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Research output
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An international mega-analysis of psychedelic drug effects on brain circuit function
Girn, M., Doss, M. K., Roseman, L., Preller, K. H., Palhano-Fontes, F., Pasquini, L., Barrett, F. S., Mallaroni, P., Mason, N. L., Timmermann, C., McCulloch, D. E., Fisher, P. M., Winston, B. S., Moujaes, F., Muller, F., Liechti, M. E., Vollenweider, F. X., Ramaekers, J. G., Kuypers, K. & Araujo, D. B. & 7 others, , Apr 2026, In: Nature Medicine. 32, 4, p. 1543-1554 12 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access -
Comparative effects of ayahuasca and breathwork on self-reported cognitive flexibility, emotion regulation, positive affect, and sleep quality
Rossi, G. N., Khubsing, R. S. I., Haijen, E. C. H. M., Mason, N. L., van Leerdam, M., dos Santos, R. G., Hallak, J. E. C. & Kuypers, K. P. C., Mar 2026, In: Journal of Psychedelic Studies. 10, 1, p. 75-87 13 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access -
Preliminary Findings From An Ongoing Survey On Self-Administered Psilocybin Microdosing Practices And Effects
Kuypers, K., 1 Jan 2026, In: Neuropsychopharmacology. 51, SUPPL1, 1 p.Research output: Contribution to journal › Conference Abstract/Poster in journal › Academic
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Subjective and neurocognitive profiling of clinical doses of 3,4-methylenedioxymethamphetamine (MDMA) in healthy volunteers: implications for therapeutic use
Ramaekers, J. G., Kuypers, K. P. C. & Vollenweider, F. X., 8 Apr 2026, (E-pub ahead of print) In: Molecular Psychiatry. 12 p.Research output: Contribution to journal › (Systematic) Review article › peer-review
Open Access -
An exploratory study of the safety profile and neurocognitive function after single doses of mitragynine in humans
Prevete, E., Theunissen, E. L., Kuypers, K. P. C., Paci, R., Reckweg, J. T., Cavarra, M., Toennes, S. W., Ritscher, S., Bersani, G., Corazza, O., Pasquini, M. & Ramaekers, J. G., Jun 2025, In: Psychopharmacology. 242, 6, p. 1363-1376 14 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access
Datasets
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Intoxication by a synthetic cannabinoid (JWH-018) causes cognitive and psychomotor impairment in recreational cannabis users
Theunissen, E. (Creator), Reckweg, J. (Creator), Hutten, N. (Creator), Kuypers, K. (Creator), Toennes, S. W. (Creator), Neukamm, M. A. (Creator), Halter, S. (Creator) & Ramaekers, J. (Creator), DataverseNL, 4 Oct 2021
DOI: 10.34894/8ugj0a, https://dataverse.nl/citation?persistentId=doi:10.34894/8UGJ0A
Dataset/Software: Dataset
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Psychotomimetic symptoms after a moderate dose of a synthetic cannabinoid (JWH-018): implications for psychosis
Theunissen, E. (Creator), Reckweg, J. (Creator), Hutten, N. (Creator), Kuypers, K. (Creator), Toennes, S. W. (Creator), Neukamm, M. A. (Creator), Halter, S. (Creator) & Ramaekers, J. (Creator), DataverseNL, 4 Oct 2021
DOI: 10.34894/ayuyq1, https://dataverse.nl/citation?persistentId=doi:10.34894/AYUYQ1
Dataset/Software: Dataset
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Neurocognition and subjective experience following acute doses of the synthetic cannabinoid JWH-018: a phase 1, placebo-controlled, pilot study
Theunissen, E. L. (Creator), Hutten, N. R. P. W. (Contributor), Mason, N. L. (Contributor), Toennes, S. W. (Contributor), Kuypers, K. W. (Contributor), Sousa Fernandes Perna, E. B. D. (Contributor) & Ramaekers, J. G. (Contributor), DataverseNL, 27 Jan 2020
DOI: 10.34894/onlpht, https://doi.org/10.34894%2Fonlpht
Dataset/Software: Dataset
Press/Media
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Meer mentaal welzijn met een microdosis psychedelica bij het ontbijt?
12/01/24
1 Media contribution
Press/Media: Expert Comment › Popular
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Waarom onderzoeker Kim Kuyper razend enthousiast is over de inzet van partydrugs in de ggz
22/03/23
1 Media contribution
Press/Media: Expert Comment › Popular
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Microdosering: word je door kleine porties hallucinerende drugs een betere versie van jezelf? ‘Je doet alles met een bepaalde focus’
14/03/23
1 Media contribution
Press/Media: Expert Comment › Popular
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Podcast DOCS #108 : De Tripgeneratie
18/01/23
1 Media contribution
Press/Media: Expert Comment › Popular
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MindMed Initiates Phase 2a LSD Trial for the Treatment of Adult ADHD
2/11/21 → 20/12/21
186 items of Media coverage
Press/Media: Research › Popular