Research & writing
Publications
Peer-reviewed articles and commentary on ketamine, psychedelic pharmacology, and the evolution of psychiatric treatment.
2026Peer-reviewed
Interdisciplinary, Delphi-driven consensus guidelines on the use of intravenous ketamine infusions for depressive disorders from the American Society of Ketamine Physicians, Psychotherapists, and Practitioners (ASKP3)
Mathai DS, et al. (incl. Stewart LH)
Journal of Affective Disorders, 411, 121970 · DOI
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2026Commentary
Clinical and non-clinical use of MDMA
Kvam TM, Goksøyr IW, Stewart LH, Berthold-Losleben M, Autran I, Andreassen OA
Tidsskrift for Den norske legeforening · DOI
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2026Peer-reviewed
MDMA-assisted therapy for major depressive disorder: A seven-month follow-up proof of principle trial
Kvam TM, Goksøyr IW, Rog J, van de Vooren IJ, Stewart LH, et al.
Journal of Psychiatric Research · DOI
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2026Commentary
Transforming treatment-resistant depression care in Norway: Public health reimbursement for off-label intravenous ketamine
Stewart LH, Berthold-Losleben M, Kvam TM, Lien L, Andreassen OA, Clausen I
Drug Science, Policy and Law, 12, 1-5 · DOI
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2025Chapter
Emergency medicine in spaceflight
Lowery C, Heft N, Beger S, Stewart LH
Precision Medicine for Long and Safe Permanence of Humans in Space (Academic Press), 179-206 · DOI
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2025Peer-reviewed
Ketamine treatment for depression in elderly inpatients: an observational case series
Römer B, Maroni S, Fevang E, Helle HB, Stewart LH, Aarsland D, Vik-Mo AO
Journal of Affective Disorders Reports, 20, 100904 · DOI
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2025Peer-reviewed
Contextual and experiential aspects of the psychedelic experience predicting improvement in subjective wellbeing: results from a Norwegian internet convenience sample
Tunstad PA, Kvam TM, Uthaug MV, Stewart LH, Andersen KAA, Grønnerød C
Frontiers in Pharmacology, 16, 1556299 · DOI
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2025Clinical
Ketamine in treatment-resistant depression
Berthold-Losleben M, et al.
Tidsskrift for Den norske legeforening · DOI
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2025Clinical
Ketaminassistert psykoterapi for anorexia nervosa
Dahlgren CL, Tverrli E, Stewart LH
Tidsskrift for Norsk psykologforening
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2025Clinical
Reconnecting through dissociation: a 5-month follow-up case study on ketamine-assisted psychotherapy for anorexia nervosa
Dahlgren CL, Tverrli E, Stewart LH
Journal of Eating Disorders, 13(1), 107 · DOI
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2025Peer-reviewed
MDMA-assisted therapy as a treatment for major depressive disorder: proof of principle study
Kvam TM, Goksøyr IW, Rog J, van de Vooren IJ, Stewart LH, et al.
British Journal of Psychiatry · DOI
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2024Peer-reviewed
Exploration of MDMA-assisted therapy for major depressive disorder: a proof of principle study
Kvam TM, Goksøyr IW, Rog J, van de Vooren IJ, Stewart LH, Berthold-Losleben M, Mørch-Johnsen L, Andreassen OA
Neuroscience Applied, 3, 104179 · DOI
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2024Peer-reviewed
Assessment of psychedelic-induced states: Norwegian translation and adaptation of the revised Mystical Experience Questionnaire (MEQ-30)
Andersen KAA, Holmøy B, Stewart LH
Journal of Psychedelic Studies · DOI
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2023Peer-reviewed
Epidemiology of classic psychedelic substances: results from a Norwegian internet convenience sample
Kvam TM, Uthaug MV, Andersen KAA, Refsum BB, Tunstad PA, Stewart LH, Jacobsen HB, Grønnerød C
Frontiers in Psychiatry, 14, 1287196 · DOI
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2023Clinical
Ketaminassistert psykoterapi for depresjon
Mølmen IF, Andersen K, Stewart LH, Castberg I
Tidsskrift for Norsk psykologforening
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2022Peer-reviewed
Study protocol for "MDMA-assisted therapy as a treatment for major depressive disorder: A proof of principle study"
Kvam TM, Goksøyr IW, Stewart LH, Repantis D, Røssberg JI, Andreassen OA
Frontiers in Psychiatry, 13, 954388 · DOI
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2021Clinical
Ketamin ved depresjon - evidens og forslag til praksis
Kvam TM, Stewart LH, Blomkvist AW, Andreassen OA
Tidsskrift for Den norske legeforening · DOI
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2020Peer-reviewed
Sikkerhet og effekt av 3,4-methylendioksymetamfetamin (MDMA)-assistert psykoterapi ved posttraumatisk stresslidelse (PTSD)
Goksøyr I, Kvam TM, Lund-Høie S, Stewart LH
Tidsskrift for Norsk psykologforening, 57(12), 886-897
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2020Peer-reviewed
A Global Workspace, Evolution-Based Model of the Effect of Psychedelics on Consciousness
Grinde B, Stewart LH
Psychology of Consciousness: Theory, Research, and Practice · DOI
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2018Commentary
Psychedelic drugs in the treatment of anxiety, depression and addiction
Kvam TM, Stewart LH, Andreassen OA
Tidsskrift for Den norske legeforening · DOI
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2018Commentary
The dissociative psychedelic renaissance
Stewart LH
Journal of Psychedelic Studies · DOI
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2017Commentary
New Directions for Drugs of Abuse (Ny kurs for rusmidler)
Blomkvist AW, Eika F, Eika S, Mowé M, Stewart L, Zahid W, Asplin SW
Tidsskrift for Den norske legeforening, 137(3), 178-179 · DOI
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2007Peer-reviewed
Emergency Medicine in Space
Stewart LH, Trunkey D, Rebagliati GS
Journal of Emergency Medicine, 32(1), 45-54 · DOI
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2001Peer-reviewed
Behavioral modification of maternal-fetal passive immunity: immunological changes in response to mirthful stimuli in human breast milk
Stewart L, Seder D, McGrew M
American Federation for Medical Research Western Regional Meeting, Carmel, CA
2000Peer-reviewed
Winter depression and osteopenia: An investigation into the possible association between seasonal affective disorder and decreased bone mineral density
Stewart LH, Lingjaerde O, Foreland AR, Falch JA, Haug E, Uhlenhuth EH
Journal of Investigative Medicine, 48(1), 6A
1996Peer-reviewed
Salivary immunoglobulin A (IgA) responses to mirthful stimuli in Pan troglodytes chimpanzees
Stewart L, Bramblett C, Struthers EJ
Physical Anthropology Honors Thesis, University of Texas at Austin