Ley L

Department of Clinical Research, Division of Clinical Pharmacology & Toxicology, Psychopharmacology Research, University Hospital Basel, and University of Basel, Basel, Switzerland.

25 papers · 2 preprints · ORCID

ArticlePsilocybin

Integrating the Mystical Experience Questionnaire Into a Broader Psychometric Framework: English Validation of the Psychedelic Experience Scale and Comparison of Psilocybin and LSD Sessions Across Two Controlled Settings.

Stocker K, Hartmann M, Barrett FS +6

Europe PMC2026
ArticleLSD

Neuroplastic white matter changes in patients with major depression following lysergic acid diethylamide treatment.

Avram M, Menegaux A, Müller F +7

Europe PMC2026
PreprintPsilocybin

Psychedelics distinctly alter brain entropy and complexity compared to psychostimulants

Larsen K, Fisher PM, McCulloch DE +11

Europe PMC2026
ArticlePsilocybin

The 3D-ASCr scale: A revalidation of the core dimensions of the Altered States of Consciousness Rating Scale 5D(11)-ASC for psychedelic research.

Stocker K, Hartmann M, Schmid Y +10

Europe PMC2026
ArticleMescaline

Pharmacokinetics, Pharmacodynamics, and Urinary Recovery of Oral Mescaline Hydrochloride in Healthy Participants.

Mueller L, Klaiber A, Ley L +5

Europe PMC2025
ArticleLSD

Efficacy and safety of low- versus high-dose-LSD-assisted therapy in patients with major depression: A randomized trial.

Müller F, Zaczek H, Becker AM +8

Europe PMC2025
ArticlePsilocybin

Motivation and retrospective appraisal of psychedelic study participation: a qualitative study in healthy volunteers.

Ley L, Liechti ME, Becker AM +6

Europe PMC2025
ArticleMescaline

Safety pharmacology of acute mescaline administration in healthy participants.

Klaiber A, Humbert-Droz M, Ley L +2

Europe PMC2024
ArticleMDMA

Large-scale brain connectivity changes following the administration of lysergic acid diethylamide, d-amphetamine, and 3,4-methylenedioxyamphetamine.

Avram M, Fortea L, Wollner L +10

Europe PMC2025
ArticleLSD

Pharmacological and non-pharmacological predictors of the LSD experience in healthy participants.

Vizeli P, Studerus E, Holze F +8

Europe PMC2024
ArticlePsilocybin

Safety pharmacology of acute psilocybin administration in healthy participants.

Straumann I, Holze F, Becker AM +3

Europe PMC2024
ArticlePsilocybin

The revival of the psychedelic experience scale: Revealing its extended-mystical, visual, and distressing experiential spectrum with LSD and psilocybin studies.

Stocker K, Hartmann M, Ley L +3

Europe PMC2024
ArticleMDMA

Effective Connectivity of Thalamocortical Interactions Following d-Amphetamine, LSD, and MDMA Administration.

Avram M, Müller F, Preller KH +8

Europe PMC2024
ArticleMDMA

Acute effects of MDMA and LSD co-administration in a double-blind placebo-controlled study in healthy participants.

Straumann I, Ley L, Holze F +7

Europe PMC2023
ArticlePsilocybin

Comparative acute effects of mescaline, lysergic acid diethylamide, and psilocybin in a randomized, double-blind, placebo-controlled cross-over study in healthy participants.

Ley L, Holze F, Arikci D +11

Europe PMC2023
ArticleDMT

Acute effects of intravenous DMT in a randomized placebo-controlled study in healthy participants.

Vogt SB, Ley L, Erne L +12

Europe PMC2023
ArticleLSD

The effect of lysergic acid diethylamide (LSD) on whole-brain functional and effective connectivity.

Bedford P, Hauke DJ, Wang Z +9

Europe PMC2023
ArticleDMT

Liquid chromatography-tandem mass spectrometry method for the bioanalysis of N,N-dimethyltryptamine (DMT) and its metabolites DMT-N-oxide and indole-3-acetic acid in human plasma.

Luethi D, Kolaczynska KE, Vogt SB +4

Europe PMC2022
PreprintLSD

The effect of lysergic acid diethylamide (LSD) on whole-brain functional and effective connectivity

Bedford P, Hauke DJ, Wang Z +9

Europe PMC2022
ArticleMescaline

Development and validation of an LC-MS/MS method for the quantification of mescaline and major metabolites in human plasma.

Thomann J, Ley L, Klaiber A +2

Europe PMC2022
ArticleMDMA

Characterizing Thalamocortical (Dys)connectivity Following D-Amphetamine, LSD, and MDMA Administration.

Avram M, Müller F, Rogg H +7

Europe PMC2022
ArticlePsilocybin

Direct comparison of the acute effects of lysergic acid diethylamide and psilocybin in a double-blind placebo-controlled study in healthy subjects.

Holze F, Ley L, Müller F +10

Europe PMC2022
ArticlePsilocybin

Flashback phenomena after administration of LSD and psilocybin in controlled studies with healthy participants.

Müller F, Kraus E, Holze F +6

Europe PMC2022
ArticleMDMA

Prediction of MDMA response in healthy humans: a pooled analysis of placebo-controlled studies.

Studerus E, Vizeli P, Harder S +2

Europe PMC2021
ArticleMDMA

MDMA-induced changes in within-network connectivity contradict the specificity of these alterations for the effects of serotonergic hallucinogens.

Müller F, Holze F, Dolder P +5

Europe PMC2021
ArticleLSD

Acute dose-dependent effects of lysergic acid diethylamide in a double-blind placebo-controlled study in healthy subjects.

Holze F, Vizeli P, Ley L +8

Europe PMC2021
ArticleMDMA

Distinct acute effects of LSD, MDMA, and D-amphetamine in healthy subjects.

Holze F, Vizeli P, Müller F +6

Europe PMC2020