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Addiction: all studies

Page 754 of 863: studies 7,531 to 7,540 of 8,627, newest first. Back to the addiction overview

Research

Sleep paralysis and trauma, psychiatric symptoms and disorders in an adult African American population attending primary medical care.

Depression and Anxiety 2008 Thomas A. Mellman, Notalelomwan Aigbogun, Ruth Elaine Graves et al.

The occurrence of sleep paralysis (SP) absent narcolepsy appears to not be uncommon in African Americans and probably other non-European groups. Prior research has linked SP to trauma and psychiatric disorders and suggested a specific relationship to panic disorder in African Americans. The objective of our study was to evaluate relationships of SP with trauma, concurrent psychiatric symptoms...

Homeostatic and Circadian Influences on Dreaming: NREM Mentation During a Short Daytime Nap

heiDOK (Heidelberg University) 2008 Erin J. Wamsley, John S. Antrobus 2 citations

It has long been known that dream recall, along with various other features of dreaming, changes as a function of time of night. Yet the processes which might account for these time-dependent variations remain obscure. Here we assess the contribution of homeostatic and circadian factors to the generation of NREM mentation across the diurnal cycle. Assuming that previously reported time-of-night...

Relationship of Personal Cognitive Schemas to the Labeling of a Profound Emotional Experience as Religious-Mystical or Aesthetic

Empirical Studies of the Arts 2008 Ken Stange, Shelley E. Taylor

Subjective experiences of profound religious-mystical and aesthetic experiences share common characteristics, suggesting that apparent differences between them may reflect a person's individual cognitive schema. Six characteristics common to descriptions of religious-mystical and aesthetic experiences were distinguished. A questionnaire was designed to determine the following: 1) the extent to...

Effects of ambient temperature on the relative reinforcing strength of MDMA using a choice procedure in monkeys.

Psychopharmacology January 2008 Matthew L Banks, Jon E. Sprague, Paul W Czoty et al.

3,4-Methylenedioxymethamphetamine (MDMA, ecstasy) is frequently used in hot environments, such as rave parties. Studies in laboratory animals have shown that ambient temperature can alter the behavioral and neurochemical effects of MDMA. To examine the influence of ambient temperature on the relative reinforcing strength of MDMA and reinstatement of behavior previously maintained by MDMA is the...

Hallucinogen-like effects of N,N-dipropyltryptamine (DPT): possible mediation by serotonin 5-HT1A and 5-HT2A receptors in rodents.

Pharmacology, Biochemistry, and Behavior January 2008 William E Fantegrossi, Chad J Reissig, Elyse B Katz et al.

N,N-dipropyltryptamine (DPT) is a synthetic tryptamine hallucinogen which has been used psychotherapeutically in humans, but has been studied preclinically only rarely. In the present studies, DPT was tested in a drug-elicited head-twitch assay in mice, and in rats trained to discriminate lysergic acid diethylamide (LSD), N,N-dimethyl-4-phosphoryloxytryptamine (psilocybin), or...

Religion et connaissance

Intellectica. Revue de l'Association pour la Recherche Cognitive 2008 Eric Gans

Religion and Knowledge. Our understanding of the contribution of religious revelation to fundamental anthropological self-consciousness is clarified by Derrida’s remark that every linguistic communication involves an “ act of faith” independent of any particular belief. But this faith is understandable only within the framework of a hypothesis that explains the origin of the human capacity to...

Buddha's Brain: Neuroplasticity and Meditation [In the Spotlight]

IEEE Signal Processing Magazine 2008 Richard J. Davidson, Antoine Lutz 282 citations

The term neuroplasticity is used to describe the brain changes that occur in response to experience. This article examines the changes in the brain that occur during different styles of meditation practice.

Psychotherapeutic factors of naturally occurring long-term meditation

cIRcle (University of British Columbia) 2008 Scott E. Lawrance

Various forms of meditation are being used by an increasing number of people in North America. Practiced both within the context of an overarching spiritual path and as a self-regulation strategy, meditation is sometimes a supplement to traditional forms of psychotherapy. At other times, meditation, as part of a spiritual practice, is used as an alternative approach to mental health and...

The phenomenology of the psychotic break and Huxley's trip: substance use and the onset of psychosis.

Psychopathology 2008 Barnaby Nelson, Louis Sass 24 citations

While considerable research attention has been devoted to the causal relationship between substance use and psychosis, the phenomenology of the association between the two has largely been ignored. This is a significant shortcoming, because it blinds researchers to the possibility that there may be elements of the subjective experience of substance use and psychosis that contribute to their...

Neuropsychotoxicity of abused drugs: molecular and neural mechanisms of neuropsychotoxicity induced by methamphetamine, 3,4-methylenedioxymethamphetamine (ecstasy), and 5-methoxy-N,N-diisopropyltryptamine (foxy).

Journal of Pharmacological Sciences 2008 Takayuki Nakagawa, Shuji Kaneko 44 citations

Psychostimulants including amphetamines and cocaine, opioids including morphine, and some recreational drugs share the ability to cause drug dependence and addiction. Although these drugs of abuse primarily act on distinct molecular targets, such as monoamine transporters or receptors, they finally converge to common neural pathways. Several lines of evidence suggest that their chronic...