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11 Citations (Scopus)

Acute and subchronic effects of bilastine (20 and 40 mg) and hydroxyzine (50 mg) on actual driving performance in healthy volunteers

Conen, S., Theunissen, E. L., Oers, A. C., Valiente, R. & Ramaekers, J. G., 1 Jan 2011, In : Journal of Psychopharmacology. 25, 11, p. 1517-1523

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)
40 Citations (Scopus)
Open Access

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., 25 Aug 2020, In : Journal of Psychopharmacology. 8 p., 0269881120940937.

Research output: Contribution to journalArticleAcademicpeer-review

Analysis of 4-fluoroamphetamine in cerumen after controlled oral application

Meier, S. I., Petzel-Witt, S., Schubert-Zsilavecz, M., de Sousa Fernandes Perna, E. B., Theunissen, E. L., Ramaekers, J. G. & Toennes, S. W., Jul 2020, In : Drug Testing and Analysis. 12, 7, p. 968-974 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

A placebo-controlled study to assess Standardized Field Sobriety Tests performance during alcohol and cannabis intoxication in heavy cannabis users and accuracy of point of collection testing devices for detecting THC in oral fluid

Bosker, W. M., Theunissen, E. L., Conen, S., Kuypers, K. P. C., Jeffery, W. K., Walls, H. C., Kauert, G. F., Toennes, S. W., Moeller, M. R. & Ramaekers, J. G., Oct 2012, In : Psychopharmacology. 223, 4, p. 439-446 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

A Randomized Trial on the Acute and Steady-State Effects of a New Antidepressant, Vortioxetine (Lu AA21004), on Actual Driving and Cognition

Theunissen, E., Street, D., Hojer, A. M., Vermeeren, A., van Oers, A. & Ramaekers, J. G., Jun 2013, In : Clinical Pharmacology & Therapeutics. 93, 6, p. 493-501 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

39 Citations (Scopus)

A single dose of cocaine enhances prospective memory performance

Hutten, N. RPW., Kuypers, K. PC., van Wel, J. HP., Theunissen, E. L., Toennes, S. W., Verkes, R-J. & Ramaekers, J. G., Aug 2018, In : Journal of Psychopharmacology. 32, 8, p. 883–892 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access

Ayahuasca enhances creative divergent thinking while decreasing conventional convergent thinking

Kuypers, K. P. C., Riba, J., de la Fuente Revenga, M., Barker, S., Theunissen, E. L. & Ramaekers, J. G., Sep 2016, In : Psychopharmacology. 233, 18, p. 3395–3403 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
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1 Citation (Scopus)
206 Downloads (Pure)

Binding occurs at early stages of processing in children and adults

Theunissen, E. L., Alain, C., Chevalier, H. & Taylor, M. J., 1 Jan 2001, In : Neuroreport. 12, 9, p. 1949-1954

Research output: Contribution to journalArticleAcademicpeer-review

Blockade of 5-HT(2) receptor selectively prevents MDMA-induced verbal memory impairment

van Wel, J. H. P., Kuypers, K. P. C., Theunissen, E. L., Bosker, W. M., Bakker, K. & Ramaekers, J. G., 1 Jan 2011, In : Neuropsychopharmacology. 36, 9, p. 1932-1939

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

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 journalArticleAcademicpeer-review

Brain reactivity to alcohol and cannabis marketing during sobriety and intoxication

de Sousa Fernandes Perna, E. B., Theunissen, E. L., Kuypers, K. P. C., Evers, E. A., Stiers, P., Toennes, S. W., Witteman, J., van Dalen, W. & Ramaekers, J. G., May 2017, In : Addiction Biology. 22, 3, p. 823–832 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

Cannabis and cocaine decrease cognitive impulse control and functional corticostriatal connectivity in drug users with low activity DBH genotypes

Ramaekers, J. G., van Wel, J. H., Spronk, D., Franke, B., Kenis, G., Toennes, S. W., Kuypers, K. P. C., Theunissen, E. L., Stiers, P. & Verkes, R. J., 2016, In : Brain Imaging and Behavior. 10, p. 1254–1263

Research output: Contribution to journalArticleAcademicpeer-review

Open Access

Cannabis and tolerance: acute drug impairment as a function of cannabis use history

Ramaekers, J. G., van Wel, J. H., Spronk, D. B., Toennes, S. W., Kuypers, K. P. C., Theunissen, E. L. & Verkes, R. J., 26 May 2016, In : Scientific Reports. 6, 8 p., 26843.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
2 Citations (Scopus)
186 Downloads (Pure)

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 journalArticleAcademicpeer-review

Cocaine enhances figural, but impairs verbal 'flexible' divergent thinking

Hutten, N. R. P. W., Steenbergen, L., Colzato, L. S., Hommel, B., Theunissen, E. L., Ramaekers, J. G. & Kuypers, K. P. C., Jul 2019, In : European Neuropsychopharmacology. 29, 7, p. 813-824 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

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

Ramaekers, J. G., Moeller, M. R., van Ruitenbeek, P., Theunissen, E. L., Schneider, E. & Kauert, G., 1 Jan 2006, In : Drug and Alcohol Dependence. 85, p. 114-22

Research output: Contribution to journalArticleAcademicpeer-review

140 Citations (Scopus)

Comparing the stimulant effects of the H1-antagonist fexofenadine with 2 psychostimulants, modafinil and methylphenidate

Theunissen, E. L., de la Asuncion Elvira, J., van den Bergh, D. & Ramaekers, J. G., 1 Jan 2009, In : Journal of Clinical Psychopharmacology. 29, 5, p. 439-443

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Comparison of cannabinoid pharmacokinetic properties in occasional and heavy users smoking a marijuana or placebo joint

Toennes, S. W., Ramaekers, J. G., Theunissen, E. L., Moeller, M. R. & Kauert, G. F., 1 Jan 2008, In : Journal of Analytical Toxicology. 32, 7, p. 470-477

Research output: Contribution to journalArticleAcademicpeer-review

47 Citations (Scopus)

Depressive mood ratings are reduced by MDMA in female polydrug ecstasy users homozygous for the l-allele of the serotonin transporter

Kuypers, K. P. C., de la Torre, R., Farre, M., Xicota, L., Perna, E. B. D. S. F., Theunissen, E. L. & Ramaekers, J. G., 18 Jan 2018, In : Scientific Reports. 8, 7 p., 1061.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access

Developmental changes in distinguishing concurrent auditory objects

Alain, C., Theunissen, E. L., Chevalier, H., Batty, M. & Taylor, M. J., 1 Jan 2003, In : Cognitive Brain Research. 16, 2, p. 210-218

Research output: Contribution to journalArticleAcademicpeer-review

20 Citations (Scopus)

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 journalArticleAcademicpeer-review

Open Access

Effects of acute MDMA intoxication on mood and impulsivity: role of the 5-HT(2) and 5-HT(1) receptors

van Wel, J. H. P., Kuypers, K. P. C., Theunissen, E. L., Bosker, W. M., Bakker, K. & Ramaekers, J. G., 10 Jul 2012, In : PLOS ONE. 7, 7, 8 p., 40187.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
20 Citations (Scopus)

Excretion of 4-fluoroamphetamine and three metabolites in urine after controlled oral ingestion

Toennes, S. W., Schneider, D., Pogoda, W., Paulke, A., Wunder, C., Theunissen, E. L., Perna, E. B. D. S. F. & Ramaekers, J. G., 3 Feb 2020, In : Journal of Pharmaceutical and Biomedical Analysis. 179, 8 p., 113008.

Research output: Contribution to journalArticleAcademicpeer-review

Excretion of metabolites of the synthetic cannabinoid JWH-018 in urine after controlled inhalation

Toennes, S. W., Geraths, A., Pogoda, W., Paulke, A., Wunder, C., Theunissen, E. L. & Ramaekers, J. G., 20 Feb 2018, In : Journal of Pharmaceutical and Biomedical Analysis. 150, p. 162-168 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

High-potency marijuana impairs executive function and inhibitory motor control

Ramaekers, J. G., Kauert, G., van Ruitenbeek, P., Theunissen, E. L., Schneider, E. & Moeller, M. R., 1 Jan 2006, In : Neuropsychopharmacology. 31, p. 2296-303

Research output: Contribution to journalArticleAcademicpeer-review

151 Citations (Scopus)

Influence of ethanol on cannabinoid pharmacokinetic parameters in chronic users

Toennes, S. W., Schneider, K., Kauert, G., Wunder, C., Moeller, M. R., Theunissen, E. L. & Ramaekers, J. G., 1 Jan 2011, In : Analytical and Bioanalytical Chemistry. 400, 1, p. 145-152

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Influence of Ethanol on the Pharmacokinetic Properties of (9)-Tetrahydrocannabinol in Oral Fluid

Toennes, S. W., Schneider, K., Wunder, C., Kauert, G. F., Moeller, M. R., Theunissen, E. L. & Ramaekers, J. G., Apr 2013, In : Journal of Analytical Toxicology. 37, 3, p. 152-158 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Lack of effects between rupatadine 10 mg and placebo on actual driving performance of healthy volunteers

Vuurman, E. F. P. M., Theunissen, E. L., van Oers, A. C. M., van Leeuwen, C. J. & Jolles, J., 1 Jan 2007, In : Human Psychopharmacology-Clinical and Experimental. 22, 5, p. 289-297

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
29 Citations (Scopus)
256 Downloads (Pure)

MDMA, cannabis, and cocaine produce acute dissociative symptoms

van Heugten-Van der Kloet, D., Giesbrecht, T., van Wel, J., Bosker, W. M., Kuypers, K. P. C., Theunissen, E. L., Spronk, D. B., Verkes, R. J., Merckelbach, H. & Ramaekers, J. G., 30 Aug 2015, In : Psychiatry Research. 228, 3, p. 907-912 6 p.

Research output: Contribution to journalArticleAcademicpeer-review

Medicinal Delta(9)-tetrahydrocannabinol (dronabinol) impairs on-the-road driving performance of occasional and heavy cannabis users but is not detected in Standard Field Sobriety Tests

Bosker, W. M., Kuypers, K. P. C., Theunissen, E. L., Surinx, A., Blankespoor, R. J., Skopp, G., Jeffery, W. K., Walls, H. C., van Leeuwen, C. J. & Ramaekers, J. G., Oct 2012, In : Addiction. 107, 10, p. 1837-1844 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)

Memory and mood during MDMA intoxication, with and without memantine pretreatment

de Sousa Fernandes Perna, E. B., Theunissen, E. L., Kuypers, K. P. C., Heckman, P., de la Torre, R., Farre, M. & Ramaekers, J. G., Dec 2014, In : Neuropharmacology. 87, p. 198-205 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Mephedrone and Alcohol Interactions in Humans

Papaseit, E., Pérez-Mañá, C., de Sousa Fernandes Perna, E. B., Olesti, E., Mateus, J., Kuypers, K. P. C., Theunissen, E. L., Fonseca, F., Torrens, M., Ramaekers, J. G., de la Torre, R. & Farré, M., 28 Jan 2020, In : Frontiers in Pharmacology. 10, 17 p., 1588.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access

Methylphenidate reduces functional connectivity of nucleus accumbens in brain reward circuit

Ramaekers, J. G., Evers, E. A., Theunissen, E. L., Kuypers, K. P. C., Goulas, A. & Stiers, P., Sep 2013, In : Psychopharmacology. 229, 2, p. 219-226 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

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

Ramaekers, J. G., Kauert, G., Theunissen, E. L., Toennes, S. W. & Moeller, M. R., 1 Jan 2009, In : Journal of Psychopharmacology. 23, 3, p. 266-277

Research output: Contribution to journalArticleAcademicpeer-review

124 Citations (Scopus)

Neurocognitive performance following acute mephedrone administration, with and without alcohol

de Sousa Fernandes Perna, E. B., Papaseit, E., Pérez-Mañá, C., Mateus, J., Theunissen, E. L., Kuypers, K. P. C., de la Torre, R., Farré, M. & Ramaekers, J. G., Dec 2016, In : Journal of Psychopharmacology. 30, 12, p. 1305–1312 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Neurophysiological functioning of occasional and heavy cannabis users during THC intoxication

Theunissen, E., Kauert, G. F., Toennes, S. W., Moeller, M. R., Sambeth, A., Blanchard, M. M. & Ramaekers, J., 1 Jan 2012, In : Psychopharmacology. 220, 2, p. 341-350

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)

On-the-road driving performance after use of the antihistamines mequitazine and l-mequitazine, alone and with alcohol

van der Sluiszen, N. N. J. J. M., Vermeeren, A., Jongen, S., Theunissen, E. L., van Oers, A. C. M., Van Leeuwen, C. J., Maret, A., Desforges, C., Delarue, A. & Ramaekers, J. G., Sep 2016, In : Psychopharmacology. 233, 18, p. 3461–3469 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
1 Citation (Scopus)
184 Downloads (Pure)

Pharmacokinetic properties of 4-fluoroamphetamine in serum and oral fluid after oral ingestion

Toennes, S. W., Schneider, D., Pogoda, W., Paulke, A., Wunder, C., Theunissen, E. L., Kuypers, K. P. C., de Sousa Fernandes Perna, E. & Ramaekers, J. G., Jul 2019, In : Drug Testing and Analysis. 11, 7, p. 1028-1034 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

Pharmacokinetic properties of delta9-tetrahydrocannabinol in oral fluid of occasional and chronic users

Toennes, S. W., Ramaekers, J. G., Theunissen, E. L., Moeller, M. R. & Kauert, G. F., May 2010, In : Journal of Analytical Toxicology. 34, 4, p. 216-221 6 p.

Research output: Contribution to journalArticleAcademicpeer-review

Pharmacokinetic properties of the synthetic cannabinoid JWH-018 and of its metabolites in serum after inhalation

Toennes, S. W., Geraths, A., Pogoda, W., Paulke, A., Wunder, C., Theunissen, E. L. & Ramaekers, J. G., 5 Jun 2017, In : Journal of Pharmaceutical and Biomedical Analysis. 140, p. 215-222 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

Pharmacokinetic properties of the synthetic cannabinoid JWH-018 in oral fluid after inhalation

Toennes, S. W., Geraths, A., Pogoda, W., Paulke, A., Wunder, C., Theunissen, E. L. & Ramaekers, J. G., Apr 2018, In : Drug Testing and Analysis. 10, 4, p. 644-650 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

Psychedelic symptoms of cannabis and cocaine use as a function of trait impulsivity

van Wel, J. H. P., Spronk, D. B., Kuypers, K. P. C., Theunissen, E. L., Toennes, S. W., Verkes, R. J. & Ramaekers, J. G., 1 Mar 2015, In : Journal of Psychopharmacology. 29, 3, p. 324-334 11 p.

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)