Journal of Psychedelic Studies
November 9, 2018
Tom Wolff, Torsten Passie
10 citations
The international distribution and commodification of ayahuasca has created virtual communicative realms in the Internet in which members intensively exchange personal narratives, advertisements, and beliefs about ayahuasca and its reputed native background. Common consumption standards and beliefs about ayahuasca have developed among western ayahuasca drinkers who are often only loosely...
Drug Science Policy and Law
2018
Torsten Passie
115 citations
3,4-Methylenedioxymethamphetamine (MDMA), also known as ecstasy, was first synthesized in 1912 but first reached widespread popularity as a legal alternative after the much sought-after recreational drug 3,4-methylenedioxy-amphetamine (MDA) was made illegal in 1970. Because of its benign, feeling-enhancing, and nonhallucinatory properties, MDMA was used by a few dozen psychotherapists in the...
Handbook of experimental pharmacology
2018
Torsten Passie, Simon D. Brandt
The purpose of this chapter is to highlight the rich tradition of self-experiments (SEs) with psychoactive substances carried out by scientists and therapists for more than a century. Scientifically inspired controlled SEs dominated until the end of the twentieth century, when ethical requirements minimized controlled SEs and "wild" SEs expanded particularly with the emergence of new...
Drug Testing and Analysis
August 29, 2017
Torsten Passie, Udo Benzenhöfer
43 citations
Abstract This article describes the context in which 3,4‐methylenedioxyamphetamine (MDA), 3,4‐methylenedioxymethamphetamine (MDMA) and other mescaline‐like compounds were explored as hallucinogens for military and intelligence purposes from the 1940s to the 1960s. Germans first tested mescaline as a “truth drug” in a military context. In the 1940s, the United States military started testing...
Journal of Psychoactive Drugs
March 3, 2016
Torsten Passie, Udo Benzenhöfer
56 citations
MDMA (3,4-methylenedioxy-methylamphetamine, a.k.a. "ecstasy") was first synthesized in 1912 and resynthesized more than once for pharmaceutical reasons before it became a popular recreational drug. Partially based on previously overlooked U.S. government documentation, this article reconstructs the early history of MDMA as a recreational drug in the U.S. from 1960 to 1979. According to the...
Journal of Psychopharmacology
November 11, 2014
Peter Gasser, Katharina Kirchner, Torsten Passie
458 citations
Objective: A recently published study showed the safety and efficacy of LSD-assisted psychotherapy in patients with anxiety associated with life-threatening diseases. Participants of this study were included in a prospective follow-up. Method: 12 months after finishing LSD psychotherapy, 10 participants were tested for anxiety (STAI) and participated in a semi-structured interview. A...
The Journal of Nervous and Mental Disease
March 4, 2014
Peter Gasser, Dominique Holstein, Yvonne Michel et al.
752 citations
A double-blind, randomized, active placebo-controlled pilot study was conducted to examine safety and efficacy of lysergic acid diethylamide (LSD)-assisted psychotherapy in 12 patients with anxiety associated with life-threatening diseases. Treatment included drug-free psychotherapy sessions supplemented by two LSD-assisted psychotherapy sessions 2 to 3 weeks apart. The participants received...
Der Nervenarzt
March 1, 2013
T Passie, J Warncke, T Peschel et al.
3 citations
Religions are evolutionary selected social and cultural phenomena. They represent today belief and normative systems on which the main parts of our culture are based. For a long time religions have been seen as mainly originating from a spectrum of religious experiences. These include a broad spectrum of experiences and are astonishingly widespread in the population. The most consistent and...
Frontiers in Psychology
2013
Janina Nielsen, Tillmann H. C. Krüger, Uwe Hartmann et al.
13 citations
INTRODUCTION: Synaesthesia is a phenomenon in which a certain stimulus induces a concurrent sensory perception; it has an estimated prevalence of 4%. Sexual arousal as an inducer for synaesthetic perceptions is rarely mentioned in the literature but can be found sometimes in case reports about subjective orgasmic experiences. AIMS: To examine whether synaesthetic perceptions during sexual...
Psychology Health & Medicine
November 27, 2012
Torsten Passie, Udo Schneider, Mathias Borsutzky et al.
7 citations
The binocular depth inversion test (BDIT) measures a common illusion of visual perception whereby implausible objects are seen as normal, e.g., a hollow face is perceived as a normal, convex face. Such inversion is frequent, especially for objects with a high degree of familiarity. Under normal conditions, cognitive factors apparently override the binocular disparity cues of stereopsis. This...
Drug Testing and Analysis
June 26, 2012
Torsten Passie, Hinderk M. Emrich, Matthias Karst et al.
114 citations
It is known from clinical studies that some patients attempt to cope with the symptoms of post-traumatic stress disorder (PTSD) by using recreational drugs. This review presents a case report of a 19-year-old male patient with a spectrum of severe PTSD symptoms, such as intense flashbacks, panic attacks, and self-mutilation, who discovered that some of his major symptoms were dramatically...
Addiction
August 1, 2010
Udo Benzenhöfer, Torsten Passie
69 citations
ABSTRACTAims Alexander T. Shulgin is widely thought of as the ‘father’ of +/−3,4‐methylenedioxymethamphetamine (MDMA). This paper re‐assesses his role in the modern history of this drug.Methods We analysed systematically Shulgin's original publications on MDMA, his publications on the history of MDMA and his laboratory notebook.Results According to Shulgin's book PIHKAL (1991), he synthesized...
Cephalalgia
March 26, 2010
Matthias Karst, John H. Halpern, Michael Bernateck et al.
104 citations
Cluster headache (CH) is a stereotyped primary headache characterized by strictly unilateral severe orbital or periorbital pain and categorized as either episodic or chronic (1,2). Its prevalence is 0.1% (3). Oxygen and sumatriptan are the treatments of choice for individual attacks, whereas verapamil, lithium, corticosteroids and other neuromodulators can suppress attacks during cluster...
Pharmacopsychiatry
August 31, 2009
Torsten Passie
The classification of psychoactive substances (stimulants, entactogens, hallucinogens) in the frame of psychopharmacology was not worked on since the 1960s. Based on the authors empirical and theoretical research about the psychophysical correlates of waking altered states of consciousness, he lecture will present a recently developed new classification of psychoactive substances. Method: The...
CNS Neuroscience & Therapeutics
November 11, 2008
Torsten Passie, John H. Halpern, Dirk O. Stichtenoth et al.
459 citations
Lysergic acid diethylamide (LSD) was synthesized in 1938 and its psychoactive effects discovered in 1943. It was used during the 1950s and 1960s as an experimental drug in psychiatric research for producing so‐called “experimental psychosis” by altering neurotransmitter system and in psychotherapeutic procedures (“psycholytic” and “psychedelic” therapy). From the mid 1960s, it became an illegal...
Der Nervenarzt
January 2006
Udo Benzenhöfer, Torsten Passie
There is no consensus in the literature regarding the early history of MDMA (Methylendioxymethamphetamine, so-called "Ecstasy"). Various authors credit the first synthesis of MDMA to the German chemist Fritz Haber, but it appears neither in his doctoral thesis (Berlin 1891) nor in his accompanying articles. The man who first synthesized MDMA was the chemist Dr. Anton Köllisch, who worked for...
Neuropsychobiology
2005
Torsten Passie, Matthias Karst, Birgitt Wiese et al.
35 citations
This is the first neuropsychological study using the S-enantiomer of the noncompetitive N-methyl-D-aspartate antagonist ketamine. In 2 randomized placebo-controlled trials we studied effects of two different doses of (S)-ketamine (low dose/high dose) on neuropsychological functions and psychopathology in 12 healthy male volunteers. Impairment was measured via standardized neuropsychological...
Journal of Psychopharmacology
2003
Torsten Passie, Matthias Karst, Mathias Borsutzky et al.
27 citations
The role of the N-methyl-D-aspartate (NMDA) neurotransmitter system in relation to psychoses is not completely understood, but represent a challenge in neurobiological research. The psychotic states induced by NMDA antagonists such as phencyclidine and ketamine have been described as being most similar to schizophrenia and the NMDA system has been implicated in the pathogenesis of...
Addiction Biology
October 1, 2002
Torsten Passie, Juergen Seifert, Udo Schneider et al.
465 citations
Abstract Psilocybin (4‐phosphoryloxy‐N,N‐dimethyltryptamine) is the major psychoactive alkaloid of some species of mushrooms distributed worldwide.These mushrooms represent a growing problem regarding hallucinogenic drug abuse. Despite its experimental medical use in the 1960s, only very few pharmacological data about psilocybin were known until recently. Because of its still growing capacity...