Johnson MW

Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

51 papers · ORCID

ArticlePsychedelics

Development of Japanese Versions of the 4-Item Mystical Experience Questionnaire and 7-Item Challenging Experience Questionnaire.

Umemura F, Kotajima-Murakami H, Strickland JC +3

Europe PMC2026
ArticlePsilocybin

Factors Associated with Intentions to Use Psilocybin for Mental Health in Relation to Psychotherapy, Psychiatric Medications, and Natural/Synthetic Options.

Meier BP, Lappas CM, Johnson MW

Europe PMC2026
ArticlePsilocybin

Psilocybin in the Treatment of Cocaine Use Disorder: A Randomized Clinical Trial.

Hendricks PS, Lappan SN, Shelton RC +8

Europe PMC2026
ArticlePsilocybin

Psilocybin or Nicotine Patch for Smoking Cessation: A Pilot Randomized Clinical Trial.

Johnson MW, Naudé GP, Hendricks PS +1

Europe PMC2026
ArticlePsilocybin

Effects of Psilocybin on Religious and Spiritual Attitudes and Behaviors in Clergy from Various Major World Religions.

Griffiths RR, Jesse R, Richards WA +4

Europe PMC2025
ArticlePsilocybin

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Subcutaneous RE104: A Double-Blind, Randomized, Single Ascending Dose Placebo-Controlled Study.

Ludbrook G, Bryson N, Taylor B +6

Europe PMC2025
ArticlePsilocybin

Adverse reactions among psychedelic users: Norwegian validation of the Challenging Experience Questionnaire.

Andersen KAA, Holmøy B, Kvam TM +1

Europe PMC2025
ArticlePsilocybin

Psychedelics and substance use disorder treatment.

DuPont CM, Johnson MW

Europe PMC2025
ArticlePsilocybin

A Field-Wide Review and Analysis of Study Materials Used in Psilocybin Trials: Assessment of Two Decades of Research.

Yaden DB, Graziosi M, Owen AM +39

Europe PMC2025
ArticlePsilocybin

Shame, Guilt and Psychedelic Experience: Results from a Prospective, Longitudinal Survey of Real-World Psilocybin Use.

Mathai DS, Roberts DE, Nayak SM +6

Europe PMC2026
ArticleMDMA

Psychedelic and MDMA-Related Adverse Effects-A Call for Action.

Simonsson O, Johnson MW, Hendricks PS

Europe PMC2024
ArticlePsilocybin

The Mystical Experience Questionnaire 4-Item and Challenging Experience Questionnaire 7-Item.

Strickland JC, Garcia-Romeu A, Johnson MW

Europe PMC2024
ArticlePsilocybin

IUPHAR-review: The integration of classic psychedelics into current substance use disorder treatment models.

Yaden DB, Berghella AP, Hendricks PS +6

Europe PMC2024
ArticlePsilocybin

Beliefs and Perceived Barriers Regarding Psychedelic-assisted Therapy in a Pilot Study of Service Members and Veterans With a History of Traumatic Brain Injury.

Gray JC, Murphy M, Carter SE +4

Europe PMC2023
ArticlePsilocybin

Naturalistic psilocybin use is associated with persisting improvements in mental health and wellbeing: results from a prospective, longitudinal survey.

Nayak SM, Jackson H, Sepeda ND +13

Europe PMC2023
ArticlePsilocybin

Assessing potential of psilocybin for depressive disorders.

Kozak Z, Johnson MW, Aaronson ST

Europe PMC2023
ArticlePsychedelics

Clinical Trial Design Challenges and Opportunities for Emerging Treatments for Opioid Use Disorder: A Review.

Kiluk BD, Kleykamp BA, Comer SD +24

Europe PMC2023
ArticlePsilocybin

Psychedelics and Psychotherapy: Cognitive-Behavioral Approaches as Default.

Yaden DB, Earp D, Graziosi M +3

Europe PMC2022
ArticlePsilocybin

Efficacy and safety of psilocybin-assisted treatment for major depressive disorder: Prospective 12-month follow-up.

Gukasyan N, Davis AK, Barrett FS +4

Europe PMC2022
ArticlePsilocybin

Psychedelic Identity Shift: A Critical Approach to Set And Setting.

Devenot N, Seale-Feldman A, Smith E +3

Europe PMC2022
ArticlePsilocybin

Classic Psychedelics in Addiction Treatment: The Case for Psilocybin in Tobacco Smoking Cessation.

Johnson MW

Europe PMC2022
ArticlePsilocybin

Human behavioral pharmacology of psychedelics.

Strickland JC, Johnson MW

Europe PMC2022
ArticleDMT

A narrative synthesis of research with 5-MeO-DMT.

Ermakova AO, Dunbar F, Rucker J +1

Europe PMC2022
ArticlePsilocybin

Psychedelics and Consciousness: Distinctions, Demarcations, and Opportunities.

Yaden DB, Johnson MW, Griffiths RR +6

Europe PMC2021
ArticlePsilocybin

Predicting changes in substance use following psychedelic experiences: natural language processing of psychedelic session narratives.

Cox DJ, Garcia-Romeu A, Johnson MW

Europe PMC2021
ArticlePsilocybin

Psychedelics and health behaviour change.

Teixeira PJ, Johnson MW, Timmermann C +5

Europe PMC2022
ArticlePsilocybin

Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder: A Randomized Clinical Trial.

Davis AK, Barrett FS, May DG +5

Europe PMC2021
ArticlePsilocybin

Optimal dosing for psilocybin pharmacotherapy: Considering weight-adjusted and fixed dosing approaches.

Garcia-Romeu A, Barrett FS, Carbonaro TM +2

Europe PMC2021
ArticlePsilocybin

Set and Setting: A Randomized Study of Different Musical Genres in Supporting Psychedelic Therapy.

Strickland JC, Garcia-Romeu A, Johnson MW

Europe PMC2021
ArticlePsychedelics

Consciousness, Religion, and Gurus: Pitfalls of Psychedelic Medicine.

Johnson MW

Europe PMC2021
ArticlePsychedelics

The Acute Effects of the Atypical Dissociative Hallucinogen Salvinorin A on Functional Connectivity in the Human Brain.

Doss MK, May DG, Johnson MW +5

Europe PMC2020
ArticlePsilocybin

Subjective features of the psilocybin experience that may account for its self-administration by humans: a double-blind comparison of psilocybin and dextromethorphan.

Carbonaro TM, Johnson MW, Griffiths RR

Europe PMC2020
ArticlePsilocybin

Editorial: Hallucinogens and Entactogens: Establishing a New Class of <i>Psychotherapeutic</i> Drugs?

Müller F, Johnson MW, Borgwardt S

Europe PMC2020
ArticlePsilocybin

Persisting Reductions in Cannabis, Opioid, and Stimulant Misuse After Naturalistic Psychedelic Use: An Online Survey.

Garcia-Romeu A, Davis AK, Erowid E +3

Europe PMC2019
ArticlePsilocybin

Cessation and reduction in alcohol consumption and misuse after psychedelic use.

Garcia-Romeu A, Davis AK, Erowid F +3

Europe PMC2019
ArticlePsilocybin

Survey of subjective "God encounter experiences": Comparisons among naturally occurring experiences and those occasioned by the classic psychedelics psilocybin, LSD, ayahuasca, or DMT.

Griffiths RR, Hurwitz ES, Davis AK +2

Europe PMC2019
ArticlePsilocybin

Classic psychedelics: An integrative review of epidemiology, therapeutics, mystical experience, and brain network function.

Johnson MW, Hendricks PS, Barrett FS +1

Europe PMC2019
ArticlePsilocybin

Double-blind comparison of the two hallucinogens psilocybin and dextromethorphan: effects on cognition.

Barrett FS, Carbonaro TM, Hurwitz E +2

Europe PMC2018
ArticlePsilocybin

The abuse potential of medical psilocybin according to the 8 factors of the Controlled Substances Act.

Johnson MW, Griffiths RR, Hendricks PS +1

Europe PMC2018
ArticlePsilocybin

Double-blind comparison of the two hallucinogens psilocybin and dextromethorphan: similarities and differences in subjective experiences.

Carbonaro TM, Johnson MW, Hurwitz E +1

Europe PMC2018
ArticlePsilocybin

Potential Therapeutic Effects of Psilocybin.

Johnson MW, Griffiths RR

Europe PMC2017
ArticlePsilocybin

An online survey of tobacco smoking cessation associated with naturalistic psychedelic use.

Johnson MW, Garcia-Romeu A, Johnson PS +1

Europe PMC2017
ArticlePsilocybin

The Challenging Experience Questionnaire: Characterization of challenging experiences with psilocybin mushrooms.

Barrett FS, Bradstreet MP, Leoutsakos JS +2

Europe PMC2016
ArticlePsilocybin

Survey study of challenging experiences after ingesting psilocybin mushrooms: Acute and enduring positive and negative consequences.

Carbonaro TM, Bradstreet MP, Barrett FS +4

Europe PMC2016
ArticlePsychedelics

Psychedelic medicine: a re-emerging therapeutic paradigm.

Tupper KW, Wood E, Yensen R +1

Europe PMC2015
ArticlePsilocybin

Psilocybin, psychological distress, and suicidality.

Hendricks PS, Johnson MW, Griffiths RR

Europe PMC2015
ArticlePsychedelics

Salvinorin-A Induces Intense Dissociative Effects, Blocking External Sensory Perception and Modulating Interoception and Sense of Body Ownership in Humans.

Maqueda AE, Valle M, Addy PH +11

Europe PMC2015
ArticlePsilocybin

Can psychedelic compounds play a part in drug dependence therapy?

Sessa B, Johnson MW

Europe PMC2015
ArticlePsilocybin

Psilocybin-occasioned mystical experiences in the treatment of tobacco addiction.

Garcia-Romeu A, Griffiths RR, Johnson MW

Europe PMC2014
ArticlePsilocybin

High doses of dextromethorphan, an NMDA antagonist, produce effects similar to classic hallucinogens.

Reissig CJ, Carter LP, Johnson MW +3

Europe PMC2012
ArticlePsilocybin

Psilocybin dose-dependently causes delayed, transient headaches in healthy volunteers.

Johnson MW, Sewell RA, Griffiths RR

Europe PMC2012