutic potential, we continue to know very little about how they work in the brain. Here we used psilocybin, a classic psychedelic found in magic mushrooms, and a task-free functional MRI (fMRI) protocol designed to capture the transition from normal waking consciousness to the psyched...

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