Natasha Mason

Research output

Research output per year 2018 2019 2021 2022 2022

• 36 Article
• 8 Conference Abstract/Poster in journal
• 4 Review article
• 1 Comment/Letter to the editor
• 1 More
  • 1 Doctoral Thesis

Research output per year

Research output per year

Search results

• 2022

  A Comparison of Acute Neurocognitive and Psychotomimetic Effects of a Synthetic Cannabinoid and Natural Cannabis at Psychotropic Dose Equivalence

  Theunissen, E. L., Kuypers, K. P. C., Mason, N. L. & Ramaekers, J. G., 19 May 2022, In: Frontiers in Psychiatry. 13, 14 p., 891811.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  2 Citations (Web of Science)

• Analgesic potential of macrodoses and microdoses of classical psychedelics in chronic pain sufferers: a population survey

  Bonnelle, V., Smith, W. J., Mason, N. L., Cavarra, M., Kryskow, P., Kuypers, K. P. C., Ramaekers, J. G. & Feilding, A., Dec 2022, In: British Journal of Pain. 16, 6, p. 619-631 13 p., 20494637221114962.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  49 Downloads (Pure)

• Cannabis Use and Neuroadaptation: A Call for Δ 9 -Tetrahydrocannabinol Challenge Studies

  Ramaekers, J. G., Theunissen, E. L., van Ruitenbeek, P. & Mason, N. L., 14 Apr 2022, In: Frontiers in Psychiatry. 13, p. 1-7 7 p., 870750.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

• Decreases in State and Trait Anxiety Post-psilocybin: A Naturalistic, Observational Study Among Retreat Attendees

  Kiraga, M. K., Kuypers, K. P. C., Uthaug, M. V., Ramaekers, J. G. & Mason, N. L., 7 Jul 2022, In: Frontiers in Psychiatry. 13, 15 p., 883869.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

• Functional brain connectomes reflect acute and chronic cannabis use

  Ramaekers, J. G., Mason, N. L., Toennes, S. W., Theunissen, E. L. & Amico, E., 14 Feb 2022, In: Scientific Reports. 12, 1, 12 p., 2449.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  5 Citations (Web of Science)

• LSD and creativity: Increased novelty and symbolic thinking, decreased utility and convergent thinking

  Wiessner, I., Falchi, M., Maia, L. O., Daldegan-Bueno, D., Palhano-Fontes, F., Mason, N. L., Ramaekers, J. G., Gross, M. E., Schooler, J. W., Feilding, A., Ribeiro, S., Araujo, D. B. & Tofoli, L. F., Mar 2022, In: Journal of Psychopharmacology. 36, 3, p. 348-359 12 p., 02698811211069113.

  Research output: Contribution to journal › Article › Academic › peer-review
  5 Citations (Web of Science)

• Metabolomics and integrated network analysis reveal roles of endocannabinoids and large neutral amino acid balance in the ayahuasca experience

  Madrid-Gambin, F., Gomez-Gomez, A., Busquets-Garcia, A., Haro, N., Marco, S., Mason, N. L., Reckweg, J. T., Mallaroni, P., Kloft, L., van Oorsouw, K., Toennes, S. W., de la Torre, R., Ramaekers, J. G. & Pozo, O. J., May 2022, In: Biomedicine & Pharmacotherapy. 149, 10 p., 112845.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  2 Citations (Web of Science)

• The use patterns of novel psychedelics: experiential fingerprints of substituted phenethylamines, tryptamines and lysergamides

  Mallaroni, P., Mason, N. L., Vinckenbosch, F. R. J. & Ramaekers, J. G., Jun 2022, In: Psychopharmacology. 239, 6, p. 1783-1796 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  2 Citations (Web of Science)
• 2021

  A low dose of lysergic acid diethylamide decreases pain perception in healthy volunteers

  Ramaekers, J. G., Hutten, N., Mason, N. L., Dolder, P., Theunissen, E. L., Holze, F., Liechti, M. E., Feilding, A. & Kuypers, K. P., Apr 2021, In: Journal of Psychopharmacology. 35, 4, p. 398-405 8 p., 0269881120940937.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  24 Citations (Web of Science)

• An experience with Holotropic Breathwork is associated with improvement in non-judgement and satisfaction with life while reducing symptoms of stress in a Czech-speaking population

  Uthaug, M. V., Mason, N. L., Havenith, M. N., Vancura, M. & Ramaekers, J. G., 1 Dec 2021, In: Journal of Psychedelic Studies. 5, 3, p. 176-189 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  1 Citation (Web of Science)

• A Phase 1, Dose-Ranging Study to Assess Safety and Psychoactive Effects of a Vaporized 5-Methoxy-N, N-Dimethyltryptamine Formulation (GH001) in Healthy Volunteers

  Reckweg, J., Mason, N. L., van Leeuwen, C., Toennes, S. W., Terwey, T. H. & Ramaekers, J. G., 25 Nov 2021, In: Frontiers in Pharmacology. 12, 12 p., 760671.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  7 Citations (Web of Science)

• A placebo-controlled study of the effects of ayahuasca, set and setting on mental health of participants in ayahuasca group retreats

  Uthaug, M. V., Mason, N. L., Toennes, S. W., Reckweg, J. T., de Sousa Fernandes Perna, E. B., Kuypers, K. P. C., van Oorsouw, K., Riba, J. & Ramaekers, J. G., Jul 2021, In: Psychopharmacology. 238, 7, p. 1899-1910 12 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  26 Citations (Web of Science)

• Low Doses of LSD Acutely Increase BDNF Blood Plasma Levels in Healthy Volunteers

  Hutten, N. R. P. W., Mason, N. L., Dolder, P. C., Theunissen, E. L., Holze, F., Liechti, M. E., Varghese, N., Eckert, A., Feilding, A., Ramaekers, J. G. & Kuypers, K. P. C., 9 Apr 2021, In: ACS Pharmacology & Translational Science. 4, 2, p. 461-466 6 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  42 Citations (Web of Science)

• Persisting Effects of Ayahuasca on Empathy, Creative Thinking, Decentering, Personality, and Well-Being

  Kiraga, M. K., Mason, N. L., Uthaug, M. V., van Oorsouw, K. I. M., Toennes, S. W., Ramaekers, J. G. & Kuypers, K. P. C., 1 Oct 2021, In: Frontiers in Pharmacology. 12, 14 p., 721537.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  6 Citations (Web of Science)

• Pharmacokinetics and pharmacodynamics of lysergic acid diethylamide microdoses in healthy participants

  Holze, F., Liechti, M. E., Hutten, N. R. P. W., Mason, N. L., Dolder, P. C., Theunissen, E. L., Duthaler, U., Feilding, A., Ramaekers, J. G. & Kuypers, K. P. C., Mar 2021, In: Clinical Pharmacology & Therapeutics. 109, 3, p. 658-666 9 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  14 Citations (Web of Science)

• Reduced responsiveness of the reward system is associated with tolerance to cannabis impairment in chronic users

  Mason, N. L., Theunissen, E. L., Hutten, N. R. P. W., Tse, D. H. Y., Toennes, S. W., Jansen, J. F. A., Stiers, P. & Ramaekers, J. G., Jan 2021, In: Addiction Biology. 26, 1, 9 p., e12870.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  20 Citations (Web of Science)

• Spontaneous and deliberate creative cognition during and after psilocybin exposure

  Mason, N. L., Kuypers, K. P. C., Reckweg, J. T., Muller, F., Tse, D. H. Y., Da Rios, B., Toennes, S. W., Stiers, P., Feilding, A. & Ramaekers, J. G., 8 Apr 2021, In: Translational Psychiatry. 11, 1, 13 p., 209.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  20 Citations (Web of Science)

• Sub-acute and long-term effects of ayahuasca on mental health and well-being in healthy ceremony attendants: A replication study

  Van Oorsouw, K. I., Uthaug, M. V., Mason, N. L., Broers, N. J. & Ramaekers, J. G., 15 Oct 2021, In: Journal of Psychedelic Studies. 5, 2, p. 103-113 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
• 2020

  Blunted highs: Pharmacodynamic and behavioral models of cannabis tolerance

  Ramaekers, J. G., Mason, N. L. & Theunissen, E. L., Jul 2020, In: European Neuropsychopharmacology. 36, p. 191-205 15 p.

  Research output: Contribution to journal › Article › Academic › peer-review
  24 Citations (Web of Science)

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

  Mason, N. L., Kuypers, K. P. C., Müller, F., Reckweg, J., Tse, D. H. Y., Toennes, S. W., Hutten, N. R. P. W., Jansen, J. F. A., Stiers, P., Feilding, A. & Ramaekers, J. G., Nov 2020, In: Neuropsychopharmacology. 45, 12, p. 2003-2011 9 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  68 Citations (Web of Science)

• Mood and cognition after administration of low LSD doses in healthy volunteers: A placebo controlled dose-effect finding study

  Hutten, N. R. P. W., Mason, N. L., Dolder, P. C., Theunissen, E. L., Holze, F., Liechti, M. E., Feilding, A., Ramaekers, J. G. & Kuypers, K. P. C., Dec 2020, In: European Neuropsychopharmacology. 41, p. 81-91 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  36 Citations (Web of Science)

• Reported effects of psychedelic use on those with low well-being given various emotional states and social contexts

  Mason, N. L., Dolder, P. C. & Kuypers, K. P. C., 2020, In: Drug Science, Policy and Law. 6, p. 1-11

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
• 2019

  A First-in-Man Study with 4-Fluoroamphetamine Demonstrates it Produces a Mild Psychedelic State

  Kuypers, K. P. C., De Sousa Fernandes Perna, E. B., Theunissen, E. L., Toennes, S. W., Mason, N. L., Hutten, N. R. P. W. & Ramaekers, J. G., 27 May 2019, In: Journal of Psychoactive Drugs. 51, 3, p. 225-235 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  5 Citations (Web of Science)

• 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

  Uthaug, M. V., Lancelotta, R., van Oorsouw, K., Kuypers, K. P. C., Mason, N., Rak, J., Šuláková, A., Jurok, R., Maryška, M., Kuchař, M., Páleníček, T., Riba, J. & Ramaekers, J. G., Sept 2019, In: Psychopharmacology. 236, 9, p. 2653–2666 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  68 Citations (Web of Science)

• Cannabis induced increase in striatal glutamate associated with loss of functional corticostriatal connectivity

  Mason, N. L., Theunissen, E. L., Hutten, N. R. P. W., Tse, D. H. Y., Toennes, S. W., Stiers, P. & Ramaekers, J. G., Dec 2019, In: European Neuropsychopharmacology. 29, 2, p. 247-256 10 p.

  Research output: Contribution to journal › Article › Academic › peer-review
  33 Citations (Web of Science)

• Motives and Side-Effects of Microdosing With Psychedelics Among Users

  Hutten, N. R. P. W., Mason, N. L., Dolder, P. C. & Kuypers, K. P. C., Jul 2019, In: International Journal of Neuropsychopharmacology. 22, 7, p. 426-434 9 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  49 Citations (Web of Science)

• Motives for Classical and Novel Psychoactive Substances Use in Psychedelic Polydrug Users

  Kettner, H., Mason, N. L. & Kuypers, K. P. C., 2019, In: Contemporary Drug Problems : a law quarterly. 46, 3, p. 304-320

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

• Neurocognition and subjective experience following acute doses of the synthetic cannabinoid JWH-018: responders versus nonresponders

  Theunissen, E. L., Hutten, N. R. P. W., Mason, N. L., Toennes, S. W., Kuypers, K. P. C. & Ramaekers, J. G., Mar 2019, In: Cannabis and cannabinoid research. 4, 1, p. 51-61 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  16 Citations (Web of Science)

• Self-Rated Effectiveness of Microdosing With Psychedelics for Mental and Physical Health Problems Among Microdosers

  Hutten, N. R. P. W., Mason, N. L., Dolder, P. C. & Kuypers, K. P. C., 13 Sept 2019, In: Frontiers in Psychiatry. 10, 9 p., 672.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  23 Citations (Web of Science)

• Sub-Acute Effects of Psilocybin on Empathy, Creative Thinking, and Subjective Well-Being

  Mason, N. L., Mischler, E., Uthaug, M. & Kuypers, K. P. C., 2019, In: Journal of Psychoactive Drugs. 51, 2, p. 123-134 12 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  57 Citations (Web of Science)
• 2018

  Drug liking and wanting, not impulsive action or reflection is increased by 4-fluoroamphetamine

  Kuypers, K. P. C., de Sousa Fernandes Perna, E. B., Dolder, P. C., Toennes, S. W., Theunissen, E. L., Mason, N. L., Hutten, N. R. P. W. & Ramaekers, J. G., Aug 2018, In: Psychopharmacology. 235, 8, p. 2349-2356 8 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  7 Citations (Web of Science)

• Independent elevation of peripheral oxytocin concentrations and reduction in cognitive empathy during 4-fluoroamphetamine intoxication

  Dolder, P. C., de Sousa Fernandes Perna, E. B., Mason, N. L., Hutten, N. R. P. W., Toennes, S. W., Theunissen, E. L., Ramaekers, J. G. & Kuypers, K. P. C., Nov 2018, In: Human Psychopharmacology-Clinical and Experimental. 33, 6, 7 p., 2680.

  Research output: Contribution to journal › Article › Academic › peer-review
  5 Citations (Web of Science)

• Mental health of a self-selected sample of psychedelic users and self-medication practices with psychedelics

  Mason, N. L. & Kuypers, K. P. C., 2018, In: Journal of Psychedelic Studies. 2, 1, p. 45–52

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

• Neurocognition and subjective experience following acute doses of the synthetic cannabinoid JWH-018: a phase 1, placebo-controlled, pilot study

  Theunissen, E. L., Hutten, N. R. P. W., Mason, N. L., Toennes, S. W., Kuypers, K. P. C., de Sousa Fernandes Perna, E. B. & Ramaekers, J. G., Jan 2018, In: British Journal of Pharmacology. 175, 1, p. 18-28 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  24 Citations (Web of Science)

• Safety Profile and Neurocognitive Function Following Acute 4-Fluoroamphetamine (4-FA) Administration in Humans

  Perna, E. B. D. S. F., Theunissen, E. L., Dolder, P. C., Mason, N. L., Hutten, N. R. P. W., Toennes, S. W., Kuypers, K. P. C. & Ramaekers, J. G., 6 Jul 2018, In: Frontiers in Pharmacology. 9, 11 p., 713.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  10 Citations (Web of Science)

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

  Uthaug, M. V., van Oorsouw, K., Kuypers, K. P. C., van Boxtel, M., Broers, N. J., Mason, N. L., Toennes, S. W., Riba, J. & Ramaekers, J. G., Oct 2018, In: Psychopharmacology. 235, 10, p. 2979–2989 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access
  95 Citations (Web of Science)