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Anxiety: all studies

Page 747 of 772: studies 7,461 to 7,470 of 7,715, newest first. Back to the anxiety overview

Research

Repeated MDMA (“Ecstasy”) exposure in adolescent male rats alters temperature regulation, spontaneous motor activity, attention, and serotonin transporter binding

Developmental Psychobiology 2005 Brian J. Piper, Joseph B. Fraiman, Jerrold S. Meyer 71 citations

Previous research in our laboratory found that repeated exposure of adolescent rats to 3,4-methylenedioxymethamphetamine (MDMA) impaired working memory and reduced anxiety. The present experiment extended these findings by investigating the physiological, behavioral, and neurotoxic effects of a modified MDMA treatment regimen. Male Sprague-Dawley rats received 5 mg/kg of MDMA hourly for a...

DOI: 10.1002/dev.20085 (opens in new tab) MDMA Ecstasy Habituation Serotonin transporter +3

A pilot study to examine the effects of a mindfulness-based stress-reduction and relaxation program on levels of stress hormones, physical functioning, and submaximal exercise responses.

The Journal of Alternative and Complementary Medicine October 2004 Jacalyn J. Robert-McComb, Anna M. Tacón, Patrck Randolph et al.

Stress has been cited as a causal factor in heart disease. The objective of this study was to examine the effects of an 8-week mindfulness-based stress-reduction program on the resting levels of stress hormones, physical functioning, and submaximal exercise responses in women with heart disease. Random selection with the numbers 1 and 2 were used to assign 18 women (60 +/-6.3 years old) with...

The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis.

Neuropsychopharmacology August 2004 Deepak Cyril D'Souza, Edward Perry, Lisa Macdougall et al.

Recent advances in the understanding of brain cannabinoid receptor function have renewed interest in the association between cannabinoid compounds and psychosis. In a 3-day, double-blind, randomized, and counterbalanced study, the behavioral, cognitive, and endocrine effects of 0, 2.5, and 5 mg intravenous delta-9-tetrahydrocannabinol (Delta-9-THC) were characterized in 22 healthy individuals,...

Does mindfulness decrease stress and foster empathy among nursing students?

Journal of Nursing Education July 2004 Amy E Beddoe, Susan O Murphy

This pilot study of baccalaureate nursing students explored the effects of an 8-week mindfulness-based stress reduction (MBSR) course on stress and empathy. The course was intended to provide students with tools to cope with personal and professional stress and to foster empathy through intrapersonal knowing. A convenience sample of 16 students participated in the course, used guided meditation...

Psychological and physiological characteristics of a proposed object-referral/self-referral continuum of self-awareness.

Consciousness and Cognition June 2004 Frederick Travis, Alarik Arenander, David DuBois

This research extends and confirms recent brainwave findings that distinguished an individual's sense-of-self along an Object-referral/Self-referral Continuum of self-awareness. Subjects were interviewed and were given tests measuring inner/outer orientation, moral reasoning, anxiety, and personality. Scores on the psychological tests were factor analyzed. The first unrotated PCA component of...

Cannabis use and risk of psychosis: an etiological link?

Epidemiologia e Psichiatria Sociale June 1, 2004 Helene Verdoux, Marie Tournier

SummaryObjective – The nature of the link between cannabis use and psychosis remains to be clarified. Method – The paper reviews the evidence suggesting that cannabis may be a risk factor for psychosis onset. Results – Cross-sectional and retro- spective epidemiological studies show that individuals with psychosis use cannabis more often than other individuals in the gener- al population. It...

Cannabis abuse and the course of schizophrenia

Cambridge University Press eBooks May 27, 2004 Don H. Linszen, Bart D. Peters, Lieuwe de Haan 9 citations

As detailed elsewhere in this book (Chapter 3), cannabis has been used for centuries to produce euphoria and relaxation as desired mental effects. However, adverse effects of intoxication with cannabis include anxiety and panic (Thomas, 1996; Reilly et al. , 1998), depression (Bovasso, 2001; Patton et al. , 2002: see Chapter 4), and impairment in certain domains of cognitive function (see...

The relationship of nightmare frequency and nightmare distress to well‐being

Journal of Sleep Research May 26, 2004 Mark Blagrove, Laura Boyd Farmer, E. R. L. Williams 215 citations

Nightmares can be defined as very disturbing dreams, the events or emotions of which cause the dreamer to wake up. In contrast, unpleasant dreams can be defined in terms of a negative emotional rating of a dream, irrespective of whether or not the emotions or events of the dream woke the dreamer. This study addresses whether frequency of unpleasant dreams is a better index of low well-being...

Acute psychological and physiological effects of psilocybin in healthy humans: a double-blind, placebo-controlled dose?effect study

Psychopharmacology March 1, 2004 Felix Hasler, Ulrike Grimberg, Marco A. Benz et al. 458 citations

RationaleSerotonin (5-Hydroxytryptamine, 5-HT) receptors play an important role in perception, affect regulation and attention. Pharmacological challenge with the 5-HT(2A) agonist psilocybin (PY) is useful in studying the neurobiological basis of cognition and consciousness.ObjectiveInvestigation of dose-dependent effects of PY on psycho(patho)logical and physiological parameters.MethodsEight...