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Addiction: all studies

Page 658 of 860: studies 6,571 to 6,580 of 8,594, newest first. Back to the addiction overview

Research

Character Strengths in the Context of Christian Contemplative Practice Facilitating Recovery from Alcohol Misuse: Two Case Studies

Journal of Spirituality in Mental Health July 3, 2015 S. Selvam 4 citations

There is an increasing interest in studying the association between spirituality and addiction, and the effect of mindfulness on recovery. There have been some attempts at exploring the mediators of the association, but seldom in the context of Christian contemplation and rarely within a single theoretical framework of psychology. This article reports two case studies from an intervention study...

The dream-lag effect: Selective processing of personally significant events during Rapid Eye Movement sleep, but not during Slow Wave Sleep.

Neurobiology of Learning and Memory July 1, 2015 Elaine Van Rijn, J-B Eichenlaub, Penelope A. Lewis et al.

Incorporation of details from waking life events into Rapid Eye Movement (REM) sleep dreams has been found to be highest on the night after, and then 5-7 nights after events (termed, respectively, the day-residue and dream-lag effects). In experiment 1, 44 participants kept a daily log for 10 days, reporting major daily activities (MDAs), personally significant events (PSEs), and major concerns...

DOI: 10.1016/j.nlm.2015.01.009 (opens in new tab) Full text (opens in new tab) Dream-lag Memory consolidation Rem sleep Slow wave sleep

Overnight improvements in two REM sleep-sensitive tasks are associated with both REM and NREM sleep changes, sleep spindle features, and awakenings for dream recall.

Neurobiology of Learning and Memory July 1, 2015 Tore Nielsen, C O'Reilly, Michelle Carr et al.

Memory consolidation is associated with sleep physiology but the contribution of specific sleep stages remains controversial. To clarify the contribution of REM sleep, participants were administered two REM sleep-sensitive tasks to determine if associated changes occurred only in REM sleep. Twenty-two participants (7 men) were administered the Corsi Block Tapping and Tower of Hanoi tasks prior...

DOI: 10.1016/j.nlm.2014.09.007 (opens in new tab) Full text (opens in new tab) Dreaming Nrem sleep Sleep spindles Visuospatial memory consolidation

Repetitive speech elicits widespread deactivation in the human cortex: the "Mantra" effect?

Brain and Behavior July 1, 2015 Aviva Berkovich-Ohana, Meytal Wilf, Roni Kahana et al.

Mantra (prolonged repetitive verbal utterance) is one of the most universal mental practices in human culture. However, the underlying neuronal mechanisms that may explain its powerful emotional and cognitive impact are unknown. In order to try to isolate the effect of silent repetitive speech, which is used in most commonly practiced Mantra meditative practices, on brain activity, we studied...

Is meditation always relaxing? Investigating heart rate, heart rate variability, experienced effort and likeability during training of three types of meditation.

International Journal of Psychophysiology July 1, 2015 Anna-Lena Lumma, Bethany E Kok, Tania Singer

Meditation is often associated with a relaxed state of the body. However, meditation can also be regarded as a type of mental task and training, associated with mental effort and physiological arousal. The cardiovascular effects of meditation may vary depending on the type of meditation, degree of mental effort, and amount of training. In the current study we assessed heart rate (HR),...

Venlafaxine as the ‘baby ecstasy’? Literature overview and analysis of web‐based misusers′ experiences

Human Psychopharmacology: Clinical and Experimental July 1, 2015 Giulia Francesconi, Laura Orsolini, Duccio Papanti et al. 22 citations

INTRODUCTION: Venlafaxine is one of the most frequently prescribed antidepressants worldwide, despite its toxicity risk in overdose. Furthermore, the molecule has been recently identified at the EU-wide level as one of the novel psychoactive substances. This paper aims at investigating the potential of misuse, taking into account both the existing literature and the analysis of the misusers'...

Internet-purchased ibogaine toxicity confirmed with serum, urine, and product content levels.

The American Journal of Emergency Medicine July 1, 2015 Charles W O'Connell, Roy R Gerona, Matthew W Friesen et al. 16 citations

Ibogaine, a psychotropic indole alkaloid, is gaining popularity among medical subcultures for its purported anti addictive properties. Its use has been associated with altered mental status, ataxia, gastrointestinal distress, ventricular arrhythmias, and sudden and unexplained deaths.Its pharmacokinetics in toxic states is not well understood. Case report:A 33-year-old man overdosed on ibogaine...

DOI: 10.1016/j.ajem.2014.12.023 (opens in new tab) Full text (opens in new tab) Ibogaine toxicity ibogaine Health risks Heart complications Overdose +9

Shaped by the Past: The Default Mode Network Supports Cognition that Is Independent of Immediate Perceptual Input

PLoS One June 30, 2015 Mahiko Konishi, Donald George McLaren, Haakon Engen et al. 210 citations

Although many different accounts of the functions of the default mode network (DMN) have been proposed, few can adequately account for the spectrum of different cognitive functions that utilize this network. The current study used functional magnetic resonance imaging (fMRI) to explore the hypothesis that the role of the DMN in higher order cognition is to allow cognition to be shaped by...

Expectations accelerate entry of visual stimuli into awareness

Journal of Vision June 26, 2015 Yair Pinto, Simon van Gaal, Floris P De Lange et al. 177 citations

How do expectations influence transitions between unconscious and conscious perceptual processing? According to the influential predictive processing framework, perceptual content is determined by predictive models of the causes of sensory signals. On one interpretation, conscious contents arise when predictive models are verified by matching sensory input (minimizing prediction error). On...

DOI: 10.1167/15.8.13 (opens in new tab) Full text (opens in new tab) Stimulus psychology Predictive coding Cognitive psychology Consciousness +7