William A. Richards

6.9k citations

34 papers · 4.5k indexed · 4 hit papers · h-index 21

Impact in

Clinical Psychology top 0.2%
- Psychedelics and Drug Studies
Biological Psychiatry top 2%
- Tryptophan and brain disorders

Papers in

Clinical Psychology 27
- Psychedelics and Drug Studies 25
- Psychotherapy Techniques and Applications 4
Health 5
- Religion, Spirituality, and Psychology 4

Co-authors: Roland R. Griffiths Robert L. Jesse Brian D. Richards Matthew W. Johnson U. McCann Mary P Cosimano Annie Umbricht Michael A. Carducci
Journals: Journal of Religion and Health (3 papers)Journal of Psychopharmacology (3 papers)Psychopharmacology (2 papers)Journal of Humanistic Psychology (2 papers)Cancer (1 paper)
Partner nations: United States Canada Germany

In The Last Decade

William A. Richards

31 papers receiving 4.2k citations

Hit Papers

align trajectories log scale

Psilocybin-occasioned mystical-type experience in combination with meditation and other spiritual practices produces enduring positive changes in psychological functioning and in trait measures of prosocial attitudes and behaviors 2017 · 326 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2017 Journal of Psychopharmacology
2016 Journal of Psychopharmacology
2011 Psychopharmacology
2006 Psychopharmacology

Peers

Countries citing papers authored by William A. Richards

Since Specialization

Citations

This map shows the geographic impact of William A. Richards's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by William A. Richards with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites William A. Richards more than expected).

Fields of papers citing papers by William A. Richards

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by William A. Richards. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by William A. Richards. The network helps show where William A. Richards may publish in the future.

Co-authors

The 25 scholars most cited alongside William A. Richards, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with William A. Richards Line = papers co-authored together William A. Richards links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	The Afterglow Inventory (AGI): Validation of a new instrument for measuring subacute effects of classic serotonergic psychedelics Journal of Psychopharmacology ·Tomislav Majić, Timo Torsten Schmidt, Medha Sachdeva, Peter Gasser, William A. Richards, Thomas Riemer, Ricarda Evens	2025	0
2	Effects of Psilocybin on Religious and Spiritual Attitudes and Behaviors in Clergy from Various Major World Religions PubMed ·Roland R. Griffiths, Robert L. Jesse, William A. Richards, Matthew W. Johnson, Nathan D. Sepeda, Anthony P. Bossis, Stephen Ross	2025	1
3	Psychedelic Christianity: Commentary and reply Michael Winkelman, 桂跃华, 昇塚原, Michael Christiansen, Косимов Матазим Аскарович, Joseph G. Lorenz, M Rizky Oktafryan, William A. Richards, Harry T. Hunt, Firdaus Firdaus, 光展佐武, Yihua Zhu, Vera Lúcia Abrão Borges, Aliye Abdughini, Balen Ahmed, Lei Xu, Mahendra V. Padmini, E. A. Usol’tsev	2024	0
4	Developing a Direct Observation Measure of Therapeutic Connection in Psilocybin-Assisted Therapy: A Feasibility Study Journal of Palliative Medicine ·Robert Gramling, Emily Bennett, Shawn Titus, William A. Richards, Donna M. Rizzo, P.L. Wang, N A Tumanov, Xiaopo Fu, KM Nemec, Ahmed Al-Shahat Al-Minshawi, Elise C. Tarbi, Maija Reblin, Mateo Almeida-Veloz, Manish Agrawal	2023	3
5	Psilocybin‐assisted group therapy in patients with cancer diagnosed with a major depressive disorder Cancer ·Jennifer Garvey Berger, William A. Richards, Yvan Beaussant, Robert Scales, Rezvan Ameli, Nabil Hmaidouch, 柏家林, Brian D. Richards, N. Schor, KM Nemec, Sherry Gandy, Mark Bates, Mateo Almeida-Veloz	2023	33
6	Assessment of Psilocybin Therapy for Patients With Cancer and Major Depression Disorder JAMA Oncology ·Manish Agrawal, Ezekiel Emanuel, Brian D. Richards, William A. Richards, Clarissa de Carvalho Resende, Mateo Almeida-Veloz	2023	26
7	Development and Evaluation of a Therapist Training Program for Psilocybin Therapy for Treatment-Resistant Depression in Clinical Research Frontiers in Psychiatry ·Sara Tai, Elizabeth M. Nielson, Р. Малетић, Cristina Raquel Cedeño Núñez, Eva Vergara, William A. Richards, Hannah D. Cornell, Brian D. Richards, Peter Gasser, Ekaterina Malievskaia	2021	60
8	Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial Journal of Psychopharmacology ·Roland R. Griffiths, Matthew W. Johnson, Michael A. Carducci, Annie Umbricht, William A. Richards, Brian D. Richards, Mary P Cosimano, Le Queau F Hit paper breakdown →	2016	1376
9	Sacred Knowledge: Psychedelics and Religious Experiences William A. Richards	2015	65
10	Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects Psychopharmacology ·Roland R. Griffiths, Matthew W. Johnson, William A. Richards, Brian D. Richards, Una D. McCann, Robert L. Jesse Hit paper breakdown →	2011	612
11	THE REBIRTH OF RESEARCH WITH ENTHEOGENS: LESSONS FROM THE PAST AND HYPOTHESES FOR THE FUTURE William A. Richards	2009	8
12	Psilocybin can occasion mystical-type experiences having substantial and sustained personal meaning and spiritual significance Psychopharmacology ·Roland R. Griffiths, William A. Richards, U. McCann, Robert L. Jesse Hit paper breakdown →	2006	1053
13	Entheogens in the Study of Religious Experiences: Current Status* Journal of Religion and Health ·William A. Richards	2005	11
14	Effects of parental maltreatment on children's conceptions of interpersonal relationships. Developmental Psychology ·Anne L. Dean, C. Okuno, William A. Richards, Sharon A. Stringer	1986	64
15	Mystical and archetypal experiences of terminal patients in DPT-assisted psychotherapy Journal of Religion and Health ·William A. Richards	1978	22
16	The Peak Experience Variable in DPT-Assisted Psychotherapy with Cancer Patients Journal of Psychedelic Drugs ·William A. Richards, John Rhead, S Attar, Susana Pardillo Pilar, Albert A. Kurland	1977	80
17	LSD-Assisted Psychotherapy in Patients with Terminal Cancer International Pharmacopsychiatry ·S Grof, E Pardellas-Santiago, William A. Richards, A. A. Kurland	1973	147
18	LSD-assisted psychotherapy and the human encounter with death. William A. Richards, Stanislav Grof, Mohamed Aboumustapha, Albert A. Kurland	1972	36
19	Implications of LSD and experimental mysticism Journal of Religion and Health ·Walter N. Pahnke, William A. Richards	1966	160
20	Some interpersonal and group relationship problems of a therapeutic community William A. Richards	1960	1

About William A. Richards

William A. Richards is a scholar working on Clinical Psychology, Health, Philosophy, Organic Chemistry and Biological Psychiatry, having authored 34 papers that have together received 4.5k indexed citations. Recurring topics across this work include Psychedelics and Drug Studies (25 papers), Chemical synthesis and alkaloids (13 papers), Religious Studies and Spiritual Practices (6 papers), Neurotransmitter Receptor Influence on Behavior (6 papers), Paranormal Experiences and Beliefs (5 papers), Cannabis and Cannabinoid Research (5 papers), Religion, Spirituality, and Psychology (4 papers) and Psychotherapy Techniques and Applications (4 papers). The work is most often cited by research in Clinical Psychology (4.3k citations), Biological Psychiatry (248 citations), Cellular and Molecular Neuroscience (1.7k citations), Organic Chemistry (2.4k citations) and Complementary and alternative medicine (498 citations). William A. Richards has collaborated with scholars based in United States, Canada and Germany. Frequent co-authors include Roland R. Griffiths, Robert L. Jesse, Brian D. Richards, Matthew W. Johnson, U. McCann, Mary P Cosimano, Annie Umbricht, Michael A. Carducci, Una D. McCann and Walter N. Pahnke. Their work appears in journals such as Journal of Religion and Health, Journal of Psychopharmacology, Psychopharmacology, Journal of Humanistic Psychology and Cancer.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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