Evidence mapPaperPMID 40940559Full record

ReviewMolecular psychiatry2026

Psychedelic studies in nonhuman primates: Past and future.

Jamie C Masthay, Alex C Kwan, Steve W C Chang

Abstract readReview
In one paragraph

Review in Molecular psychiatry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Jamie C MasthayDepartment of Psychology, Yale University, New Haven, CT, USA.ORCID http://orcid.org/0009-0002-2623-6890
Alex C KwanMeinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.ORCID http://orcid.org/0000-0003-2169-1667
Steve W C ChangDepartment of Psychology, Yale University, New Haven, CT, USA. steve.chang@yale.edu.ORCID http://orcid.org/0000-0003-4160-7549

Funding

Prefrontal and Amygdalar Mechanisms of Live Social Gaze InteractionR01MH128190 · NIMH · YALE UNIVERSITY · 2022 to 2025
$1.2M
Role of cortical GABAergic interneurons in psychedelic drug actionR01MH137047 · CORNELL UNIVERSITY · 2025 to 2025
$628k
Cellular basis of psilocybin actions in frontal cortexR01MH128217 · CORNELL UNIVERSITY · 2025 to 2025
$598k
NIMH NIH HHS R01 MH128190NIMH NIH HHS R01 MH128217NIMH NIH HHS R01 MH137047U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R01MH128190U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R01MH128217U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R01MH137047
6 · The paper itself

Abstract

Studies of serotonergic or 'classic' psychedelics in nonhuman primates (NHPs) have provided valuable information about the drugs' effects on the brain and behavior in closely related species to humans. Psychedelics induce characteristic changes to both spontaneous and operant behaviors in NHPs, though variability exists in the different effects reported by different studies; this variability could be due to factors like differences across drugs, differences in dose ranges across studies, and inter-individual variability in drug responsiveness. Several effects of psychedelics in NHPs mirror those in humans, including development of tolerance to psychedelic effects and low abuse liability, though evidence is mixed on whether psychedelics cause visual hallucinations in NHPs. NHP studies have also examined psychedelic mechanisms of action, supporting and connecting existing findings from human and rodent studies. Here we review the knowledge gained from psychedelic research in NHPs encompassing multiple psychedelic compounds in several NHP species. We conclude by highlighting NHPs' potential to serve as preclinical models of psychedelic effects on psychiatric conditions and suggesting several directions for future research to ensure the accuracy and effectiveness of an NHP psychedelic model.

Indexed as

HallucinogensAnimalsBrainHumansPrimatesHallucinogens

Identifiers

PMID40940559
PMCPMC12709594

What Socratic holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.