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Anxiety: all studies

Page 751 of 769: studies 7,501 to 7,510 of 7,689, newest first. Back to the anxiety overview

Research

Biological Aspects of Near-Death Experiences

Perspectives in biology and medicine September 1, 1998 Bruce Greyson 43 citations

BIOLOGICAL ASPECTS OF NEAR-DEATH EXPERIENCES BRUCE GREYSON* Near-death experiences (NDEs) are profound psychological events with transcendental or mystical elements typically occurring to individuals close to death or in situations of intense physical or emotional danger. Such experiences, once regarded as meaningless hallucinations, have become the subject of serious study by medical and other...

DOI: 10.1353/pbm.1998.0039 (opens in new tab) Jungian analytical psychology

THE EFFECTS OF 6-HYDROXYDOPAMINE LESION OF THE MEDIAL PREFRONTAL CORTEX ON PRE-PULSE INHIBITION, FOOD HOARDING, AND LOCOMOTOR ACTIVITY INTHE RAT

Behavioural Pharmacology August 1, 1998 L. Lacroix, Christian A. Heidbreder, J. Feldon

Synaptopathies (Fall, 2022) Synaptic neurotransmission lies at the heart of nervous system's functioning. Clearly then, alterations in synaptic signal transduction can lead to a variety of neural disorders. Perhaps the most widely known of these disorders include certain movement disorders and myasthenia gravis. More recent interest in synaptic dysfunction has focused on neurodevelopmental and...

ACTH and beta-endorphin in transcendental meditation.

Physiology & Behavior June 1, 1998 J R Infante, F Peran, M Martinez et al.

We have evaluated the effect of Transcendental Meditation (TM) on the hypothalamo-hypophyseal-adrenal axis diurnal rhythms through the determination of hormone levels. Blood samples were taken at 0900 hours. and at 2000 hours. These samples were taken from 18 healthy volunteers who regularly practice TM and from nine healthy non-meditators. Cortisol, beta-endorphin, and adrenocorticotropic...

In Vivo Ibogaine Blockade and In Vitro PKC Action of Cocainea.

Annals of the New York Academy of Sciences May 1, 1998 Emmanuel S Onaivi, Syed F. Ali, Amitabha Chakrabarti 13 citations

Ibogaine may have antiaddiction potential against alcohol, psychostimulant and opiate abuse, but its mechanism of action is unclear. Ibogaine, however, has been demonstrated in numerous studies to have effects in multiple central nervous system (CNS) neurotransmitters systems. We are using in vitro and in vivo systems to study the effects of cocaine and whether these effects can be blocked by...

Strange Encounters: Dreams and Nightmares of High School Students in Papua New Guinea1

Oceania March 1, 1998 A. L. Epstein 6 citations

ABSTRACT The material for this paper is drawn from essays written, as part of their ordinary class work, by a group of Papua New Guinea High School students, under the title ‘Recently I had a Dream’. The paper offers a content analysis of this material. The categories employed to present and analyse the data are rooted in the assumption that a dream may be likened to the performance of a play...

The Role of Culture, Violence, and Personal Factors Affecting Dream Content

Journal of Cross-Cultural Psychology March 1, 1998 Raija-Leena Punamäki, Marja Joustie

The impact of culture, violent environment, gender, and age on dream content was studied among 205 children in three groups: a Palestinian group living in a violent environment (n = 80), and Palestinian (n = 45) and Finnish (n = 80) groups living in peaceful areas. They were matched for age (7-12) and gender. The method used was a 7-day dream diary in which the participants recorded the dreams...

Limited utility of ICD-10 and DSM-IV classification of dissociative and conversion disorders in India.

Acta Psychiatrica Scandinavica March 1997 P J Alexander, S Joseph, A Das

Studies of psychiatric out-patients from India have found that diagnosis of some of the subcategories of the dissociative and conversion disorders of the ICD and DSM classificatory systems are rarely made in this setting. Moreover, it was found that a significant percentage of patients seen in psychiatric practice may not fit into the defined subcategories of dissociative (conversion) disorders...

MDMA("Ecstasy")-Konsum - ein Überblick zu psychiatrischen und medizinischen Folgen

Fortschritte der Neurologie · Psychiatrie February 1, 1997 Rainer Thomasius, Margit Schmolke, Dana Kraus

Epidemiological research and Substance Abuse Warning Systems point to a sharp increase in the use of "Ecstasy" (MDMA), as well as to structural changes in the drug scene in and outside Europe. For some consumers, "Ecstasy" opens the door to the abuse of other illegal substances. Since the mid-eighties psychiatric complications and consequences of the abuse of MDMA have been reported in at least...

Acute effects of ketamine in the holeboard, the elevated‐plus maze, and the social interaction test in Wistar rats

Depression and Anxiety 1997 J. Silvestre, R. Nadal, M. Pallarés et al.

Although noncompetitive NMDA receptor antagonists have shown an anxiolyticlike profile in several studies, such effects have not been observed consistently. Previous studies with ketamine, a noncompetitive NMDA antagonist, have employed only shock tests of anxiety based on conflict procedures. In the present experiment, the effect of an acute low dose of ketamine (7 mg/kg) was examined in adult...

Response to commentaries on "The ketamine model of the near-death experience ..."

Journal of Near-Death Studies 1997 Karl Jansen 3 citations

The commentators on my paper raised several interesting is sues. Set and setting do influence drug effects, but they also influence near death experiences (NDEs). Some NDEs are very anxiety-generating, just like some ketamine experiences, though frightening NDEs have been ignored by most researchers. High frequency, compulsive ketamine use is rare. While dimethyltryptamine (DMT) may induce...