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existwell.bsky.social
existwell
@existwell.bsky.social
Science of psychedelics & other altered states of consciousness

Center for Psychedelic and Consciousness Research
@jhpsychedelics.bsky.social
Johns Hopkins University School of Medicine
Oxford Uehiro Institute
Yaden Lab
www.YadenLab.com
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Nice thread describing our new study on why kids play
oh what fun it is to have this paper out :)
December 15, 2025 at 2:11 PM
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The Psychedelic Practitioner Issue 2: Preparation

We explore the science and practice of psychedelic preparation through interviews, research reviews, and practitioner insights.

Read now: psychedelicalpha.com/news/the-psy...
December 11, 2025 at 4:40 PM
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Love this work by @dillonplunkett.bsky.social and @jorge-morales.bsky.social! Representational momentum beyond motion 👇
When we see something that's moving, our memories about it end up projected forward in time: We remember it further along than it was. In a new paper in 𝘗𝘴𝘺𝘤𝘩𝘰𝘭𝘰𝘨𝘪𝘤𝘢𝘭 𝘚𝘤𝘪𝘦𝘯𝘤𝘦, out today and led by @dillonplunkett.bsky.social, we demonstrate that this happens even when there is 𝙣𝙤 𝙢𝙤𝙩𝙞𝙤𝙣 𝙬𝙝𝙖𝙩𝙨𝙤𝙚𝙫𝙚𝙧.🧵
Representational Momentum Transcends Motion
Dillon Plunkett & Jorge Morales (2025) Psychological Science
subjectivitylab.org
December 10, 2025 at 1:48 AM
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Dr. David Yaden was interviewed by The Harvard Gazette on the need for large, rigorous NIH-funded psychedelic research.
December 10, 2025 at 4:38 PM
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New paper led by CPCR postdoc Praachi Tiwari!
The psychedelic DOI alters locomotion depending on dose & species (thru 5-HT₂A receptors) aiding understanding anxiety-like behavior in animal models of psychedelics.
(w/ @viditavaidya.bsky.social and her great lab)
www.sciencedirect.com/science/arti...
Acute DOI treatment evokes dose and species-dependent locomotor effects on the elevated plus maze
Recent evidence suggests that psychedelics hold promise in treating a range of neuropsychiatric disorders, highlighting the need to better understand …
www.sciencedirect.com
November 11, 2025 at 3:07 PM
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Well this is exciting!

The Department of Psychological & Brain Sciences at Johns Hopkins University (@jhu.edu) invites applications for a full-time tenured or tenure-track faculty member in Cognitive Psychology, in any area and at any rank!

Application + more info: apply.interfolio.com/178146
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
December 2, 2025 at 3:18 AM
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A short preprint describing our adoption of more consistent and precise use of terminology related to reproducibility, robustness, replicability, repeatability, and credibility.

osf.io/preprints/me...
December 3, 2025 at 6:51 PM
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Learn more about our course here: www.hopkinsmedicine.org/news/article...
Johns Hopkins Researchers Create Course on Psychedelics
www.hopkinsmedicine.org
November 20, 2025 at 9:41 PM
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In a new Review for @cp-trendscognsci.bsky.social -- and my first first-authored paper! -- @manvir.bsky.social and I argue that experience shapes the emergence and evolution of seemingly extraordinary beliefs.
www.sciencedirect.com/science/arti...
How experience shapes extraordinary beliefs
The ubiquity of extraordinary beliefs across human societies, such as conspiracy theories, pseudoscience, and supernatural beliefs, is a long-standing…
www.sciencedirect.com
December 2, 2025 at 3:32 PM
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Much less discussed, but much higher quality design showing NO effect of psychedelic experience on metaphysical beliefs
(though intriguing mind perception finding to follow up on) pubmed.ncbi.nlm.nih.gov/38715376/
Psychedelic Experiences Increase Mind Perception but do not Change Atheist-Believer Status: A Prospective Longitudinal Study - PubMed
Recent studies suggest psychedelic use may be associated with changes in a variety of beliefs or belief-like states, including increased 1) mind perception, 2) non-naturalistic beliefs, and 3) Atheist-Believer status (e.g. believer, agnostic, or nonbeliever). We conducted a prospective longitudinal …
pubmed.ncbi.nlm.nih.gov
November 13, 2025 at 9:52 PM
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Announcing a new Coursera on Psychedelic Science and Medicine!

From @jhpsychedelics.bsky.social, it provides info on psychedelic science, history, risks, benefits, trials, neuro, & more.

Taught by Drs. @fredbarrettphd.bsky.social, Garcia-Romeu, Nayak, Sayali, Tiwari, Yaden, & special guests-
November 21, 2025 at 5:24 PM
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Curious about psychedelics beyond the hype? Our new Coursera course, Psychedelic Science and Medicine, offers clear, evidence-based education on how they work & who they may help.Perfect for clinicians, students, researchers, or anyone wanting reliable info in a rapidly growing field. Enroll below👇
November 20, 2025 at 9:41 PM
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Here's an article on the course and our aims: www.hopkinsmedicine.org/news/article...
Johns Hopkins Researchers Create Course on Psychedelics
www.hopkinsmedicine.org
November 21, 2025 at 5:25 PM
Announcing a new Coursera on Psychedelic Science and Medicine!

From @jhpsychedelics.bsky.social, it provides info on psychedelic science, history, risks, benefits, trials, neuro, & more.

Taught by Drs. @fredbarrettphd.bsky.social, Garcia-Romeu, Nayak, Sayali, Tiwari, Yaden, & special guests-
November 21, 2025 at 5:24 PM
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CPCR Faculty
@existwell.bsky.social
will give a talk on his book, which is now out on paperback, in Baltimore near Johns Hopkins campus. Open to the public! Wednesday 11/19 at 6pm 11 E. 33rd St
November 18, 2025 at 5:09 PM
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#philsci #cogsky #CognitiveNeuroscience

@phaueis.bsky.social and I have had our paper, “Metabolic considerations for cognitive modeling,” accepted as a target article in Behavioral and Brain Sciences.

www.cambridge.org/core/journal...
Metabolic considerations for cognitive modeling | Behavioral and Brain Sciences | Cambridge Core
Metabolic considerations for cognitive modeling
www.cambridge.org
November 18, 2025 at 11:58 AM
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Lots of discussion of the cross-sectional, retrospective survey showing evidence for metaphysical belief change after psychedelic experiences...
(picture on left)

But few know of the better quality prospective longitudinal study showing NO evidence for belief change!
(picture on right)
November 13, 2025 at 9:50 PM
Reposted by existwell
Dr. David Yaden will be speaking at MGH’s Psychedelics & Psychedelic Medicine Conference (Nov 14–15, virtual). Learn the latest research + earn CME/CE. Use code NET50 to save $50.
Register: lms.mghcme.org/VirtualPsych...
November 6, 2025 at 9:49 PM
Lots of discussion of the cross-sectional, retrospective survey showing evidence for metaphysical belief change after psychedelic experiences...
(picture on left)

But few know of the better quality prospective longitudinal study showing NO evidence for belief change!
(picture on right)
November 13, 2025 at 9:50 PM
Reposted by existwell
New article published in
@jamahealthforum.com that examines and critiques 4 aspects of the current pathwork of regulations covering access to psychedelics––and then provides constructive, sensible, and actionable ways forward for each.

Work led by drug policy expert @caleighpropes.bsky.social
New today in JAMA Health Forum: Our team discusses how to fill policy gaps surrounding the use of psychedelics to treat mental health and substance use conditions, should they be approved by the US Food and Drug Administration.
Gaps in US Psychedelic Policy and How to Close Them | Health Policy - By @caleighpropes.bsky.social, @katherinecheung.bsky.social, Matthew Eisenberg, David Yaden | @jama.com Health Forum jamanetwork.com/journals/jam...
November 10, 2025 at 3:37 PM
New paper led by CPCR postdoc Praachi Tiwari!
The psychedelic DOI alters locomotion depending on dose & species (thru 5-HT₂A receptors) aiding understanding anxiety-like behavior in animal models of psychedelics.
(w/ @viditavaidya.bsky.social and her great lab)
www.sciencedirect.com/science/arti...
Acute DOI treatment evokes dose and species-dependent locomotor effects on the elevated plus maze
Recent evidence suggests that psychedelics hold promise in treating a range of neuropsychiatric disorders, highlighting the need to better understand …
www.sciencedirect.com
November 11, 2025 at 3:07 PM
New article published in
@jamahealthforum.com that examines and critiques 4 aspects of the current pathwork of regulations covering access to psychedelics––and then provides constructive, sensible, and actionable ways forward for each.

Work led by drug policy expert @caleighpropes.bsky.social
New today in JAMA Health Forum: Our team discusses how to fill policy gaps surrounding the use of psychedelics to treat mental health and substance use conditions, should they be approved by the US Food and Drug Administration.
Gaps in US Psychedelic Policy and How to Close Them | Health Policy - By @caleighpropes.bsky.social, @katherinecheung.bsky.social, Matthew Eisenberg, David Yaden | @jama.com Health Forum jamanetwork.com/journals/jam...
November 10, 2025 at 3:37 PM
Reposted by existwell
New today in JAMA Health Forum: Our team discusses how to fill policy gaps surrounding the use of psychedelics to treat mental health and substance use conditions, should they be approved by the US Food and Drug Administration.
November 7, 2025 at 9:36 PM