The Architecture of Ego Dissolution: A Mechanical-First Evaluation of N,N-Dimethyltryptamine at the Sigma-1 and 5-HT2A Interfaces
Zenodo (CERN European Organization for Nuclear Research) June 24, 2026 Enkhamgalan Nasanjargal
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Ego dissolution
The weakening or loss of the sense of a bounded self, measured on its own scales and studied both as a therapeutic mediator and as a source of challenging experience.
State of the evidence
Synthesized
Synthesized from 25 studies in the library · AI-generated, grounded in the abstracts below
Found by searching the library for Ego dissolution, ego-dissolution, ego death, self-boundary loss, depersonalization of self, then ranked by relevance.
Research indicates that ego dissolution is a core feature of the psychedelic experience, consistently linked to alterations in brain network connectivity—particularly involving the default mode, salience, and frontoparietal networks—and to changes in glutamate levels. These neural changes correlate with subjective reports of ego dissolution across LSD, psilocybin, and other psychedelics, and the experience itself is associated with positive outcomes such as increased nature relatedness, improved well-being, and therapeutic benefits, though the durability and generalizability of these effects remain uncertain.
Evidence by study
Direction is which way each study's own result points, not our rating of the study.
What the directions mean
- Supports:
- the study found the intervention worked, or its hypothesis held.
- Opposes:
- it found the opposite, no benefit or a harm.
- No effect:
- no significant difference either way.
- Mixed:
- effects in both directions within the same study.
- Unclear:
- the abstract does not report a direction.
| Study | Design | Sample size | Direction | Finding |
|---|---|---|---|---|
| Increased Global Functional Connectivity Correlates with LSD-Induced Ego Dissolution. 2016 | observational cohort | Supports | LSD increased global functional connectivity in the brain, which correlated with subjective reports of ego dissolution and reduced modular organization. | |
| Ego-Dissolution and Psychedelics: Validation of the Ego-Dissolution Inventory (EDI) 2016 | validation study | Supports | The Ego-Dissolution Inventory demonstrated strong psychometric properties and confirmed a close relationship between ego dissolution and the psychedelic experience. | |
| Finding the self by losing the self: Neural correlates of ego-dissolution under psilocybin 2015 | placebo-controlled study | 15 | Supports | Psilocybin-induced ego dissolution was associated with decreased functional connectivity between the medial temporal lobe and high-level cortical regions, disintegration of the salience network, and reduced interhemispheric communication. |
| Self unbound: ego dissolution in psychedelic experience 2017 | theoretical or philosophical paper | Unclear | Argues that ego dissolution is best explained by a predictive processing account in which the self-model is a useful fiction that performs an integrative cognitive function, but the self does not exist. | |
| Me, myself, bye: regional alterations in glutamate and the experience of ego dissolution with psilocybin. 2020 | double-blind, placebo-controlled, parallel group design | Mixed | Psilocybin induced region-dependent alterations in glutamate that predicted the valence of ego dissolution: higher medial prefrontal cortical glutamate was associated with negatively experienced ego dissolution, while lower hippocampal glutamate was associated with positively experienced ego dissolution. | |
| Looking for the Self: Phenomenology, Neurophysiology and Philosophical Significance of Drug-induced Ego Dissolution 2017 | theoretical or philosophical paper | Unclear | Argues that drug-induced ego dissolution disrupts subpersonal processes underlying the minimal or embodied self, consistent with Bayesian models of phenomenal selfhood, and challenges theories that consciousness always involves self-awareness. | |
| Sub-acute and long-term effects of ayahuasca on affect and cognitive thinking style and their association with ego dissolution 2018 | observational cohort | 57 | Supports | Ayahuasca produced sub-acute and long-term reductions in depression and stress and improvements in convergent thinking, with changes in affect and mindfulness linked to the degree of ego dissolution experienced during the ceremony. |
| From Egoism to Ecoism: Psychedelics Increase Nature Relatedness in a State-Mediated and Context-Dependent Manner. 2019 | prospective online study | 654 | Supports | Nature relatedness was significantly increased 2 weeks, 4 weeks, and 2 years after a psychedelic experience, and this increase was positively correlated with psychological well-being and depended on ego dissolution and the influence of natural surroundings during the acute state. |
| Ethics and ego dissolution: the case of psilocybin 2020 | theoretical or philosophical paper | Unclear | Argues that the peculiar features of psychedelics, such as loss of self-importance and feelings of unity, pose novel risks that warrant an enhanced informed consent process more comprehensive than typical for other psychiatric medications. | |
| Mystical and Other Alterations in Sense of Self: An Expanded Framework for Studying Nonordinary Experiences 2020 | theoretical or philosophical paper | Unclear | Argues that so-called mystical experiences are not a unique category but a type of ego dissolution, and that current self-report scales conflate generic experiential features with culturally shaped appraisals. | |
| Neural Mechanisms and Psychology of Psychedelic Ego Dissolution 2022 | review | Supports | Reviews evidence that classic psychedelics, by agonizing serotonergic 5-HT2A receptors, produce neuromodulatory changes that profoundly affect hierarchical message-passing in the brain, leading to ego dissolution and potentially enduring therapeutic effects via neural plasticity. | |
| A narrative synthesis of research with 5-MeO-DMT. 2022 | review | Supports | Reviews evidence that 5-MeO-DMT induces profound alterations in consciousness and mystical experiences, with potential beneficial long-term effects on mental health and well-being, but notes that human clinical studies are lacking. | |
| Neural and subjective effects of inhaled N,N-dimethyltryptamine in natural settings. 2021 | observational field study | 35 | Supports | Inhaled DMT in natural settings decreased alpha power and increased delta and gamma power, with gamma increases correlating with mystical-type experiences. |
| LSD, madness and healing: Mystical experiences as possible link between psychosis model and therapy model. 2023 | randomized, double-blind, placebo-controlled, crossover design | 24 | Supports | LSD increased aberrant salience and suggestibility but not mindfulness, and LSD-induced aberrant salience correlated with mystical experiences and ego dissolution. |
| Effective Connectivity of Functionally Anticorrelated Networks Under Lysergic Acid Diethylamide. 2023 | experimental study with placebo control | 25 | Supports | LSD transformed inhibitory effective connectivity from the salience network to the default mode network into excitatory connectivity and reduced inhibition from the default mode network to the dorsal attention network, potentially underlying ego dissolution. |
| The Architecture of Ego Dissolution: A Mechanical-First Evaluation of N,N-Dimethyltryptamine at the Sigma-1 and 5-HT2A Interfaces 2026 | theoretical | Unclear | The abstract is empty; no findings are reported. | |
| Measuring the reflective self and experiential self in self-transcendent experiences 2026 | theoretical or philosophical paper | Unclear | Proposes that self-transcendence involves a decrease of the reflective self state (ego dissolution) and a corresponding increase in the experiential self state, reconciling the paradox of feeling 'smaller yet larger.' | |
| Ego dissolution as a collapse of integration, not a surge of entropy 2026 | computational modeling study (dynamic mean-field model) | Supports | In the model, the combined serotonergic–dissociative state is dissociation-dominated: the brain loses its capacity to integrate, not its local richness. | |
| A cross-sectional survey on depersonalization/derealization and meditation-induced alterations of the self. 2026 | cross-sectional study | 121 | Mixed | Meditation can induce states phenomenologically similar to DPDR, but these are experienced as more positive, welcome, and spiritually meaningful than those triggered by trauma, stress, or cannabis, though distress is not uncommon. |
| How Consciousness Introduces Presentism into an Eternalist Spacetime: ego-dissolution as presentism-dissolution. 2026 | theoretical or philosophical paper | Unclear | Proposes that presentism is a local construction introduced by consciousness operating within a reference frame imposed by the DMN, and that ego dissolution dissolves this presentism, revealing an experience isomorphic to the eternalist block universe. | |
| "Ego Dissolution" Nullification and Establishment of the "Identity Stability" 2026 | theoretical or philosophical paper | Unclear | Argues that individual identity is an invariant informational singularity that does not dissolve upon death or dimensional transition, and proposes a protocol for preserving identity during a predicted event on 20 March 2026. | |
| Ego Dissolution, Death Anxiety, and Impulse Regulation: A Conceptual Psychological Model of Contemplative Transformation 2026 | theoretical or philosophical paper | Unclear | Proposes that contemplative practices facilitate transformation by influencing ego dissolution, death anxiety, and impulse regulation, with enhanced impulse regulation and reduced death anxiety mediating psychological benefits. | |
| LSD Relaxes Structural Constraints on Brain Dynamics and Default Mode Decoupling Tracks Ego Dissolution 2026 | experimental study | Supports | LSD induces a global decoupling of low-frequency brain activity from anatomical constraints and frequency-selective reorganization of gamma-band activity within the default-mode network, which predicts ego dissolution intensity. | |
| Multidimensional Ego-Dissolution Assessment (MEDA): Scale Development and Substance-Specific Comparisons 2026 | cross-sectional survey with exploratory factor analysis | 207 | Mixed | Ayahuasca and DMT produced significantly higher dissolution scores than LSD and psilocybin across four of six ego-dissolution factors, while all substances yielded equivalent high scores on insight and pleasure dimensions. |
| Ketamine combined with psychotherapy for treatment-resistant depression: Real-world outcomes and the role of subjective experience. 2026 | case series | 12 | Supports | Combining ketamine with brief psychodynamic psychotherapy yielded 67% response and 58% remission rates, with half of patients maintaining remission at one year, and ego dissolution during session 3 correlated with improvement. |
LSD increased global functional connectivity in the brain, which correlated with subjective reports of ego dissolution and reduced modular organization.
observational cohort
The Ego-Dissolution Inventory demonstrated strong psychometric properties and confirmed a close relationship between ego dissolution and the psychedelic experience.
validation study
Supports
Psilocybin-induced ego dissolution was associated with decreased functional connectivity between the medial temporal lobe and high-level cortical regions, disintegration of the salience network, and reduced interhemispheric communication.
placebo-controlled study Sample size: 15
Argues that ego dissolution is best explained by a predictive processing account in which the self-model is a useful fiction that performs an integrative cognitive function, but the self does not exist.
theoretical or philosophical paper
Psilocybin induced region-dependent alterations in glutamate that predicted the valence of ego dissolution: higher medial prefrontal cortical glutamate was associated with negatively experienced ego dissolution, while lower hippocampal glutamate was associated with positively experienced ego dissolution.
double-blind, placebo-controlled, parallel group design
Unclear
Argues that drug-induced ego dissolution disrupts subpersonal processes underlying the minimal or embodied self, consistent with Bayesian models of phenomenal selfhood, and challenges theories that consciousness always involves self-awareness.
theoretical or philosophical paper
Supports
Ayahuasca produced sub-acute and long-term reductions in depression and stress and improvements in convergent thinking, with changes in affect and mindfulness linked to the degree of ego dissolution experienced during the ceremony.
observational cohort Sample size: 57
Supports
Nature relatedness was significantly increased 2 weeks, 4 weeks, and 2 years after a psychedelic experience, and this increase was positively correlated with psychological well-being and depended on ego dissolution and the influence of natural surroundings during the acute state.
prospective online study Sample size: 654
Unclear
Argues that the peculiar features of psychedelics, such as loss of self-importance and feelings of unity, pose novel risks that warrant an enhanced informed consent process more comprehensive than typical for other psychiatric medications.
theoretical or philosophical paper
Unclear
Argues that so-called mystical experiences are not a unique category but a type of ego dissolution, and that current self-report scales conflate generic experiential features with culturally shaped appraisals.
theoretical or philosophical paper
Reviews evidence that classic psychedelics, by agonizing serotonergic 5-HT2A receptors, produce neuromodulatory changes that profoundly affect hierarchical message-passing in the brain, leading to ego dissolution and potentially enduring therapeutic effects via neural plasticity.
review
Supports
Reviews evidence that 5-MeO-DMT induces profound alterations in consciousness and mystical experiences, with potential beneficial long-term effects on mental health and well-being, but notes that human clinical studies are lacking.
review
Inhaled DMT in natural settings decreased alpha power and increased delta and gamma power, with gamma increases correlating with mystical-type experiences.
observational field study Sample size: 35
Supports
LSD increased aberrant salience and suggestibility but not mindfulness, and LSD-induced aberrant salience correlated with mystical experiences and ego dissolution.
randomized, double-blind, placebo-controlled, crossover design Sample size: 24
Effective Connectivity of Functionally Anticorrelated Networks Under Lysergic Acid Diethylamide.
2023
Supports
LSD transformed inhibitory effective connectivity from the salience network to the default mode network into excitatory connectivity and reduced inhibition from the default mode network to the dorsal attention network, potentially underlying ego dissolution.
experimental study with placebo control Sample size: 25
The abstract is empty; no findings are reported.
theoretical
Proposes that self-transcendence involves a decrease of the reflective self state (ego dissolution) and a corresponding increase in the experiential self state, reconciling the paradox of feeling 'smaller yet larger.'
theoretical or philosophical paper
In the model, the combined serotonergic–dissociative state is dissociation-dominated: the brain loses its capacity to integrate, not its local richness.
computational modeling study (dynamic mean-field model)
Meditation can induce states phenomenologically similar to DPDR, but these are experienced as more positive, welcome, and spiritually meaningful than those triggered by trauma, stress, or cannabis, though distress is not uncommon.
cross-sectional study Sample size: 121
Unclear
Proposes that presentism is a local construction introduced by consciousness operating within a reference frame imposed by the DMN, and that ego dissolution dissolves this presentism, revealing an experience isomorphic to the eternalist block universe.
theoretical or philosophical paper
Argues that individual identity is an invariant informational singularity that does not dissolve upon death or dimensional transition, and proposes a protocol for preserving identity during a predicted event on 20 March 2026.
theoretical or philosophical paper
Proposes that contemplative practices facilitate transformation by influencing ego dissolution, death anxiety, and impulse regulation, with enhanced impulse regulation and reduced death anxiety mediating psychological benefits.
theoretical or philosophical paper
Supports
LSD induces a global decoupling of low-frequency brain activity from anatomical constraints and frequency-selective reorganization of gamma-band activity within the default-mode network, which predicts ego dissolution intensity.
experimental study
Ayahuasca and DMT produced significantly higher dissolution scores than LSD and psilocybin across four of six ego-dissolution factors, while all substances yielded equivalent high scores on insight and pleasure dimensions.
cross-sectional survey with exploratory factor analysis Sample size: 207
Combining ketamine with brief psychodynamic psychotherapy yielded 67% response and 58% remission rates, with half of patients maintaining remission at one year, and ego dissolution during session 3 correlated with improvement.
case series Sample size: 12
Points of agreement
- Ego dissolution is consistently associated with alterations in brain network connectivity, particularly involving the default mode, salience, and frontoparietal networks.
- Ego dissolution is a common feature across different psychedelic substances, including LSD, psilocybin, DMT, and ayahuasca.
- Ego dissolution is linked to positive psychological outcomes, such as increased nature relatedness, improved well-being, and therapeutic benefits.
- Several theoretical papers converge on the idea that ego dissolution involves a disruption of the sense of self, consistent with predictive processing or Bayesian models.
Conflicts
- One study (14108) found that ego dissolution can be experienced as either positive or negative depending on regional glutamate levels, while other studies generally associate ego dissolution with positive outcomes.
- The computational model (44638) suggests ego dissolution is a collapse of integration rather than a surge of entropy, which contrasts with the 'entropic brain' hypothesis that some reviews (13863) may align with.
- Theoretical papers disagree on whether the self exists or is a useful fiction (7207) versus an invariant informational singularity (44655).
Gaps
- Durability of ego dissolution effects and their long-term therapeutic impact is not consistently assessed.
- Blinding and placebo control are often lacking in observational and field studies.
- Sample sizes are generally small, especially in neuroimaging studies.
- Most studies focus on acute effects; long-term changes in brain connectivity or self-processing are understudied.
- Dose-response relationships and substance-specific differences in ego dissolution are not fully characterized.
- The role of context and expectation (set and setting) in modulating ego dissolution is not systematically investigated.
How we analyze this
This synthesis reads the 15 most-cited and 10 most recent studies whose primary subject is Ego dissolution, up to 25 in all. The most-cited set anchors the established evidence, and the recent set surfaces work that is too new to have gathered citations yet.
A study qualifies only when Ego dissolution or a known alias appears in its title or keywords, so broad reviews that mention it only in passing are left out. Each study is read from its abstract, strongest evidence first, and the summary reports the direction of the results along with any conflicts and gaps.
480 articles · 220 from the last two years · 77,177 participants across 203 studies reporting sample size
Common study designs
review
36
observational cohort
33
cross-sectional study
14
cross-sectional survey
26
theoretical or philosophical paper
157
Research
Synthesize the evidence → Search all →Ego dissolution as a collapse of integration, not a surge of entropy
Zenodo (CERN European Organization for Nuclear Research) June 18, 2026 Sören van Krunckelsven
AbstractThe “entropic brain” hypothesis holds that psychedelic and other ego-dissolving states correspondto an increase in the entropy or signal diversity of spontaneous brain activity. Motivated by afirst-person report of a combined serotonergic–dissociative state (LSD/DMT together with nitrousoxide, N2O), we asked a sharper question: when a 5-HT2A agonist and an NMDA antagonist acttogether,...
How Consciousness Introduces Presentism into an Eternalist Spacetime: ego-dissolution as presentism-dissolution.
Zenodo (CERN European Organization for Nuclear Research) March 23, 2026 Maarten Vergucht
How Consciousness Introduces Presentism into an Eternalist Spacetime: Ego Dissolution as Presentism-Dissolution The special theory of relativity strongly suggests that the default ontological structure of the universe is eternalist: a four-dimensional block spacetime in which past, present, and future coexist. Yet our lived experience is overwhelmingly presentist. We experience time as a...
"Ego Dissolution" Nullification and Establishment of the "Identity Stability"
Zenodo (CERN European Organization for Nuclear Research) March 15, 2026 Hamzah Seyed Rasoul
Subject: Nullification of "Ego Dissolution" and Establishment of the "Identity Stability" Standard in the 165-Supercomputer Computational Level: Postdoctoral (Information Topology & 165D Cryptographic Self-Sovereignty) Under the absolute sovereign authority of Seyed Rasoul Hamzah, and in strict accordance with the 10-step protocol, the invalidation of mystical nihilism and the implementation of...
Ego Dissolution, Death Anxiety, and Impulse Regulation: A Conceptual Psychological Model of Contemplative Transformation
Zenodo (CERN European Organization for Nuclear Research) March 13, 2026 Prashant Gunjan
This conceptual paper proposes a psychological model exploring how contemplative practices facilitate transformation by influencing ego dissolution, death anxiety, and impulse regulation. Drawing on insights from mindfulness, meditation, and contemplative traditions, the study examines how the temporary reduction of egoic boundaries (ego dissolution) can diminish existential fears and improve...
LSD Relaxes Structural Constraints on Brain Dynamics and Default Mode Decoupling Tracks Ego Dissolution
bioRxiv (Cold Spring Harbor Laboratory) March 5, 2026 Venkatesh Subramani, Annalisa Pascarella, Jérémy Brunel et al.
Abstract Psychedelics profoundly alter conscious experience, yet how they reshape the relationship between brain anatomy and function remains unclear. In particular, it is unknown whether psychedelic states reflect a global disruption of structure–function organization or a frequency– and network-specific reconfiguration of neural dynamics relative to the structural connectome. Here we address...
Multidimensional Ego-Dissolution Assessment (MEDA): Scale Development and Substance-Specific Comparisons
March 2, 2026 Rebekah Senānāyaka preprint
Rationale: Ego-dissolution represents a key therapeutic mechanism in psychedelic-assisted therapy, yet current measurement approaches may inadequately capture its multidimensional nature.Objective: To develop and validate the Multidimensional Ego-Dissolution Assessment (MEDA) and examine substance-specific patterns across classical psychedelics.Methods: Items from three validated scales...
Meditation: From Self-Regulation to Ego-Dissolution
The MIT Press eBooks December 16, 2025 Ulrich Ott
elucidate the brain dynamics of non-ordinary experiences like "non-duality" and "egodissolution" by combining phenomenological assessment with modern brain imaging technology.In this chapter, I describe (1) typical features of mystical experiences (see glossary);(2) situations, personality traits, and methods that facilitate their occurrence; and (3) recent findings regarding their pos si ble...
Unlooping the self: Ego dissolution and the collapse of recursive identity.
Journal of Theoretical and Philosophical Psychology September 11, 2025 C. H. Sawyer 1 citation
Ego dissolution—the experience of losing one’s sense of self—is reported across a range of altered states, including psychedelic intoxication, meditative absorption, traumatic dissociation, and psychotic episodes. This paper proposes a unifying framework for these phenomena by introducing the concept of unlooping: the breakdown of recursive structures that construct and maintain identity....
The Role of the Dorsolateral Prefrontal Cortex in Ego Dissolution and Emotional Arousal During the Psychedelic State.
Human Brain Mapping April 1, 2025 Clayton R. Coleman, Kenneth Shinozuka, Robert Tromm et al. 4 citations
Lysergic acid diethylamide (LSD) is a classic serotonergic psychedelic that induces a profoundly altered conscious state. In conjunction with psychological support, it is currently being explored as a treatment for generalized anxiety disorder and depression. The dorsolateral prefrontal cortex (DLPFC) is a brain region that is known to be involved in mood regulation and disorders; hypofunction...