DMT surveillance ·
DMT Research Brief
This first edition establishes a short 2026 baseline. One genuinely new paper appeared this week; four earlier items are included because they materially advance the methods needed to study DMT phenomenology and recurring encounters.
Bottom line
The strongest development is methodological. The literature is beginning to move from colourful inventories of entities toward temporal structure, common measurement and testable competing explanations. Nothing here establishes that reported beings are externally real, and nothing yet demonstrates reproducible shared content between independent participants.
At a glance
- Research items
- 5
- With empirical findings
- 3
- Manuscript decisions
- 5
Tap a heading to open or close each section.
Research watch(5)
1. DMT–harmine produces faster but more structured brain-state sequences
Peer-reviewed research · Published online 22 September 2026
Niedernhuber and colleagues reanalysed high-density EEG from 25 healthy participants in a double-blind, randomised crossover study comparing DMT plus harmine, harmine alone and placebo.
Empirical finding
DMT–harmine shortened EEG microstates while increasing their frequency and sequence complexity. Curiously, transitions also became less random—a more varied repertoire, but with greater short-range predictability.
What this contributes
This complicates the loose claim that psychedelic consciousness is merely “more entropic.” Neural activity was simultaneously more dynamic and more sequentially organised.
Limits
This was DMT combined with harmine, so the result cannot automatically be assigned to DMT alone. The small sample came from an existing formulation trial, making this a new analysis rather than a new cohort. EEG microstates are descriptive signatures, not established representations of particular experiences or entities. Two authors co-founded Reconnect Labs, which develops psychedelic medicines; code and data are available.
Source: Journal of Psychopharmacology paper
2. A structured sequence preceding perceived presences
Peer-reviewed primary research · 14 July 2026
Sanders and colleagues conducted detailed micro-phenomenological interviews after 23 experienced psychedelic users received 20 mg intravenous DMT during combined fMRI–EEG scanning. Perceived presences appeared in 17 interviews.
Empirical finding
Bodily changes generally arose before visual and auditory effects. Perceived presences ordinarily appeared only after multisensory effects and three-dimensional spatial organisation had developed. The researchers extracted 125 phenomenological categories, with substantial-to-high inter-rater agreement.
What this contributes
Rather than merely counting aliens, guides or beings, the paper maps the construction sequence of the experience. It suggests that perceived agency may be a higher-order feature of an already assembled immersive world, rather than an isolated hallucination dropped into otherwise ordinary perception.
Limits
Exploratory analysis; small and preselected sample; psychedelic-naïve participants were excluded; interviews relied on recall immediately after the event; scanner noise, blindfolding and repeated intensity questions could shape the experience. This extends an existing experimental cohort rather than providing an independent replication. Several authors report psychedelic-industry advisory work; the study also had private philanthropic funding.
Source: Neuroscience of Consciousness paper
3. A better instrument for comparing recurring visual structures
Peer-reviewed methods paper · 2 September 2026
Hewitt, Seth and Schwartzman introduce the Six-Dimensional Visual Hallucination Questionnaire, measuring geometric content, semantic content, detail, vividness, entropy and focality. Validation used three studies totalling 962 responses, including images, stroboscopic hallucinations and retrospectively reported psychedelic closed-eye visuals.
Empirical finding
Stroboscopic effects were predominantly vivid, simple and geometric; psychedelic visuals combined geometric structure with greater semantic content, detail and vividness.
What this contributes
It provides a common quantitative vocabulary for comparing visual structure across induction methods. This could improve future attempts to test whether reported “rooms,” tunnels, lattices or architectural spaces genuinely cluster across DMT participants.
Limits
The psychedelic component was retrospective, online and chemically heterogeneous—not a controlled DMT study. High internal consistency came with substantial inter-item redundancy, so the six dimensions are not yet convincingly independent. It measures visual content, not entity agency, communication or ontological status.
Source: Royal Society Open Science paper
4. The next extended-state DMT study is now registered
Prospective Phase I protocol · Registered July 2026; planned start September 2026
A UC San Diego study targets 20 healthy volunteers with prior DMT experience. Participants will receive two continuous intravenous DMT conditions lasting approximately an hour during fMRI. Outcomes include visual phenomenology, immersion, the Autonomous Entity Questionnaire, explicit entity-intensity ratings and follow-up measures.
What this contributes
Unlike earlier feasibility work, this protocol directly prespecifies entity phenomena alongside prolonged-state neuroimaging. It may allow investigators to compare how immersive environments and presences develop while the state is sustained.
Limits
No findings yet. The sample is small and deliberately non-naïve, so expectancy and prior DMT narratives could influence reports. The design can identify associations between experience and brain activity but cannot determine whether perceived entities possess external existence.
Source: ClinicalTrials.gov record NCT07693257
5. Two competing explanatory frameworks—neither established
Theoretical and speculative analyses · 2026 baseline
Computational spirits proposes that psychedelic disruption of sensory attenuation, combined with richer or less constrained predictive models, encourages the brain to attribute internally generated agency to a non-self source. Traces of the Other asks whether extended-state DMT could support blinded information-transfer or intersubjective-correlation experiments.
What this contributes
The first framework has value because it produces behavioural and neural predictions. The second is useful insofar as it asks how extraordinary claims could be tested rather than merely asserted.
Limits
Computational spirits contains no new empirical data, no formal mathematical implementation and currently lacks direct measures of several proposed mechanisms. Traces of the Other is a preprint and its claim that DMT exposes normally inaccessible conscious agents remains speculation resting on the contested “conscious realism” framework. There is presently no positive evidence for information originating outside the participant.
Source: Neuroscience of Consciousness paper; PsyArXiv preprint
Manuscript decisions(5)
| Decision | Action |
|---|---|
| Change now | Add a substantive note on the Sanders paper to the entity chapter. |
| Place carefully | Add the DMT–harmine EEG result under neural dynamics, not ontology. |
| Monitor | Six-Dimensional Visual Hallucination Questionnaire and the registered extended-state DMT study. |
| Framework watch | Keep both explanatory frameworks clearly labelled as theoretical or speculative. |
| Ontological claims | No upgrade: no external reality or reproducible shared content has been demonstrated. |
These bulletins are not medical, psychological or legal advice, and nothing here encourages the obtaining, possession or use of any controlled substance.