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Anxiety: all studies

Page 716 of 774: studies 7,151 to 7,160 of 7,737, newest first. Back to the anxiety overview

Research

Impaired executive functions in subjects with frequent nightmares as reflected by performance in different neuropsychological tasks.

Brain and Cognition April 1, 2012 Péter Simor, Péter Pajkossy, Klára Horváth et al.

Nightmare disorder is a prevalent parasomnia characterized by vivid and highly unpleasant dream experiences during night time sleep. The neural background of disturbed dreaming was proposed to be associated with impaired prefrontal and fronto-limbic functioning during REM sleep. We hypothesized that the impaired prefrontal and fronto-limbic functioning in subjects with frequent nightmares would...

Effects of the hallucinogenic drugs mescaline, phencyclidine and psilocybin on zebrafish behavior and physiology

The FASEB Journal April 1, 2012 Evan J. Kyzar, Christopher Collins, Jeremy Green et al. 1 citation

Mescaline, phencyclidine (PCP) and psilocybin are potent hallucinogenic drugs strongly affecting both human and animal behavior. However, these compounds have not been previously investigated in zebrafish (Danio rerio), rapidly gaining popularity as a model in psychopharmacology research. Here, we examine the effects of mescaline, PCP and psilocybin in multiple behavioral paradigms. Mescaline...

Hearing voices: does it give your patient a headache? A case of auditory hallucinations as acoustic aura in migraine.

Neuropsychiatric Disease and Treatment March 14, 2012 Christina M Van der Feltz-Cornelis, Henk Biemans, Jan Timmer

Objective: Auditory hallucinations are generally considered to be a psychotic symptom. However, they do occur without other psychotic symptoms in a substantive number of cases in the general population and can cause a lot of individual distress because of the supposed association with schizophrenia. We describe a case of nonpsychotic auditory hallucinations occurring in the context of migraine....

Sub-chronic impact of cannabinoids in street cannabis on cognition, psychotic-like symptoms and psychological well-being

Psychological Medicine February 1, 2012 C. J. A. Morgan, Chelsea Gardener, G. Schafer et al.

Background Cannabis varies considerably in levels of its two major constituent cannabinoids – (delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). Recently, we found evidence that those who smoked cannabis containing detectable levels of CBD had fewer psychotic-like symptoms than those whose cannabis had no CBD. The present study aimed, first, to replicate those findings and, second, to...

Mindfulness-Based Cognitive Therapy: Theory and Practice

The Canadian Journal of Psychiatry February 1, 2012 Walter E B Sipe, Stuart J. Eisendrath 283 citations

Mindfulness-based cognitive therapy (MBCT) incorporates elements of cognitive-behavioural therapy with mindfulness-based stress reduction into an 8-session group program. Initially conceived as an intervention for relapse prevention in people with recurrent depression, it has since been applied to various psychiatric conditions. Our paper aims to briefly describe MBCT and its putative...

Differential signaling properties at the kappa opioid receptor of 12-epi-salvinorin A and its analogues.

Bioorganic & Medicinal Chemistry Letters January 15, 2012 Cécile Béguin, Justin Potuzak, Wei Xu et al.

The kappa opioid receptor (KOPR) has been identified as a potential drug target to prevent or alter the course of mood, anxiety and addictive disorders or reduce response to stress. In a search for highly potent and selective KOPR partial agonists as pharmacological tools, we have modified 12-epi-salvinorin A, a compound which we have previously observed to be a KOPR partial agonist. Five...

Pre-treatment with the mGlu2/3 receptor agonist LY379268 attenuates DOI-induced impulsive responding and regional c-Fos protein expression.

Psychopharmacology January 2012 Lena Wischhof, Michael Koch

Overactivation of serotonin (5-hydroxytryptamine, 5-HT)(2A) receptors causes impulsivity and attentional deficits. Since 5-HT(2A) receptors are known to entertain antagonistic interactions with metabotropic glutamate (mGlu)2/3 receptors, this interaction may provide an alternative target for a novel class of antipsychotics. The study characterizes interactions between 5-HT(2A) and mGlu2/3...

The effects of mindfulness-based stress reduction on psychosocial outcomes and quality of life in early-stage breast cancer patients: a randomized trial.

Breast cancer research and treatment January 2012 Virginia P Henderson, Lynn Clemow, Ann O Massion et al.

The aim of this study was determine the effectiveness of a mindfulness-based stress-reduction (MBSR) program on quality of life (QOL) and psychosocial outcomes in women with early-stage breast cancer, using a three-arm randomized controlled clinical trial (RCT). This RCT consisting of 172 women, aged 20-65 with stage I or II breast cancer consisted of the 8-week MBSR, which was compared to a...

Functional weakness: clues to mechanism from the nature of onset.

Journal of Neurology, Neurosurgery, and Psychiatry January 2012 Jon Stone, Charles Warlow, Michael Sharpe

Functional weakness describes weakness which is inconsistent and incongruent with disease. It is also referred to as motor conversion disorder (DSM-IV), dissociative motor disorder (ICD-10) and 'psychogenic' paralysis. Studies of aetiology have focused on risk factors such as childhood adversity and life events; information on the nature and circumstance of symptom onset may shed light on the...

An exploratory study on the relationship between dissociation in waking life and negative contents in dreams

heiDOK (Heidelberg University) 2012 Victor Kai-Lam Cheung 11 citations

Even though the relationship between nightmare and dissociation is investigated in western populations with mental illness, relevant dream studies in non-patient Chinese population, and about specific type of nightmares, are completely lacking. According to continuity hypothesis of dreaming, nightmares reflect the negative emotion, mental conditions, and symptomatology of waking life. The...