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J. G. Ramaekers

4 papers in the library · 472 citations · publishing 2006-2022

Papers

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Therapeutic effect of an ayahuasca analogue in clinically depressed patients: a longitudinal observational study.

Psychopharmacology January 24, 2022 Kim van Oorsouw, S. W. Toennes, J. G. Ramaekers 71 citations

RATIONALE: Studies have suggested mental health improvements following the use of the psychotropic plant concoction ayahuasca in non-clinical and clinical samples. OBJECTIVES: The present observational study assessed depressive symptomatology in 20 clinically depressed patients (symptom score > 13 on the Beck's Depression Inventory) before attendance of an ayahuasca ceremony and 1 month and 1...

A single inhalation of vapor from dried toad secretion containing 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) in a naturalistic setting is related to sustained enhancement of satisfaction with life, mindfulness-related capacities, and a decrement of psychopathological symptoms.

Psychopharmacology April 13, 2019 Malin V. Uthaug, R. Lancelotta, Kim van Oorsouw et al. 198 citations

Background: 5-methoxy-N,N-dimethyltryptamine (hereinafter referred to as 5-MeO-DMT) is a psychedelic substance found in the secretion from the parotoid glands of the Bufo alvarius toad. Inhalation of vapor from toad secretion containing 5-MeO-DMT has become popular in naturalistic settings as a treatment of mental health problems or as a means for spiritual exploration. However, knowledge of...

DOI: 10.1007/s00213-019-05236-w (opens in new tab) Full text (opens in new tab) Mental health Psychological health Emotional well-being Mental wellness +25

Stimulant effects of 3,4‐methylenedioxymethamphetamine (MDMA) 75 mg and methylphenidate 20 mg on actual driving during intoxication and withdrawal

Addiction August 8, 2006 J. G. Ramaekers, K. P. C. Kuypers, N. Samyn 90 citations

ABSTRACT Background 3,4‐methylenedioxymethamphetamine (MDMA) is currently one of the most popular drugs of abuse in Europe. Its increasing use over the last decade has led to concern regarding possible adverse effects on driving. The aims of the present study were to investigate the acute effects of MDMA on actual driving performance during the intoxication and withdrawal phase. Methods...

Cognitive function and mood in MDMA/THC users, THC users and non-drug using controls

Journal of Psychopharmacology March 1, 2006 C. T. J. Lamers, Antoine Bechara, Matthew Rizzo et al. 113 citations

Repeated ecstasy (MDMA) use is reported to impair cognition and cause increased feelings of depression and anxiety. Yet, many relevant studies have failed to control for use of drugs other than MDMA, especially marijuana (THC). To address these confounding effects we compared behavioural performance of 11 MDMA/THC users, 15 THC users and 15 non-drug users matched for age and intellect. We...