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.
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.
The research consistently shows that classic psychedelics (LSD, psilocybin, DMT, ayahuasca) can induce ego dissolution, which is linked to specific brain changes such as increased global connectivity, decoupling of the default-mode network, and shifts in neural criticality. The experience is multidimensional, with its valence (positive or negative) depending on neurochemical factors like regional glutamate levels, and it is associated with lasting positive outcomes like increased nature relatedness and improved well-being. A key caveat is that most neuroimaging studies have small sample sizes and are open-label or placebo-controlled but not always fully blinded, limiting the strength of causal claims.
Direction is which way each study's own result points, not our rating of the study.
| Study | Design | Sample size | Direction | Finding |
|---|---|---|---|---|
| Increased Global Functional Connectivity Correlates with LSD-Induced Ego Dissolution. 2016 | observational cohort | Supports | LSD increases global connectivity in the brain, which correlates 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 demonstrates strong psychometric properties and confirms that ego dissolution is 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 is 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 | Ego dissolution experiences reveal that the self-model plays an important binding function in cognitive processing, but the self does not exist as a real entity. | |
| 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 induces region-dependent alterations in glutamate that predict the valence of ego dissolution: higher medial prefrontal glutamate is linked to negative ego dissolution, while lower hippocampal glutamate is linked to positive ego dissolution. | |
| Looking for the Self: Phenomenology, Neurophysiology and Philosophical Significance of Drug-induced Ego Dissolution 2017 | theoretical or philosophical paper | Unclear | Drug-induced ego dissolution disrupts the minimal embodied self, suggesting that ordinary experience includes a minimal self-awareness rooted in multisensory processing. | |
| 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 produces sub-acute and long-term reductions in depression and stress, and improvements in convergent thinking, with changes in affect and mindfulness correlated with 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 is significantly increased 2 weeks, 4 weeks, and 2 years after a psychedelic experience, and this increase depends on the extent of ego dissolution during the acute state. |
| Ethics and ego dissolution: the case of psilocybin 2020 | theoretical or philosophical paper | Unclear | The peculiar features of psychedelics like psilocybin, including ego dissolution, warrant an enhanced informed consent process that is 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 | Positive experiences of undifferentiated unity are not sui generis but rather a type of ego dissolution. | |
| Neural Mechanisms and Psychology of Psychedelic Ego Dissolution 2022 | review | Supports | Classic psychedelics, by agonizing 5-HT2A receptors, produce neuromodulatory changes that 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 | 5-MeO-DMT induces profound alterations in consciousness including mystical experiences and ego dissolution, with potential beneficial long-term effects on mental health, but 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 decreases alpha power and increases 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 increases aberrant salience and suggestibility, and LSD-induced aberrant salience correlates 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 transforms inhibitory effective connectivity from the salience network to the default mode network into excitatory connectivity and reduces 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 | Evaluation of N,N-Dimethyltryptamine at the Sigma-1 and 5-HT2A interfaces. | |
| Measuring the reflective self and experiential self in self-transcendent experiences 2026 | theoretical or philosophical paper | Unclear | Self-transcendence involves a decrease in the reflective self (ego dissolution) and an increase in the experiential self, reconciling the paradox of feeling smaller yet larger. | |
| 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 depersonalization/derealization, but these are experienced as more positive and spiritually meaningful than those triggered by trauma, stress, or cannabis, though distress is not uncommon. |
| Ego Dissolution, Death Anxiety, and Impulse Regulation: A Conceptual Psychological Model of Contemplative Transformation 2026 | theoretical or philosophical paper | Unclear | Contemplative practices facilitate psychological transformation by reducing ego dissolution, which diminishes death anxiety and improves impulse regulation. | |
| 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 produce significantly higher dissolution scores than LSD and psilocybin across four of six ego-dissolution factors, while all substances yield 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, and ego dissolution during session 3 correlated with symptom improvement. |
| From hidden springs to endless oceans: exploring the complementary roles of the amygdala and hippocampus in phenomenal experience. 2026 | theoretical or philosophical paper | Unclear | The dual-origin theory of cortical development proposes that the Amygdala-System supports ego-centric consciousness while the Hippocampus-System enables selfless minimal phenomenal experiences. | |
| Prometheus unbound? Oceanic affectivity and the neuropsychodynamics of addiction. 2026 | theoretical or philosophical paper | Unclear | Addiction may function as a failed form of transcendence, with oceanic affectivity (including ego dissolution) offering temporary relief but often reinforcing a regressive return to early undifferentiated states. | |
| DMT-induced shifts in criticality correlate with self-dissolution. 2025 | observational cohort | Supports | DMT shifts brain oscillations away from criticality toward a subcritical state, and this shift correlates with the intensity of self-dissolution. |
LSD increases global connectivity in the brain, which correlates with subjective reports of ego dissolution.
observational cohort
The Ego-Dissolution Inventory demonstrates strong psychometric properties and confirms that ego dissolution is closely related to the psychedelic experience.
validation study
Psilocybin-induced ego dissolution is 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
Ego dissolution experiences reveal that the self-model plays an important binding function in cognitive processing, but the self does not exist as a real entity.
theoretical or philosophical paper
Psilocybin induces region-dependent alterations in glutamate that predict the valence of ego dissolution: higher medial prefrontal glutamate is linked to negative ego dissolution, while lower hippocampal glutamate is linked to positive ego dissolution.
double-blind, placebo-controlled, parallel group design
Drug-induced ego dissolution disrupts the minimal embodied self, suggesting that ordinary experience includes a minimal self-awareness rooted in multisensory processing.
theoretical or philosophical paper
Ayahuasca produces sub-acute and long-term reductions in depression and stress, and improvements in convergent thinking, with changes in affect and mindfulness correlated with the degree of ego dissolution experienced during the ceremony.
observational cohort Sample size: 57
Nature relatedness is significantly increased 2 weeks, 4 weeks, and 2 years after a psychedelic experience, and this increase depends on the extent of ego dissolution during the acute state.
prospective online study Sample size: 654
The peculiar features of psychedelics like psilocybin, including ego dissolution, warrant an enhanced informed consent process that is more comprehensive than typical for other psychiatric medications.
theoretical or philosophical paper
Positive experiences of undifferentiated unity are not sui generis but rather a type of ego dissolution.
theoretical or philosophical paper
Classic psychedelics, by agonizing 5-HT2A receptors, produce neuromodulatory changes that affect hierarchical message-passing in the brain, leading to ego dissolution and potentially enduring therapeutic effects via neural plasticity.
review
5-MeO-DMT induces profound alterations in consciousness including mystical experiences and ego dissolution, with potential beneficial long-term effects on mental health, but human clinical studies are lacking.
review
Inhaled DMT in natural settings decreases alpha power and increases delta and gamma power, with gamma increases correlating with mystical-type experiences.
observational field study Sample size: 35
LSD increases aberrant salience and suggestibility, and LSD-induced aberrant salience correlates with mystical experiences and ego dissolution.
randomized, double-blind, placebo-controlled, crossover design Sample size: 24
LSD transforms inhibitory effective connectivity from the salience network to the default mode network into excitatory connectivity and reduces inhibition from the default mode network to the dorsal attention network, potentially underlying ego dissolution.
experimental study with placebo control Sample size: 25
Evaluation of N,N-Dimethyltryptamine at the Sigma-1 and 5-HT2A interfaces.
theoretical
Self-transcendence involves a decrease in the reflective self (ego dissolution) and an increase in the experiential self, reconciling the paradox of feeling smaller yet larger.
theoretical or philosophical paper
Meditation can induce states phenomenologically similar to depersonalization/derealization, but these are experienced as more positive and spiritually meaningful than those triggered by trauma, stress, or cannabis, though distress is not uncommon.
cross-sectional study Sample size: 121
Contemplative practices facilitate psychological transformation by reducing ego dissolution, which diminishes death anxiety and improves impulse regulation.
theoretical or philosophical paper
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 produce significantly higher dissolution scores than LSD and psilocybin across four of six ego-dissolution factors, while all substances yield 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, and ego dissolution during session 3 correlated with symptom improvement.
case series Sample size: 12
The dual-origin theory of cortical development proposes that the Amygdala-System supports ego-centric consciousness while the Hippocampus-System enables selfless minimal phenomenal experiences.
theoretical or philosophical paper
Addiction may function as a failed form of transcendence, with oceanic affectivity (including ego dissolution) offering temporary relief but often reinforcing a regressive return to early undifferentiated states.
theoretical or philosophical paper
DMT shifts brain oscillations away from criticality toward a subcritical state, and this shift correlates with the intensity of self-dissolution.
observational cohort
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.
440 articles · 203 from the last two years · 82,273 participants across 200 studies reporting sample size
Zenodo (CERN European Organization for Nuclear Research) June 24, 2026 Enkhamgalan Nasanjargal
The text provided is a fragment consisting only of a period, which is insufficient to describe any study, argument, or finding. It cannot be summarized.
Zenodo (CERN European Organization for Nuclear Research) June 18, 2026 Sören van Krunckelsven
When a 5-HT2A agonist (like LSD or DMT) and an NMDA antagonist (nitrous oxide) act together, the resulting ego-dissolving state is dominated by a collapse of long-range functional integration rather than a rise in local signal complexity. A whole-brain dynamic mean-field model on human structural connectomes, with rate-matched conditions to isolate mechanism, showed the combination produced a robust, dose-dependent decrease in functional connectivity (mean ΔFC = −56% ± 12% SD) and a small increase in signal complexity (ΔLZc = +0.9% ± 0.5% SD). The 5-HT2A entropy increase (+5.4%) was largely cancelled by N2O-driven hypersynchrony (−4.6%), making the net complexity change marginal while integration collapse was large. The authors conclude that the combined state is dissociation-dominated rather than entropy-dominated.
Zenodo (CERN European Organization for Nuclear Research) March 23, 2026 Maarten Vergucht
The special theory of relativity suggests the universe is an eternalist four-dimensional block where past, present, and future coexist, yet people experience time as a sequential flow with a privileged now. This paper argues that presentism is not a feature of the universe but a product of conscious observation through the Default Mode Network (DMN), which imposes a reference frame on the eternalist block. Dissolving that reference frame—as occurs during ego dissolution under psychedelics, deep meditation, or near-death experiences—should dissolve presentism, leading to experiences of timelessness and non-locality that match the eternalist block. The ordinary experience of time's flow is thus a local construction, not fundamental reality.
Zenodo (CERN European Organization for Nuclear Research) March 15, 2026 Hamzah Seyed Rasoul
This work argues that individual identity is not dissolved into a universal whole at death, as mystical traditions claim, but is preserved as a unique informational signature within a 165-dimensional computational manifold. The author presents a model called Identity Stability, where personal identity is an invariant cryptographic code that persists across dimensional transitions, supported by an equation and a Lagrangian framework. The text warns that on 20 March 2026, only those who have fortified their identity code will withstand a new informational load, while weak identities may experience psychic collapse. The conclusion declares ego dissolution nullified and individual identity permanently archived.
Zenodo (CERN European Organization for Nuclear Research) March 13, 2026 Prashant Gunjan
Contemplative practices like mindfulness and meditation can reduce egoic boundaries, which in turn diminishes existential fears and improves impulse regulation. This conceptual model proposes that enhanced self-control and lower death anxiety are key mechanisms through which these practices foster emotional stability, resilience, and adaptive behavior. The framework integrates contemporary psychological theory with contemplative insights to explain personal growth and spiritual development, offering a basis for future empirical testing and applications in therapy and organizations.
bioRxiv (Cold Spring Harbor Laboratory) March 5, 2026 Venkatesh Subramani, Annalisa Pascarella, Jérémy Brunel et al.
Lysergic acid diethylamide (LSD) loosens the brain's usual alignment between anatomical structure and neural activity in a frequency-dependent way. Low-frequency brain waves (theta, alpha, beta) become less constrained by the structural connectome, indicating a global relaxation of large-scale dynamics. High-frequency gamma activity shows selective reorganization rather than uniform disruption. Greater gamma-band decoupling within core default-mode network regions predicts the intensity of ego dissolution across individuals. LSD does not cause indiscriminate disintegration but drives system-specific rebalancing: visual and attentional systems decouple while auditory networks strengthen coupling. These findings suggest psychedelic states emerge from frequency-dependent relaxation of structural constraints, with default-mode reorganization as a neural correlate of ego dissolution.
March 2, 2026 Rebekah Senānāyaka preprint
Ego-dissolution—a sense of losing one's usual self-boundaries—is considered important in psychedelic therapy, but existing scales may miss its complexity. A new 34-item measure, the Multidimensional Ego-Dissolution Assessment (MEDA), was tested on 207 people who had profound experiences with ayahuasca, DMT, LSD, or psilocybin. Factor analysis identified six distinct dimensions: dissolving of identity, experiences of eternity, dissolving of physical body, dissolving into environment, clarity about life and purpose, and pleasure. Ayahuasca and DMT produced higher dissolution scores than LSD and psilocybin on four factors, while all substances yielded similarly high scores on insight and pleasure. Dosage did not affect results. The findings suggest that different psychedelics may produce distinct ego-dissolution profiles, which could guide therapeutic choices.
The MIT Press eBooks December 16, 2025 Ulrich Ott
Mystical experiences characterized by non-duality and ego dissolution are linked to specific brain activity patterns. Advanced meditators and psychedelic research reveal that during such experiences, the sense of self appears to dissolve. Neuroimaging and EEG studies identify neural correlates of these states. Factors like personality traits, meditation, and psychedelic substances can facilitate mystical experiences. Recent research with experienced meditators suggests both potential mental health benefits and risks associated with these experiences.
Journal of Theoretical and Philosophical Psychology September 11, 2025 C. H. Sawyer 1 citation
Losing one's sense of self—ego dissolution—occurs during psychedelic experiences, deep meditation, traumatic dissociation, and psychosis. This paper proposes a unifying concept called 'unlooping': the breakdown of recursive mental structures that normally construct and maintain identity. Drawing on predictive processing and enactive cognition, the authors interpret ego dissolution as a graded suspension of feedback loops responsible for agency, continuity, and self-boundary. Through phenomenological analysis and cross-contextual case studies, they argue that selfhood is not a fixed ontological constant but a contingent, dynamically enacted achievement. Unlooping reveals both the fragility and plasticity of identity, with implications for theory, methodology, and therapy.
Human Brain Mapping April 1, 2025 Clayton R. Coleman, Kenneth Shinozuka, Robert Tromm et al. 4 citations
LSD alters consciousness by changing connectivity between the dorsolateral prefrontal cortex (DLPFC), thalamus, and visual areas. In healthy participants, stronger functional connectivity between the left and right DLPFC, thalamus, and fusiform face area correlated with greater ego dissolution. Emotional arousal was linked to increased connectivity between the right DLPFC, intraparietal sulcus, and salience network. A confirmatory reverse analysis supported these findings. Magnetoencephalography data showed that LSD increased theta-band information flow from the thalamus to the DLPFC, supporting the idea that disrupted thalamic gating underlies ego dissolution. The results clarify the DLPFC's role in LSD-induced altered states.