Behavioural Brain Research
December 15, 2014
Martesa Tantra, Tim Kröcher, Sergi Papiol et al.
The neural cell adhesion molecule (NCAM) and its functionally linked polysialyltransferases, ST8SIA2 and ST8SIA4, are crucial for synaptic plasticity. Variations in encoding genes have been associated with mental illness. Since cannabinoids can alter NCAM polysialylation, we hypothesized that delta-9-tetrahydrocannabinol (Δ9-THC) might act as environmental 'second hit' regarding cognition of...
Frontiers in Psychology
December 3, 2014
Christine Ma‐Kellams
This review examines cross-cultural differences in interoception and the role of culturally bound epistemologies, historical traditions, and contemplative practices to assess four aspects of culture and interoception: (1) the extent to which members from Western and non-Western cultural groups exhibit differential levels of interoceptive accuracy and somatic awareness; (2) the mechanistic...
Psychopharmacology
December 2014
Claudine C Hunault, Koen B E Böcker, R K Stellato et al.
An increase in the potency of the cannabis cigarettes has been observed over the past three decades. In this study, we aimed to establish the impact of Δ9-tetrahydrocannabinol (THC) on the rating of subjective effects (intensity and duration of the effects), up to 23 % THC potency (69 mg THC) among recreational users. Recreational users (N = 24) smoked cannabis cigarettes with four doses of THC...
Behaviour Research and Therapy
December 2014
Billie Lever Taylor, Clara Strauss, Kate Cavanagh et al.
Mindfulness-based cognitive therapy (MBCT) involves approximately twenty hours of therapist contact time and is not universally available. MBCT self-help (MBCT-SH) may widen access but little is known about its effectiveness. This paper presents a randomised controlled trial (RCT) of MBCT-SH for students. Eighty students were randomly assigned to an eight-week MBCT-SH condition or a wait-list...
Neuropharmacology
December 2014
E B De Sousa Fernandes Perna, E L Theunissen, K P C Kuypers et al.
Previous studies have shown that single doses of MDMA can affect mood and impair memory in humans. The neuropharmacological mechanisms involved in MDMA-induced memory impairment are not clear. Memantine, an NMDA and alpha 7 nicotinic acetylcholine (ACh) receptor antagonist, was able to reverse MDMA-induced memory impairment in rats. This study investigated whether treatment with memantine can...
Culture, Medicine, and Psychiatry
December 1, 2014
Ram P Sapkota, Dristy Gurung, Deepa Neupane et al.
In Nepal, spirit possession is a common phenomenon occurring both in individuals and in groups. To identify the cultural contexts and psychosocial correlates of spirit possession, we conducted a mixed-method study in a village in central Nepal experiencing a cluster of spirit possession events. The study was carried out in three stages: (1) a pilot study consisting of informal interviews with...
Quality of Life Research
November 2014
Romy Lauche, Jost Langhorst, Anna Paul et al.
While many clinical trials suggest that meditation is effective in reducing disease-related symptoms and increasing quality of life in diseased samples, subjective health benefits associated with the use of meditation under naturalistic conditions have not yet been investigated. The aim of this study was to investigate the differences in quality of life, mental health, and satisfaction in...
European Neuropsychopharmacology
November 2014
Konstantin Kuteykin-Teplyakov, Rafaël Maldonado
Social behavior plays a fundamental role in life of many animal species, allowing the interaction between individuals and sharing of experiences, needs, and goals across them. In humans, some neuropsychiatric diseases, including anxiety, posttraumatic stress disorder and autism spectrum disorders, are often characterized by impaired sociability. Here we report that...
Drug and Alcohol Dependence
November 1, 2014
Marisol S. Castaneto, David A. Gorelick, Nathalie A. Desrosiers et al.
Synthetic cannabinoids (SC) are a heterogeneous group of compounds developed to probe the endogenous cannabinoid system or as potential therapeutics. Clandestine laboratories subsequently utilized published data to develop SC variations marketed as abusable designer drugs. In the early 2000s, SC became popular as "legal highs" under brand names such as Spice and K2, in part due to their ability...
Brain and Cognition
November 1, 2014
Péter Simor, János Körmendi, Klára Horváth et al.
Abnormal arousal processes, sympathetic influences, as well as wake-like alpha activity during sleep were reported as pathophysiological features of Nightmare Disorder. We hypothesized that in Nightmare Disorder, wake-like cortical activity and peripheral measures linked to arousals would be triggered by physiological processes related to the initiation of REM periods. Therefore, we examined...