Ego dissolution research: what the evidence shows

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 September 27, 2026

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.

Across the empirical studies, ego dissolution is a reliably measurable feature of classic psychedelic states, most consistently linked to disrupted large-scale brain network organization (especially default-mode, salience, and medial temporal systems) and to serotonergic 5-HT2A action. It correlates with subjective drug intensity and with downstream outcomes such as improved affect, nature relatedness, and mystical-type experience, though the direction of specific neural changes varies by compound and analysis. The main caveats are small samples, mostly acute single-dose designs, and heavy reliance on self-report and theoretical models, so durability and causal mechanisms 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 high-level association cortices and thalamus, and this increase correlated with subjective reports of ego dissolution.
Ego-Dissolution and Psychedelics: Validation of the Ego-Dissolution Inventory (EDI) 2016	validation study		Supports	The Ego-Dissolution Inventory showed strong psychometric structure, internal consistency, and construct validity, and ego dissolution was closely related to 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 medial temporal-to-cortical connectivity, salience network disintegration, and reduced interhemispheric communication.
Self unbound: ego dissolution in psychedelic experience 2017	theoretical		Unclear	Argues that ego dissolution is explained by predictive processing, in which the self-model is a useful fiction performing 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		Mixed	Psilocybin induced region-dependent glutamate changes that predicted ego dissolution valence: higher medial prefrontal glutamate with negative experiences, lower hippocampal glutamate with positive experiences.
Looking for the Self: Phenomenology, Neurophysiology and Philosophical Significance of Drug-induced Ego Dissolution 2017	theoretical		Unclear	Argues that drug-induced ego dissolution disrupts subpersonal processes underlying the minimal or embodied self, consistent with Bayesian models of 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 4-week reductions in depression and stress and improved convergent thinking, with changes in affect, life satisfaction, and mindfulness correlated with the degree of ego dissolution experienced.
From Egoism to Ecoism: Psychedelics Increase Nature Relatedness in a State-Mediated and Context-Dependent Manner. 2019	prospective online study	654	Supports	Nature relatedness increased 2 weeks, 4 weeks, and 2 years after a psychedelic experience, and this increase depended on the extent of ego dissolution and perceived natural surroundings during the acute state.
Ethics and ego dissolution: the case of psilocybin 2020	theoretical		Unclear	Argues that features such as loss of self-importance and feelings of unity pose novel risks warranting an enhanced informed consent process for psilocybin treatment.
Mystical and Other Alterations in Sense of Self: An Expanded Framework for Studying Nonordinary Experiences 2020	theoretical		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 acting at 5-HT2A receptors alter hierarchical message-passing in the brain, producing ego dissolution and potentially enduring therapeutic effects via neural plasticity.
A narrative synthesis of research with 5-MeO-DMT. 2022	review		Supports	Reports that 5-MeO-DMT induces profound alterations in consciousness including mystical experiences, with potential beneficial long-term mental health effects, but notes 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 subjective reports indicative of mystical-type experience features.
LSD, madness and healing: Mystical experiences as possible link between psychosis model and therapy model. 2023	randomized, double-blind, placebo-controlled, crossover	24	Supports	LSD increased aberrant salience and suggestibility but not mindfulness, and LSD-induced aberrant salience correlated highly 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 default mode-to-dorsal attention inhibition, changes proposed to underlie ego dissolution.
Who am I? Self-inquiry as a neurophenomenological approach to consciousness 2026	theoretical		Unclear	Argues that self-inquiry from Advaita Vedanta can be operationalized as a systematic phenomenology of selfhood that attenuates the narrative self and may facilitate nondual awareness.
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, so no empirical finding can be extracted; the title indicates a mechanical-first evaluation of DMT at sigma-1 and 5-HT2A interfaces.
Measuring the reflective self and experiential self in self-transcendent experiences 2026	theoretical		Unclear	Proposes that self-transcendence involves a decrease in the reflective self (ego dissolution) and an increase in the experiential self, reconciling the feeling of being 'smaller yet larger'.
Ego dissolution as a collapse of integration, not a surge of entropy 2026	computational modeling study		Mixed	In a whole-brain model, combined serotonergic and dissociative perturbation produced a dissociation-dominated state with loss of long-range integration rather than a surge in local signal complexity.
A cross-sectional survey on depersonalization/derealization and meditation-induced alterations of the self. 2026	cross-sectional study	121	Mixed	Meditation-induced DPDR-like states were phenomenologically similar to other triggers but rated more positive, welcome, and spiritually meaningful, though distress was not uncommon.
How Consciousness Introduces Presentism into an Eternalist Spacetime: ego-dissolution as presentism-dissolution. 2026	theoretical		Unclear	Proposes that presentism is a local construction imposed by the default mode network and that ego dissolution dissolves this presentism, yielding an experience isomorphic to an eternalist block universe.
"Ego Dissolution" Nullification and Establishment of the "Identity Stability" 2026	theoretical		Opposes	Argues that individual identity is an invariant informational singularity that does not dissolve, and proposes a protocol for preserving identity.
Ego Dissolution, Death Anxiety, and Impulse Regulation: A Conceptual Psychological Model of Contemplative Transformation 2026	theoretical		Unclear	Proposes a model in which contemplative practices influence ego dissolution, death anxiety, and impulse regulation, with reduced death anxiety and enhanced impulse regulation mediating psychological benefits.
LSD Relaxes Structural Constraints on Brain Dynamics and Default Mode Decoupling Tracks Ego Dissolution 2026	experimental study		Supports	LSD decoupled low-frequency brain activity from anatomical constraints, and greater gamma-band decoupling within default-mode network regions predicted ego dissolution intensity.
Multidimensional Ego-Dissolution Assessment (MEDA): Scale Development and Substance-Specific Comparisons 2026	cross-sectional survey with exploratory factor analysis	207	Mixed	A six-factor ego-dissolution structure emerged, with ayahuasca and DMT producing higher dissolution scores than LSD and psilocybin on four factors while all substances scored equivalently high on insight and pleasure; dosage showed no significant effects.

Points of agreement

Ego dissolution is a measurable, coherent construct closely tied to classic psychedelic experience and can be assessed with validated self-report instruments.
Classic psychedelics acting at 5-HT2A receptors reliably induce ego dissolution, and its intensity correlates with subjective drug effects.
Ego dissolution is consistently associated with altered large-scale brain network organization, particularly involving default-mode, salience, and medial temporal systems.
Greater ego dissolution is linked to downstream benefits such as improved affect, well-being, and nature relatedness in some studies.

Conflicts

Neural findings point in different directions: some report increased global connectivity with LSD, while others report decreased medial temporal-to-cortical connectivity, salience network disintegration, or loss of integration under psilocybin or combined drug models.
Some accounts frame ego dissolution as a loss of integration, whereas the entropic brain view frames it as increased signal diversity or complexity.
Substance comparisons disagree: one survey finds ayahuasca and DMT produce higher dissolution than LSD and psilocybin, while other work treats classic psychedelics as broadly comparable inducers.
Theoretical papers disagree on whether the self genuinely dissolves or is an invariant entity that cannot dissolve.

Gaps

Durability of ego-dissolution-related neural and psychological changes beyond acute and short follow-up windows is largely unexamined.
Most empirical studies have small samples and rely on self-report, with limited blinding and control for expectancy.
Dose-response relationships are inconsistently reported, and one survey found no significant dosage effects.
Human clinical data are lacking for some compounds such as 5-MeO-DMT.
Populations studied are mostly healthy volunteers or ceremony attendees, limiting generalizability to clinical and diverse cultural groups.
The causal role of ego dissolution in therapeutic outcomes remains untested in most designs.

Browse these studies in the library

Common questions

What does the research agree on about ego dissolution?

Ego dissolution is a measurable, coherent construct closely tied to classic psychedelic experience and can be assessed with validated self-report instruments.
Classic psychedelics acting at 5-HT2A receptors reliably induce ego dissolution, and its intensity correlates with subjective drug effects.
Ego dissolution is consistently associated with altered large-scale brain network organization, particularly involving default-mode, salience, and medial temporal systems.
Greater ego dissolution is linked to downstream benefits such as improved affect, well-being, and nature relatedness in some studies.

Where do studies on ego dissolution conflict?

Neural findings point in different directions: some report increased global connectivity with LSD, while others report decreased medial temporal-to-cortical connectivity, salience network disintegration, or loss of integration under psilocybin or combined drug models.
Some accounts frame ego dissolution as a loss of integration, whereas the entropic brain view frames it as increased signal diversity or complexity.
Substance comparisons disagree: one survey finds ayahuasca and DMT produce higher dissolution than LSD and psilocybin, while other work treats classic psychedelics as broadly comparable inducers.
Theoretical papers disagree on whether the self genuinely dissolves or is an invariant entity that cannot dissolve.

What is still unknown about ego dissolution?

Durability of ego-dissolution-related neural and psychological changes beyond acute and short follow-up windows is largely unexamined.
Most empirical studies have small samples and rely on self-report, with limited blinding and control for expectancy.
Dose-response relationships are inconsistently reported, and one survey found no significant dosage effects.
Human clinical data are lacking for some compounds such as 5-MeO-DMT.
Populations studied are mostly healthy volunteers or ceremony attendees, limiting generalizability to clinical and diverse cultural groups.
The causal role of ego dissolution in therapeutic outcomes remains untested in most designs.

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.

The full method, including what a person does and does not review, is on the methods page.

Ask your own question in the Research Synthesis Tool

556 articles · 211 from the last two years · 91,325 participants across 247 studies reporting sample size

Common study designs

review 37 observational cohort 36 cross-sectional study 15 cross-sectional survey 26 theoretical or philosophical paper 171

Research volume by year

Compare topics →

80 studies whose primary subject is ego dissolution since 2015

2026 is partial

Show the numbers

Studies about ego dissolution per year, 2015 to 2026, peaking at 16 in 2025
Year	Studies
2015	1
2016	2
2017	2
2018	1
2019	1
2020	5
2021	10
2022	10
2023	9
2024	9
2025	16
2026	14

Research

Synthesize the evidence → Search all →

Beyond the Identity Paradigm: Self-Addiction, Anti-Self Psychology, and Psychedelic Ego-Dissolution

Theory & Psychology October 27, 2026 Brian Nuckols

Contemporary psychology treats the construction, maintenance, and enhancement of a coherent self-concept as the implicit telos of therapeutic intervention, an assumption so thoroughly embedded in clinical training, diagnostic frameworks, and outcome measurement that it functions less as a theoretical commitment than as a perceptual habit. This article argues that compulsive identity maintenance...

DOI: 10.1177/09593543261485252

Navigating the Therapeutic Potential of Ego Dissolution

Journal of Anomalous Experience and Cognition October 6, 2026 Rebecka Malm

Ego dissolution (ED; a temporary disruption of self-boundaries and personal identity) is a central feature of many altered states of consciousness. With the resurgence of psychedelic research, these experiences have become of growing clinical relevance, as they can evoke both profound therapeutic transformation and significant psychological destabilization. This conceptual paper reviews the...

DOI: 10.31156/jaex.28663

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 preprint

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,...

DOI: 10.5281/zenodo.20751383 Nmda receptor Control theory sociology Noise video Agonist +2

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 preprint

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...

DOI: 10.5281/zenodo.19000137 Mindfulness Contemplation Impulse physics Death anxiety +10

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. preprint

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...

DOI: 10.64898/2026.03.02.709138 Default mode network Decoupling probability Magnetoencephalography Dynamical decoupling +10

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...

DOI: 10.31234/osf.io/9c6xg_v1 Ayahuasca Psilocybin Pleasure Clarity +4

How Deliberate Metaphors Enable New Ways of Conceiving the Self After Psilocybin-Induced Ego Dissolution Experiences

2026 Diego Monasterio López

Psychedelic experiences have shown promise in addressing mental health challenges (Doblin et al., 2019). Among these, ego dissolution is a central phenomenon associated with lasting therapeutic effects, involving a temporary disruption of the neurocognitive self-model that loosens entrenched patterns of rumination and self-reference (Kałużna et al., 2022; Letheby, 2021; Deane, 2020; Nour et...

DOI: 10.7764/tesisuc/let/109071

The Therapeutic Alliance's Moderating Role on the Negative Relationship Between Dread of Ego Dissolution and Changes in Depression Symptom Severity in Psilocybin-Assisted Therapy for Treatment-Resistant Depression: A Secondary Analysis of the PsiDeR Trial.

2026 Canyon Akromis, Lorraine Li, Kwon Mok Ko et al. preprint

This project is a secondary analysis of data from Psilocybin in Depression Resistant to Standard Treatments (PsiDeR) study, a phase II, randomised, placebo-controlled clinical trial where participants with treatment resistant depression received either 25 mg of psilocybin or a placebo alongside psychotherapy. This research seeks to determine whether the therapeutic alliance, measured by the...

DOI: 10.17605/osf.io/dwxbk

The Dissolving Self in the Therapeutic Encounter: Mysticism, Ego Dissolution, and Clinical Transforma tion

Zenodo (CERN European Organization for Nuclear Research) December 17, 2025 Ungar-Sargon MD PhD Julian preprint

Abstract This article presents a comprehensive academic exposition of the dissolving self within the therapeutic encounter, integrating Jewish mystical theology, psychodynamic theory, and contemporary neuroscience. Drawing upon the foundational work of Katzman, Bernstein, and Ponak on the authentic mystical self; Ungar-Sargon's theology of tzimtzum, Or HaGanuz, and sacred clinical space; and...

DOI: 10.5281/zenodo.18227227

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...

DOI: 10.7551/mitpress/14600.003.0015 Full text Work physics Identification biology Product mathematics