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Addiction: all studies

Page 801 of 857: studies 8,001 to 8,010 of 8,563, newest first. Back to the addiction overview

Research

Assessment of neurotoxicity from potential medications for drug abuse: ibogaine testing and brain imaging.

Annals of the New York Academy of Sciences May 30, 1997 F J Vocci, E D London 6 citations

New technologies utilized for monitoring brain function can be more sensitive in the assessment of desired or undesired pharmacological effects than can clinical examination. Nonetheless, careful case-by-case analysis is required to determine to what extent a change detected with a sensitive imaging modality will have clinical significance. Whereas in some instances the technology may suggest a...

Introduction: What Is Magic?

The End of Magic May 15, 1997 Ariel Glucklich

AbstractWhat is magic? What does magic do? Why do people believe in magic in the face of experience? After living in the Indian city of Banaras and making several trips to tribal areas in Uttar Pradesh, Rajasthan, and Orissa, the author of this chapter discovered a surprising fact: magic is rarely a simple matter of belief. Few magicians and clients in Banaras ever ask themselves why their...

Consciousness in waking and dreaming: the roles of neuronal oscillation and neuromodulation in determining similarities and differences.

Neuroscience May 1997 D Kahn, Edward F Pace-Schott, J A Hobson

State-dependent aspects of consciousness are explored with particular attention to waking and dreaming. First, those phenomenological differences between waking and dreaming that have been established through subjective reports are reviewed. These differences are robustly expressed in most aspects of consciousness including perception, attention, memory, emotion, orientation, and thought. Next,...

Ecstasy (MDMA) in Recreational Users: Self-Reported Psychological and Physiological Effects

Human Psychopharmacology: Clinical and Experimental May 1, 1997 D. Davison, A. C. Parrott 136 citations

Twenty recreational drug users were asked to describe the psychological and physiological effects they experienced under MDMA (3,4-methylenedioxymethamphetamine). The subjects comprised 11 males and nine females, in the age range 18–31 years. Five subjects had taken MDMA once, nine had taken it 2–9 times, while six subjects had taken it +10 times. Each subject completed a modified Profile of...

The effects of alcohol history on the reinforcing, subjective and psychomotor effects of nitrous oxide in healthy volunteers.

Drug and Alcohol Dependence April 14, 1997 A M Cho, Dennis W. Coalson, P A Klock et al.

The purpose of this study was to characterize the reinforcing, subjective and psychomotor effects of nitrous oxide in healthy volunteers with different alcohol histories. Subjects were divided into two groups: light drinkers (n = 9) and moderate drinkers (n = 10). A choice procedure was used in which subjects first sampled placebo and a given concentration of nitrous oxide, and then chose...

alpha2-Adrenoceptor antagonists reverse the 5-HT2 receptor antagonist suppression of head-twitch behavior in mice.

Pharmacology, Biochemistry, and Behavior March 1997 Kinzo Matsumoto, Maho Mizowaki, S Thongpraditchote et al.

The alpha2-adrenoceptor agonist clonidine, as well as 5-HT2 receptor antagonists, reportedly suppress 5-HT2 receptor-mediated head-twitch behavior. We investigated the effect of alpha2-adrenoceptor antagonists on the suppressive action of 5-HT2 receptor antagonists in mice pretreated with the noradrenaline toxin 6-hydroxydopamine (6-OHDA) or the 5-HT synthesis inhibitor p-chlorophenylalanine...

Evidence for roles of kappa-opioid and NMDA receptors in the mechanism of action of ibogaine.

Brain Research February 28, 1997 Stanley D Glick, Isabelle M Maisonneuve, S M Pearl 38 citations

Ibogaine, a putatively anti-addictive alkaloid, binds to kappa-opioid and NMDA receptors. In the present study we investigated the roles of kappa-opioid and NMDA actions in mediating ibogaine's (40 mg/kg, i.p.) behavioral and neurochemical effects in rats. A combination of a kappa-opioid antagonist (norbinaltorphimine, 10 mg/kg, s.c.) and a NMDA agonist (NMDA, 20 mg/kg, i.p.) partially...

MDMA("Ecstasy")-Konsum - ein Überblick zu psychiatrischen und medizinischen Folgen

Fortschritte der Neurologie · Psychiatrie February 1, 1997 Rainer Thomasius, Margit Schmolke, Dana Kraus

Epidemiological research and Substance Abuse Warning Systems point to a sharp increase in the use of "Ecstasy" (MDMA), as well as to structural changes in the drug scene in and outside Europe. For some consumers, "Ecstasy" opens the door to the abuse of other illegal substances. Since the mid-eighties psychiatric complications and consequences of the abuse of MDMA have been reported in at least...

The abused drug MDMA (Ecstasy) induces programmed death of human serotonergic cells

The FASEB Journal February 1, 1997 Rabi Simantov, M Tauber 89 citations

The widely abused amphetamine analog 3,4‐methylenecdioxymethamphetamine (MDMA, also called “ecstasy”) induces hallucination and psychostimulation, as well as long‐term neuropsychiatric behaviors such as panic and psychosis. In rodents and monkeys, MDMA is cytotoxic to serotonergic neurons, but this is less clear with humans. Herein, MDMA was cytotoxic to human serotonergic JAR cells; it altered...

Ibogaine and the dopaminergic response to nicotine.

Psychopharmacology February 1, 1997 Isabelle M Maisonneuve, G L Mann, C R Deibel et al. 38 citations

There is increasing evidence that the rewarding effect of nicotine is mediated by the mesolimbic dopamine system. The first objective of this study was to examine the dopamine response to repeated i.v. infusions of nicotine. Using in vivo microdialysis in awake and freely moving male Sprague-Dawley rats, we demonstrated that i.v. nicotine infusions (0.16 mg/kg or 0.32 mg/kg per infusion)...