Neuroscience
November 9, 2007
Nadia Benturquia, Stéphanie Le Guen, C Canestrelli et al.
Nitrous oxide (N(2)O), a pharmacological active gas and an antagonist of N-methyl-D-aspartic acid receptors, has been reported to be effective in the treatment of alcohol and tobacco withdrawal syndrome. However, the neurobiological bases of N(2)O effects are unknown. The aim of the present studies was to examine the effect of N(2)O on acquisition and expression of morphine- (10 mg/kg; s.c.)...
Neurotoxicology
November 2007
Anna M S Kindlundh-Högberg, Helgi B Schiöth, Per Svenningsson
The popular recreational drug, 3,4-methylenedioxymethamphetamine (MDMA) is often taken as intermittent binges by adolescents at dance clubs. The neurobiological mechanisms that underlie MDMA-induced psychiatric conditions are still poorly understood. In the present study, mimicking adolescent patterns of administration, repeated intermittent MDMA binges (3x5 mg/(kg day) given 3h apart, every...
Proceedings of the National Academy of Sciences
October 11, 2007
Yi-Yuan Tang, Yinghua Ma, Junhong Wang et al.
1,585 citations
Recent studies suggest that months to years of intensive and systematic meditation training can improve attention. However, the lengthy training required has made it difficult to use random assignment of participants to conditions to confirm these findings. This article shows that a group randomly assigned to 5 days of meditation practice with the integrative body-mind training method shows...
Indian Journal of Psychiatry
October 2007
Vani Kulhalli, Mohan Isaac, Pratima Murthy
The correlation between cannabis and negative mental health outcomes has been unequivocally established. Nevertheless, there is still a great need to research different dimensions of cannabis-related disorders, among which the study of cannabis-related psychosis is very important. There is a dearth of research regarding phenomenology and effect of abstinence, particularly from India. This study...
Presse medicale (Paris, France : 1983)
October 2007
Bernard Marc, Antoine Martis, Céline Moreau et al.
The toxic effects of Datura stramonium most often include visual and auditory hallucinations, confusion and agitation. Severe and even fatal complications (coma, respiratory distress or death in more than 5% of cases) are not rare since the lethal concentration of the drug's toxic substances (i.e., atropine and scopolamine) is close to the level at which delirium occurs. A 17-year-old man was...
Neuropsychopharmacology
September 2007
Tiziana Rubino, Mariaelvina Sala, Daniela Viganò et al.
We investigated the effect of low doses of intraperitoneal Delta(9)-tetrahydrocannabinol (THC) on anxiety behavior in rats using the elevated plus maze (EPM). An anxiolytic effect was obtained in a range of doses between 0.075 and 1.5 mg/kg, the 0.75 dose being the most effective. Pretreatment with the CB1 receptor antagonist AM251 fully reversed THC's effect, suggesting CB1 receptors were...
Sleep
September 1, 2007
Tore Nielsen, Tyna Paquette
Study objectives: Evaluate the prevalence and phenomenology of dream-associated behaviors affecting pregnant and postpartum mothers. Episodes consist of anxious dreams and nightmares about the new infant that are accompanied by complex behaviors (motor activity, speaking, expressing emotion). Design: Three-group design (postpartum, pregnant, null gravida), self-report, and repeated measures....
European Child & Adolescent Psychiatry
September 2007
Florence L Askenazy, Karine Lestideau, Anne Meynadier et al.
The aims of this study were to describe the phenomenology of auditory hallucinations in children, to establish links with DSM IV diagnoses and to explore development of the hallucinations over a 12-month period. Outpatients aged 5- to 12-year-old were consecutively recruited. They were interviewed using a questionnaire investigating auditory hallucinations. DSM IV diagnoses were determined....
Pain
September 2007
Lance M. McCracken, Jeremy Gauntlett-Gilbert, Kevin E Vowles
An increasing number of studies consider the specific processes by which distressing sensations, thoughts, and emotional experiences exert their influence on the daily functioning of those who suffer with chronic pain. Clinical methods of mindfulness and the processes that underlie them appear to have clear implications in this area, but have not been systematically investigated to this point...
Journal of Sleep Research
September 1, 2007
Mariana Szklo‐coxe, Terry Young, Laurel Finn et al.
SummarySleep disturbances are important correlates of depression, with epidemiologic research heretofore focused on insomnia and sleepiness. This epidemiologic study’s aim was to investigate, in a community sample, depression’s relationships to other sleep disturbances: sleep paralysis (SP), hypnagogic/hypnopompic hallucinations (HH), cataplexy – considered rapid eye movement‐related...