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Johannes G. Ramaekers

Johannes G. Ramaekers

D-Index & Metrics

Psychology

D-Index
75
Citations
17141
World Ranking
1814
National Ranking
104

Overview

Johannes G. Ramaekers is affiliated with Maastricht University in the Netherlands. Their research predominantly spans the fields of psychology and neuroscience, with specific focus on clinical psychology, cellular and molecular neuroscience, pharmacology, cognitive neuroscience, and experimental and cognitive psychology.

The primary themes in their work include:

  • Psychedelics and Drug Studies
  • Neurotransmitter Receptor Influence on Behavior
  • Chemical Synthesis and Alkaloids
  • Cannabis and Cannabinoid Research
  • Biochemical Analysis and Sensing Techniques
  • Forensic Toxicology and Drug Analysis
  • Sleep and Work-Related Fatigue

Ramaekers has contributed numerous publications to a range of scientific journals. Frequent publication venues include:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • European Neuropsychopharmacology
  • Psychopharmacology
  • Journal of Psychopharmacology
  • Frontiers in Psychology

Among their recent papers are:

  • "Me, myself, bye: regional alterations in glutamate and the experience of ego dissolution with psilocybin" (2020, Neuropsychopharmacology)
  • "Effect of Cannabidiol and Δ9-Tetrahydrocannabinol on Driving Performance" (2020, JAMA)
  • "Low Doses of LSD Acutely Increase BDNF Blood Plasma Levels in Healthy Volunteers" (2020, ACS Pharmacology & Translational Science)
  • "Spontaneous and deliberate creative cognition during and after psilocybin exposure" (2021, Translational Psychiatry)
  • "Mood and cognition after administration of low LSD doses in healthy volunteers: A placebo controlled dose-effect finding study" (2020, European Neuropsychopharmacology)

The scientist collaborates frequently with a set of co-authors, including:

  • Natasha L. Mason
  • Kim P. C. Kuypers
  • Eef L. Theunissen
  • Johannes T. Reckweg
  • Stefan W. Toennes

Best Publications

  • Dose related risk of motor vehicle crashes after cannabis use

    J G Ramaekers;G Berghaus;M van Laar;Olaf Heino Drummer

  • High-Potency Marijuana Impairs Executive Function and Inhibitory Motor Control

    Johannes G Ramaekers;Gerhold Kauert;Peter van Ruitenbeek;Eef L Theunissen

  • Neurocognitive performance during acute THC intoxication in heavy and occasional cannabis users

    Johannes Gerardus Ramaekers;G. Kauert;E. Theunissen;Stefan W. Toennes

  • Marijuana, alcohol and actual driving performance

    Johannes Gerardus Ramaekers;H. W. J. Robbe;J. F. O'Hanlon

  • An Experimental Study of Catechol-O-Methyltransferase Val158Met Moderation of delta-9-tetrahydrocannabinol-induced Effects on Psychosis and Cognition

    Cecile Henquet;Araceli Rosa;Lydia Krabbendam;Sergi Papiol

  • Cognition and motor control as a function of Delta9-THC concentration in serum and oral fluid: limits of impairment.

    J.G. Ramaekers;M.R. Moeller;P. van Ruitenbeek;E.L. Theunissen

  • Antidepressants and Driver Impairment: Empirical Evidence From a Standard On-the-Road Test.

    Johannes Gerardus Ramaekers

  • Serotonin and human cognitive performance.

    J. A.J. Schmitt;M. Wingen;J. G. Ramaekers;E. A.T. Evers

  • Characterizing the cognitive effects of cocaine: A comprehensive review

    Desirée B. Spronk;Janelle H.P. van Wel;Johannes G. Ramaekers;Robbert J. Verkes;Robbert J. Verkes

  • Developing Limits for Driving Under Cannabis

    Franjo Grotenhermen;Gero Leson;Gunter Berghaus;Olaf Heino Drummer

  • Effects of loratadine and cetirizine on actual driving and psychometric test performance, and EEG during driving.

    Johannes Gerardus Ramaekers;M. M. Uiterwijk;J. F. O'Hanlon

  • Circulating microRNAs as potential biomarkers for psychiatric and neurodegenerative disorders.

    M.M.J. van den Berg;J. Krauskopf;J.G. Ramaekers;J.C.S. Kleinjans

  • Me, myself, bye: regional alterations in glutamate and the experience of ego dissolution with psilocybin

    N. L. Mason;K. P. C. Kuypers;F. Müller;F. Müller;J. Reckweg

  • Antihistamine effects on actual driving performance in a standard test: a summary of Dutch experience, 1989‐94

    J. F. O'Hanlon;Johannes Gerardus Ramaekers

  • Sub-acute and long-term effects of ayahuasca on affect and cognitive thinking style and their association with ego dissolution

    M. V. Uthaug;K. van Oorsouw;K. P. C. Kuypers;M. van Boxtel

  • Ayahuasca enhances creative divergent thinking while decreasing conventional convergent thinking

    Kim Kuypers;J Riba;M de la Fuente Revenga;S Barker

  • 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

    M. V. Uthaug;R. Lancelotta;K. van Oorsouw;K. P. C. Kuypers

  • Tolerance and cross-tolerance to neurocognitive effects of THC and alcohol in heavy cannabis users

    Johannes Gerardus Ramaekers;Eef L. Theunissen;Marjolein de Brouwer;Stefan W. Toennes

  • Cannabidiol (CBD) content in vaporized cannabis does not prevent tetrahydrocannabinol (THC)-induced impairment of driving and cognition

    Thomas R. Arkell;Nicholas Lintzeris;Richard C. Kevin;Johannes G. Ramaekers

  • Acute Effects of 3,4-Methylenedioxymethamphetamine (MDMA) on Behavioral Measures of Impulsivity: Alone and in Combination with Alcohol

    Johannes Gerardus Ramaekers;Kim P. C. Kuypers

  • On-the-road driving performance the morning after bedtime administration of lemborexant in healthy adult and elderly volunteers

    Annemiek Vermeeren;Stefan Jongen;Patricia Murphy;Margaret Moline

Frequent Co-Authors

Eef L. Theunissen
Eef L. Theunissen Maastricht University
Kim P. C. Kuypers
Kim P. C. Kuypers Maastricht University
Wim J. Riedel
Wim J. Riedel Maastricht University
Arjan Blokland
Arjan Blokland Maastricht University
Robbert-Jan Verkes
Robbert-Jan Verkes Radboud University
Barbara Franke
Barbara Franke Radboud University
Dick de Waard
Dick de Waard University of Groningen
Ellen R.A. de Bruijn
Ellen R.A. de Bruijn Leiden University
W. van den Brink
W. van den Brink University of Amsterdam
Roshan Cools
Roshan Cools Radboud University

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