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Addiction: all studies

Page 666 of 857: studies 6,651 to 6,660 of 8,563, newest first. Back to the addiction overview

Research

General health workers' description of mental health problems and treatment approaches used in Papua New Guinea.

International Journal of Social Psychiatry November 1, 2014 Betty E Koka, Frank P Deane, Geoffrey Cb Lyons et al. 5 citations

Papua New Guinea is a developing country with limited resources for specialist mental health services. Little is known about the mental health and treatment services of Papua New Guinea. The aim of this study was to clarify the presenting mental health problems encountered by Papua New Guinean health workers and the common treatment approaches used. A total of 203 Papua New Guinean health...

DOI: 10.1177/0020764013513441 (opens in new tab) Full text (opens in new tab) Papua new guinea Culture Diagnoses Health services +2

BDNF Release Is Required for the Behavioral Actions of Ketamine

The International Journal of Neuropsychopharmacology October 31, 2014 Ashley E. Lepack, Manabu Fuchikami, J. M. Dwyer et al. 369 citations

BACKGROUND: Recent studies demonstrate that the rapid antidepressant ketamine increases spine number and function in the medial prefrontal cortex (mPFC), and that these effects are dependent on activation of glutamate α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptors and brain-derived neurotrophic factor (BDNF). In vitro studies also show that activation of AMPA receptors...

DOI: 10.1093/ijnp/pyu033 (opens in new tab) Full text (opens in new tab) Ketamine Ampa receptor Glutamate receptor Pharmacology +9

Effects of MDMA on body temperature in humans

Temperature October 31, 2014 Matthias E. Liechti 64 citations

Hyperthermia is a severe complication associated with the recreational use of 3,4-methylenedioxymethamphetamine (MDMA, Ecstasy). In this review, the clinical laboratory studies that tested the effects of MDMA on body temperature are summarized. The mechanisms that underlie the hyperthermic effects of MDMA in humans and treatment of severe hyperthermia are presented. The data show that MDMA...

Investigating ongoing brain oscillations and their influence on conscious perception - network states and the window to consciousness.

Frontiers in Psychology October 30, 2014 Philipp Ruhnau, Anne Hauswald, Nathan Weisz

In cognitive neuroscience, prerequisites of consciousness are of high interest. Within recent years it has become more commonly understood that ongoing brain activity, mainly measured with electrophysiology, can predict whether an upcoming stimulus is consciously perceived. One approach to investigate the relationship between ongoing brain activity and conscious perception is to conduct...

DOI: 10.3389/fpsyg.2014.01230 (opens in new tab) Full text (opens in new tab) Consciousness Alpha oscillations Network connectivity Win2con +1

Psilocybin and Obsessive Compulsive Disorder

Journal of Psychoactive Drugs October 20, 2014 James A. Wilcox 55 citations

Obsessive Compulsive Disorder (OCD) is a psychiatric disorder with considerable morbidity and mortality. This condition disables many individuals and is often refractory to treatment. Research suggests that serotonin plays a role in OCD symptom reduction. We present a case of an individual who successfully used psilocybin, a serotonergic agent, to reduce the core symptoms of OCD for several...

Virtual reality and consciousness inference in dreaming.

Frontiers in Psychology October 9, 2014 J Allan Hobson, Charles C-H Hong, Karl Friston

This article explores the notion that the brain is genetically endowed with an innate virtual reality generator that - through experience-dependent plasticity - becomes a generative or predictive model of the world. This model, which is most clearly revealed in rapid eye movement (REM) sleep dreaming, may provide the theater for conscious experience. Functional neuroimaging evidence for brain...

DOI: 10.3389/fpsyg.2014.01133 (opens in new tab) Full text (opens in new tab) Prediction Sleep Free energy Virtual reality +4

Use of a synthetic cannabinoid in a correctional population for posttraumatic stress disorder-related insomnia and nightmares, chronic pain, harm reduction, and other indications: a retrospective evaluation.

Journal of Clinical Psychopharmacology October 2014 Colin Cameron, Diane Watson, Jeffrey D. Robinson

Nabilone is a synthetic cannabinoid that has shown promise for the treatment of posttraumatic stress disorder (PTSD)-related insomnia and nightmares as well as efficacy in the management of chronic pain. It has also been proposed for harm reduction in cannabis dependence. Its effectiveness for management of concurrent disorders in seriously mentally ill correctional populations has not been...

Effectiveness of mindfulness-based cognitive therapy for co-morbid depression in drug-dependent males.

Archives of Psychiatric Nursing October 2014 Navidreza Hosseinzadeh Asl, Usha Barahmand

The present study aimed at examining the effect of Mindfulness-Based Cognitive Therapy (MBCT) in decreasing depression symptoms in dully diagnosed males (drug dependent males with co-morbid depression).An experimental research design with pre- and post-tests and a control group was used. The sample of the study comprised 33 drug-dependent men who also endorsed depression symptoms on the Beck...

Central amygdala nicotinic and 5-HT1A receptors mediate the reversal effect of nicotine and MDMA on morphine-induced amnesia.

Neuroscience September 26, 2014 F Tirgar, A Rezayof, M-R Zarrindast

The present study was designed to investigate possible involvement of the central amygdala (CeA) nicotinic acetylcholine (nACh) and 5-hydroxytryptamine 1A (5-HT1A) receptors in the reversal effect of nicotine and 3,4-methylenedioxy-N-methylamphetamine (MDMA or ecstasy) on morphine-induced amnesia. Two guide cannulas were stereotaxically implanted in the CeA regions and a step-through passive...

Processing of proprioceptive and vestibular body signals and self-transcendence in Ashtanga yoga practitioners

Frontiers in Human Neuroscience September 22, 2014 Francesca eFiori, Nicole eDavid, Salvatore Maria Aglioti

In the rod and frame test (RFT), participants are asked to set a tilted visual linear marker (i.e. a rod), embedded in a square, to the subjective vertical, irrespective of the surrounding frame. People not influenced by the frame tilt are defined as field-independent, while people biased in their rod verticality perception are field-dependent. Performing RFT requires the integration of...

DOI: 10.3389/fnhum.2014.00734 (opens in new tab) Full text (opens in new tab) Yoga Self-transcendence Field dependency/independency Body expertise