DMT and “ego death”: what ego dissolution is, how it is measured, and what the studies found

THE SHORT VERSION · SWIPE

▶ Watch it as a 20-second video

‹›

Online, “ego death” is often described as the defining moment of a strong DMT experience: the sense of “I” falling away. Researchers study the same thing under a plainer name, ego dissolution. This article explains what the term means, how it is measured and where those measures fall short, what DMT studies have found in the brain, how ego dissolution relates to fear, and why it should not be confused with depersonalisation disorder. For the general meaning of the term and where it came from, see what is ego death. For the basics, see our pillar, what is DMT; for how researchers rate the intensity of the experience it usually belongs to, see what is a DMT breakthrough.

What is ego death, in research terms?

“Ego death” is not a scientific term. Researchers say ego dissolution, which the team that built the most used scale defines as a compromised sense of “self”, and describe as a key feature of the psychedelic experience (Nour et al., 2016). A 2015 psilocybin study describes it as feeling that one’s “self”, “ego” or “I” is disintegrating, or that the border between self and world is dissolving, and notes that similar ego disturbances have been described in schizophrenia since the earliest clinical accounts (Lebedev et al., 2015). Evidence: established as a commonly reported feature of psychedelic states.

It is probably not one thing. A 2018 review comparing psychedelic states with meditation argues that self-consciousness has several dimensions, that neither meditation nor psychedelic states are uniform categories, and that there are important differences even between experiences all described as “self-loss” (Millière et al., 2018). Losing one’s name and story, losing the sense of a body, and losing any boundary between self and world may all be called ego death, yet differ. Evidence: preliminary (a conceptual review).

How is ego dissolution measured?

Mostly by asking people afterwards. The Ego Dissolution Inventory (EDI), published in 2016, is an 8-item self-report scale. Its developers tested it in an internet survey of 691 people, who described 1,828 drug experiences: 1,043 with psychedelics, 377 with cocaine and 408 with alcohol. The eight items formed a single factor with excellent internal consistency (Cronbach’s alpha 0.93) and correlated strongly with a measure of unitive experience. Ego dissolution rose with dose for psychedelics but not for cocaine or alcohol, while the opposite, “ego inflation”, was linked to cocaine (Nour et al., 2016). Evidence: established as a validated scale, from a self-selected online sample.

Scales have limits. When the EDI was translated and tested in German, the expected single-factor structure was not confirmed, and only five of the eight items loaded onto a common ego-dissolution factor (Dworatzyk et al., 2022). Other studies use one questionnaire item, or the “anxious ego dissolution” dimension of a broader altered-states scale. A 2026 DMT interview study argues that questionnaires average over the whole experience and rely on broad constructs such as ego dissolution, which may reflect theoretical assumptions more than lived experience (Sanders et al., 2026). Evidence: preliminary.

How often do DMT reports describe ego dissolution?

It depends on how you look. In 3,778 DMT experiences posted to an online forum and coded by a University of Toronto-led team, 6.9% contained at least one EDI-type statement; the most frequent were a dissolution of “self” or ego (3.7%) and losing all sense of ego (3.5%). The authors caution that the EDI is validated for self-report, not for coding other people’s writing (Lawrence et al., 2022). Forum posts also tend to focus on visions and beings, so this is likely an undercount. Evidence: preliminary.

In the lab, ego dissolution travels with other features. In a 2018 placebo-controlled study, 13 healthy volunteers rated their DMT session on a standard near-death-experience scale, the EDI and a mystical-experience questionnaire. The bigger a person’s rise in ego dissolution, the bigger their rise in near-death-type features (r = 0.69) (Timmermann et al., 2018). That is a correlation in a small group. Evidence: preliminary. See also DMT and near-death experiences.

What happens in the brain during DMT ego dissolution?

The most direct DMT evidence is a 2026 analysis that pooled EEG recordings from two placebo-controlled, single-blind Imperial College studies, giving 27 healthy participants (Irrmischer et al., 2026). The idea they tested is “criticality”: healthy brain rhythms are thought to sit near a balance point between too much order and too much disorder. They found:

• DMT shifted brain rhythms away from that balance point in the alpha band and neighbouring frequencies, towards the more ordered, “subcritical” side.
• Entropy, a measure of unpredictability, rose, while complexity fell.
• The size of the shift in alpha and theta rhythms correlated with how strongly people rated the item “I experienced a disintegration of my usual sense of self or ego”.
• The authors note a limitation: they did not ask participants what they understood that item to mean.

The direction runs against the influential “entropic brain” hypothesis, which, as the authors describe it, predicts that psychedelics move brain dynamics closer to criticality from a slightly subcritical waking baseline (Irrmischer et al., 2026). Evidence: preliminary; the link to the self is a correlation with one rating item.

The two source studies found that DMT sharply reduced alpha and beta rhythms in 13 people, with brain changes closely tracking the subjective experience over time (Timmermann et al., 2019), and that the largest changes in brain connectivity were in high-level “transmodal” regions rich in the 5-HT2A receptor, the main target of classic psychedelics (Timmermann et al., 2023). Evidence: preliminary, from small samples.

Similar questions have been asked of psilocybin. In a 2015 placebo-controlled study of 15 people, psilocybin-related ego dissolution was associated with reduced connectivity between the medial temporal lobe, a memory hub, and high-level cortex, and with a breakdown of the salience network (Lebedev et al., 2015). That was psilocybin, not DMT. Meanwhile, a 2026 theory paper notes that 5-MeO-DMT, a close relative, often produces non-dual or ego-dissolving states rather than encounters with beings (Mago et al., 2026), which hints that “ego death” and entity encounters may involve different processes. Evidence: preliminary. More on the brain side in what happens in the brain on DMT and DMT and the default mode network.

Is DMT ego death frightening?

It can be. In Rick Strassman’s 1990s hospital studies, 12 experienced volunteers described a brief, overwhelming “rush” and a “loss of control” leading into a dissociated state in which euphoria and anxiety alternated or existed together (Strassman et al., 1994). In a 2025 trial at University Hospital Basel, 22 healthy participants received two-hour DMT infusions at several rates in a double-blind, placebo-controlled design. Pleasant effects levelled off, but at the highest rate “anxious ego dissolution” increased further and anxiety was significantly higher than on placebo (Erne et al., 2025). Rates are not reproduced here. Evidence: preliminary.

Outside the lab, fear is common in reports. In the coded forum reports, items from the fear section of a challenging-experience questionnaire appeared in 22.2% of experiences. The authors note that ego dissolution can bring a sense of unity but also a “dread of ego dissolution”, with possible destabilising effects through depersonalisation and derealisation (Lawrence et al., 2022). In a 2020 survey of 2,561 people recalling their most memorable DMT encounter, 41% reported fear (Davis et al., 2020). Evidence: preliminary (self-selected reports).

Is ego death the same as depersonalisation?

No, though they are related. Depersonalisation (the self feels unreal) and derealisation (the world feels unreal) are common, short-lived effects of classic psychedelics that usually stop when the drug wears off. When these symptoms last most of the day for months, the diagnosis of depersonalisation-derealisation disorder is likely (Michal, 2026). A 2023 systematic review of 23 studies puts the disorder at around 1% of the general population (Yang et al., 2023). Evidence: established.

Drugs can trigger it. In an internet survey of 394 adults with chronic depersonalisation, 196 said a drug set it off; cannabis and hallucinogens were the most common, followed by ecstasy. Drug-triggered and other cases looked alike and responded similarly, and the drug-triggered group improved more over time (Simeon et al., 2009). There are no DMT-specific figures. One specialist argues that psychedelics act as a catalyst that speeds the onset in vulnerable people rather than as the sole cause, and that the “never-ending trip” framing is reductionist and may lead to false illness beliefs and erode patients’ self-efficacy (Michal, 2026). That is one expert’s view. Evidence: preliminary.

If ego dissolution and depersonalisation share a mechanism, that has not been shown. One possibility, which is our framing and has not been tested, is that the sense of being a real self and the sense of the world being real are set by related processes that DMT and depersonalisation push in different directions. Our article on why DMT feels more real than reality covers the realness side. Evidence: unresolved.

What we still don’t know

• Whether “ego dissolution” is one experience or several. Researchers increasingly think several (preliminary).
• How often it happens with DMT in general. Forum coding gives 6.9%, but forum posts are not designed to capture it (unresolved).
• Whether the criticality shift causes the loss of self, follows from it, or just accompanies it. The evidence is one correlation in 27 people (unresolved).
• Why some ego dissolution is peaceful and some terrifying (unresolved).
• Whether DMT specifically can trigger lasting depersonalisation, and in whom. No DMT-specific data exist (unresolved).

The fair summary: ego dissolution is a real and measurable part of many psychedelic experiences, with a validated if imperfect scale and a first DMT brain correlate. It is not a reward, it is sometimes frightening, and it is different from a lasting loss of the sense of reality. For what people report alongside it, read DMT entity types explained.

Shroomverse sells mushroom products. This article is general information about ego dissolution in published DMT research. It is not medical, legal or purchasing advice, and it does not recommend any product.