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Jacob S. Aday

Central Michigan University, University of Michigan

50 papers in the library · 1,523 citations · publishing 2019-2026

Papers

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Effects of Ayahuasca on Gratitude and Relationships with Nature: A Prospective, Naturalistic Study.

Journal of Psychoactive Drugs 2025 Jacob S. Aday, Emily K. Bloesch, Alan K. Davis et al. 16 citations

Qualitative studies and anecdotal reports suggest that experiences with ayahuasca, a psychedelic brew found in Central and South America, may be followed by individuals enduringly feeling more grateful and connected to nature. Yet, to date, these changes have been understudied. Here, participants (N = 54) completed validated surveys related to gratitude, nature relatedness, and nature...

DOI: 10.1080/02791072.2024.2312980 (opens in new tab) Full text (opens in new tab) Ayahuasca Positive psychology wellbeing Mystical experiences Biophilia +7

Best practices for first psychedelic experiences: harm reduction advice from the psychedelic community

Figshare 2025 Daniel J. Kruger, Gina Mersereau, Ashley Sullivan et al. preprint

Abstract Background The use of psychedelics is currently increasing in the United States. Awareness of clinical trials investigating the therapeutic applications of psychedelics may result in a record number of people who use psychedelics for the first-time. This study aimed to develop a harm-reduction resource to facilitate safe and successful psychedelic experiences outside of regulated...

Going Underground: Demographics, Services, and Best Practices Endorsed by Practitioners Providing Support for Naturalistic Psychedelic Use

Journal of Psychoactive Drugs September 19, 2024 Anne Baker, Niloufar Pouyan, Julie Barron et al. 9 citations

Psychedelic-assisted therapy (PAT) has shown preliminary efficacy for psychiatric and physical health conditions. Although some people report naturalistic psychedelic use with so-called "underground" practitioners, little is known about PAT that occurs outside of controlled clinical settings or perspectives of these practitioners. We conducted an anonymous online survey of individuals who...

DOI: 10.1080/02791072.2024.2405685 (opens in new tab) Full text (opens in new tab) Demographics Naturalistic observation Substance use Best practice +1

Psychedelic-assisted psychotherapy: where is the psychotherapy research?

Psychopharmacology August 1, 2024 Jacob S. Aday, David Horton, Gisele Fernandes-Osterhold et al. 39 citations

Psychedelic-assisted psychotherapy (PAP) has emerged as a potential treatment for a variety of mental health conditions, including substance use disorders and depression. Current models of PAP emphasize the importance of psychotherapeutic support before, during, and after ingestion of a psychedelic to maximize safety and clinical benefit. Despite this ubiquitous assumption, there has been...

Editorial: Down the rabbit hole - the psychological and neural mechanisms of psychedelic compounds and their use in treating mental health and medical conditions.

Frontiers in Psychiatry June 10, 2024 Leehe Peled-Avron, Jacob S. Aday, Amilia Lydia Kalafateli et al. 2 citations

Editorial on the Research Topic Down the rabbit hole -the psychological and neural mechanisms of psychedelic compounds and their use in treating mental health and medical conditions Psychedelic substances have demonstrated promising therapeutic effects across a wide range of mental health conditions including depression (1-13) anxiety disorders including generalized anxiety (14-16) and social...

DOI: 10.3389/fpsyt.2024.1431389 (opens in new tab) Full text (opens in new tab) Mental health Psychedelics Psychiatric treatment Therapeutic research

Attitudes of psychedelic users regarding cost of treatment and non-hallucinogenic alternatives

Journal of Psychedelic Studies May 30, 2024 Jacob S. Aday, Kevin F. Boehnke, Moss Herberholz et al. 3 citations

Psychedelic-assisted psychotherapy (PAP) is currently being studied as a possible treatment option for multiple disorders. Despite promising safety and efficacy findings, the high costs of the current PAP model makes it questionable if the treatment will be scalable. Non-hallucinogenic psychedelic analogs have been developed as a potential cost-effective alternative, but it is unclear what...

Psychedelic Research as a Career Path: A Roundtable Discussion with Early Career Researchers in the Field.

Psychedelic Medicine March 12, 2024 Jacob S. Aday, Natasha L. Mason, Bo Jarrett Wood et al.

Psychedelic MedicineAhead of Print Psychedelic Research as a Career Path: A Roundtable Discussion with Early Career Researchers in the FieldModerators: Jacob S. Aday, Natasha L. Mason, Participants: Bo Jarrett Wood, Hannah M. Kramer, Cynthia E. Ortiz, M. Frances Vest, Caroline Sagrera, and C. J. HealyModerators: Jacob S. Aday*Address correspondence to: Jacob S. Aday, PhD, Department of...

DOI: 10.1089/psymed.2023.0053 (opens in new tab) Full text (opens in new tab) Psychedelic science Psychedelic research Psychedelics Psychedelic studies +20

Increases in Aesthetic Experience Following Ayahuasca Use: A Prospective, Naturalistic Study

Journal of Humanistic Psychology February 27, 2024 Jacob S. Aday, Emily K. Bloesch, Alan K. Davis et al. 5 citations

Psychedelic drugs are currently being investigated for their potential to facilitate a variety of long-lasting psychological changes. One area that has yet to be systematically investigated in psychedelic research, however, regards changes in aesthetic experience (i.e., one’s attitudes, perceptions, and expression of art). This is surprising given the wealth of anecdotes directly noting...

DOI: 10.1177/00221678241230609 (opens in new tab) Ayahuasca Mysticism Aesthetic experience Religious experience +3

Psychedelic substitution: altered substance use patterns following psychedelic use in a global survey.

Frontiers in Psychiatry 2024 Nicolas G. Glynos, Jacob S. Aday, Daniel J. Kruger et al. 15 citations

Recent research suggests that psychedelics may have potential for the treatment of various substance use disorders. However, most studies to date have been limited by small sample sizes and neglecting to include non-North American and European populations. We conducted a global, cross-sectional online survey of adults (n = 5,268, 47.2% women) self-reporting past or current psychedelic use and...

Expectancy Effects Cannot Be Neglected in MDMA-Assisted Therapy Research.

ACS Chemical Neuroscience November 15, 2023 L Jacob Flameling, Jacob S. Aday, Michiel van Elk

ADVERTISEMENT RETURN TO ARTICLES ASAPPREVViewpointNEXTExpectancy Effects Cannot Be Neglected in MDMA-Assisted Therapy ResearchL. Jacob FlamelingL. Jacob FlamelingInstitute of Psychology, Leiden University, Leiden 2333 AK, The NetherlandsMore by L. Jacob Flamelinghttps://orcid.org/0000-0002-1425-1180, Jacob S. AdayJacob S. AdayDepartment of Anesthesiology, University of Michigan, Ann Arbor,...

Psychedelic Commercialization: A Wide-Spanning Overview of the Emerging Psychedelic Industry.

Psychedelic Medicine September 13, 2023 Jacob S. Aday, Brian S. Barnett, Dan Grossman et al. 56 citations

Background: In the wake of positive clinical trial outcomes of psychedelic-assisted psychotherapy for the treatment of various psychiatric disorders, there has been an influx of financial investment into psychedelic drug development from the pharmaceutical and biotech sectors. Psychedelics are now a multibillion dollar industry, with hundreds of companies that are seeking to commercialize...

DOI: 10.1089/psymed.2023.0013 (opens in new tab) Full text (opens in new tab) Psychedelics Pharmaceutical-industry Mental-health-treatment Indigenous-medicine +1

Effects of ayahuasca on gratitude and relationships with nature: An open-label, naturalistic study

June 7, 2023 Jacob S. Aday, Emily K. Bloesch, Alan K. Davis et al. 1 citation preprint

Ayahuasca is a psychedelic brew that has been the focus of an increasing number of investigations for its potential therapeutic effects. In addition to psychiatric improvements, qualitative studies and anecdotal reports suggest that ayahuasca use may influence gratitude and relationships with nature. Yet, to date, these specific changes have been understudied. Here, participants (N = 54)...

DOI: 10.31234/osf.io/t32qp (opens in new tab) Full text (opens in new tab) Ayahuasca Gratitude Prosocial behavior Clinical psychology +1

Increases in aesthetic experience following ayahuasca use: An open-label, naturalistic study

May 15, 2023 Jacob S. Aday, Emily K. Bloesch, Alan K. Davis et al. 3 citations preprint

Psychedelic drugs are currently being investigated for their potential to facilitate a variety of long-lasting psychological changes. One area of psychological functioning that has yet to be systematically investigated in psychedelic research regards aesthetic experiences. This is surprising given the notable acute changes in perception induced by the drugs as well as the wealth of anecdotal...

Personal Psychedelic Use Is Common Among a Sample of Psychedelic Therapists: Implications for Research and Practice

Psychedelic Medicine February 16, 2023 Zachary Skiles, Noa Eaton, Lisa Fredenburg et al. 49 citations

Background: An emerging controversy in psychedelic therapy regards the appropriateness or necessity of psychedelic therapists having personal experience using psychedelics themselves. Although there are a number of potential advantages and disadvantages to personal use among psychedelic therapists, no studies to date have measured their use or other aspects of their training. Materials and...

DOI: 10.1089/psymed.2022.0004 (opens in new tab) Full text (opens in new tab) Sample material Psychotherapist Clinical psychology

Great Expectations: recommendations for improving the methodological rigor of psychedelic clinical trials

Psychopharmacology April 1, 2022 Jacob S. Aday, Boris D. Heifets, Steven D. Pratscher et al. 214 citations

RationalePsychedelic research continues to garner significant public and scientific interest with a growing number of clinical studies examining a wide range of conditions and disorders. However, expectancy effects and effective condition masking have been raised as critical limitations to the interpretability of the research.ObjectiveIn this article, we review the many methodological...

Adverse effects of psychedelics: From anecdotes and misinformation to systematic science.

Journal of Psychopharmacology February 2, 2022 Anne K. Schlag, Jacob S. Aday, Iram Salam et al. 319 citations

BACKGROUND: Despite an increasing body of research highlighting their efficacy to treat a broad range of medical conditions, psychedelic drugs remain a controversial issue among the public and politicians, tainted by previous stigmatisation and perceptions of risk and danger. OBJECTIVE: This narrative review examines the evidence for potential harms of the classic psychedelics by separating...

DOI: 10.1177/02698811211069100 (opens in new tab) Full text (opens in new tab) Psychedelic research Psychedelics study Risk assessment Risk evaluation +4

Debunking the myth of 'Blue Mondays': No evidence of affect drop after taking clinical MDMA.

Journal of Psychopharmacology December 13, 2021 Ben Sessa, Jacob S. Aday, Steve O’Brien et al. 18 citations

BACKGROUND: Incorporating 3,4-methylenedioxymethamphetamine (MDMA) as an adjunct to psychotherapy has shown promise in recent years for treating various mental health conditions, particularly those involving trauma. However, concerns about declines in mood and cognition during the days following dosing, also known as 'Blue Mondays', have been raised as limitations to its clinical use. Although...

DOI: 10.1177/02698811211055809 (opens in new tab) Ecstasy Molly 3 4-methylenedioxymethamphetamine +16

Predicting Reactions to Psychedelic Drugs: A Systematic Review of States and Traits Related to Acute Drug Effects.

ACS Pharmacology & Translational Science March 5, 2021 Jacob S. Aday, Alan K. Davis, Cayla M. Mitzkovitz et al. 228 citations

Psychedelic drugs are increasingly being incorporated into therapeutic contexts for the purposes of promoting mental health. However, they can also induce adverse reactions in some individuals, and it is difficult to predict before treatment who is likely to experience positive or adverse acute effects. Although consideration of setting and dosage as well as excluding individuals with psychotic...

DOI: 10.1021/acsptsci.1c00014 (opens in new tab) Full text (opens in new tab) Psychedelics Psychedelic experiences Drug effects Individual differences +8

Psychedelic drugs and perception: a narrative review of the first era of research

Reviews in the Neurosciences February 5, 2021 Jacob S. Aday, J. Wood, Emily K. Bloesch et al.

Abstract Psychedelic drugs are well-known for transiently altering perception, and in particular, for their visual effects. Although scientific interest into the substances’ effects on perception increased during the first era of psychedelic research during the early to mid-20th century, there is currently no source where these findings have been synthesized. In addressing this gap, the current...

Psychedelics and virtual reality: parallels and applications.

Therapeutic Advances in Psychopharmacology August 14, 2020 Jacob S. Aday, Christopher C. Davoli, Emily K. Bloesch 50 citations

Psychedelic drugs and virtual reality (VR) each have the capacity to disrupt the rigidity and limitations of typical conscious experience. This article delineates the parallels among psychedelic and VR states as well as their potential synergistic applications in clinical and recreational settings. Findings indicate that, individually, psychedelics and VR are used in analogous ways to alter...

Long-term effects of psychedelic drugs: A systematic review

Neuroscience & Biobehavioral Reviews March 16, 2020 Jacob S. Aday, Cayla M. Mitzkovitz, Emily K. Bloesch et al. 260 citations

Research into the basic effects and therapeutic applications of psychedelic drugs has grown considerably in recent years. Yet, pressing questions remain regarding the substances' lasting effects. Although individual studies have begun monitoring sustained changes, no study to-date has synthesized this information. Therefore, this systematic review aims to fill this important gap in the...

DOI: 10.1016/j.neubiorev.2020.03.017 (opens in new tab) Term time Hallucinogen Pharmacology

2019: A year of expansion in psychedelic research, industry, and deregulation

Drug Science, Policy and Law 2020 Jacob S. Aday, Emily K. Bloesch, Christopher C. Davoli 59 citations

Public and scientific interest into psychedelic drugs has grown steadily over much of the last two decades, before an exponential increase in recent years. We contend that 2019, in particular, involved myriad notable changes in the science, industry, and deregulation of psychedelic drugs. However, it is becoming increasingly difficult for professionals to keep up-to-date on these advancements...

Beyond LSD: A Broader Psychedelic Zeitgeist during the Early to Mid-20thCentury

Journal of Psychoactive Drugs March 6, 2019 Jacob S. Aday, Emily K. Bloesch, Christopher C. Davoli 19 citations

During the 1950s and 1960s, there was a tremendous surge in research into the effects of psychedelic drugs. When discussing this period of research, the discovery of the psychoactive properties of LSD in 1943 is often presented as the main, and sometimes only, driving force of the boom in research. This "Great Person," or "Great Chemical," historiographical lens fails to acknowledge other...

2018: A watershed year for psychedelic science

Drug Science, Policy and Law 2019 Jacob S. Aday, Christopher C. Davoli, Emily K. Bloesch 30 citations

While interest in the study of psychedelic drugs has increased over much of the last decade, in this article, we argue that 2018 marked the true turning point for the field. Substantive advances in the scientific, public, and regulatory communities in 2018 significantly elevated the status and long-term outlook of psychedelic science, particularly in the United States. Advances in the...

DOI: 10.1177/2050324519872284 (opens in new tab) Psilocybin Acknowledgement Hallucinogen Social science +1

Expectancy effects cannot be neglected in MDMA-assisted therapy research

L. J. Flameling, Jacob S. Aday, Michiel van Elk 1 citation preprint

In their recent paper titled “MDMA-assisted therapy for moderate to severe PTSD: a randomized, placebo-controlled phase 3 trial”, Mitchell et al.1 report on the results from a study researching the potential use of 3,4-methylenedioxy methamphetamine-assisted therapy (MDMA-AT) for the treatment of posttraumatic stress disorder (PTSD). We applaud the efforts made to further establish the efficacy...